High-throughput preparation method of metal material

Abstract

The invention relates to a high-throughput preparation method of a metal material. The high-throughput preparation method comprises the following steps: 1) preparing a to-be-researched metal material into a component with a set structure; wherein a plurality of grooves are formed in the component, and the plurality of grooves are communicated with one another through communicating grooves; (2) adding an additive material containing an element to be researched into the groove of the component to obtain the component containing the additive material; wherein the melting point of the additive material is lower than that of the metal material to be researched; (3) the component containing the additive material is heated, so that at least part of the additive material is melted to form a liquid phase, and diffusion of elements in the liquid phase is achieved; the temperature of the heating treatment is lower than the melting point of the metal material to be researched. According to the invention, the problem that the traditional diffusion joint can only realize high-throughput preparation of solid / solid phase change component tissue gradient samples and cannot realize high-throughput preparation of liquid / solid component tissue gradient samples is solved, so that an effective method is provided for accelerating the development of novel alloy materials.

Description

Technical Field

[0001] The invention relates to the technical field of high-throughput preparation in a material genome project, and in particular to a high-throughput preparation method for a metal material. Background Art

[0002] New metal materials are key materials for manufacturing equipment parts in the fields of automobile wheels, aircraft engine casings, etc. Therefore, the performance of metal materials plays a very critical role in the safety of equipment. The research and development of new high-performance metal materials has always been the goal of scientific research. Among them, in the process of designing alloy composition, an important idea is to add a large amount of alloying elements to improve the performance of the alloy.

[0003] At present, the design and development of new metal materials still rely on trial and error, which greatly wastes manpower and material resources. In recent years, in order to speed up the development of alloy materials and achieve a "double halving" of R&D costs and cycles, the Material Genome Project has been officially approved.

[0004] Among them, the diffusion multi-node, as a key technology in high-throughput material experimental methods, has been widely used in the high-throughput preparation of alloy components and tissue samples. Among them, the existing diffusion multi-node method is: press two metal blocks together in a solid state, and use long-term diffusion at a certain temperature to achieve the diffusion of elements between the two solid metals; however, this method is based on the solid / solid diffusion phase change process and cannot achieve high-throughput preparation of components and tissues in the alloy liquid / solid phase change process. Summary of the invention

[0005] In view of this, the present invention provides a high-throughput preparation method for metal materials, the main purpose of which is to provide a high-throughput preparation technology based on a liquid / solid phase change process, so as to effectively enrich the high-throughput preparation technology and further reduce the R&D cost and cycle.

[0006] In order to achieve the above object, the present invention mainly provides the following technical solutions:

[0007] On the one hand, an embodiment of the present invention provides a high-throughput preparation method of a metal material, characterized in that it comprises the following steps:

[0008] 1) The metal material to be studied is made into a component with a set structure; wherein the component is provided with a plurality of grooves, and the plurality of grooves are interconnected through connecting grooves;

[0009] 2) placing an additive material containing the element to be studied into the groove of the component to obtain a component containing the additive material; wherein the melting point of the additive material is lower than the melting point of the metal material to be studied;

[0010] 3) heating the component containing the added material so that at least part of the added material melts to form a liquid phase, thereby achieving diffusion of the elements in the liquid phase; wherein the temperature of the heating treatment is lower than the melting point of the metal material to be studied; and after the heating treatment, cooling is performed to obtain a high-throughput preparation sample of the metal material.

[0011] Preferably, in step 1): the component includes a base; wherein the groove is opened on the base; the connecting groove is opened on the base, and there are multiple connecting grooves for interconnecting the grooves; preferably, any two grooves are connected through one connecting groove; preferably, the base is a plate.

[0012] Preferably, the depth of the groove is no more than 2 / 3 of the thickness of the substrate.

[0013] Preferably, the groove is circular; preferably, the diameter of the groove is 8-10 mm.

[0014] Preferably, the volume of each of the communicating grooves is smaller than the volume of each of the grooves; and / or

[0015] Preferably, the depth of the connecting groove is not greater than 2 / 3 of the thickness of the plate body; and / or

[0016] Preferably, the connecting groove is a U-shaped groove; preferably, the width of the U-shaped groove is 2-3 mm and the length is 10-15 mm.

[0017] Preferably, in the step 2), the type of the added material is an alloy and / or a metal composed of the same element; preferably, the type of the added material is multiple.

[0018] Preferably, in the step 2), after the added material is placed in the groove, it is 1-2 mm lower than the notch of the groove; preferably, the added material contained in the groove is adapted to the shape of the groove.

[0019] Preferably, in step 3), the temperature of the heating treatment is 50-100° C. lower than the melting point of the metal material to be studied.

[0020] Preferably, the heating treatment in step 3) is carried out in a vacuum furnace, wherein the heating treatment comprises: under vacuum conditions, first heating the component containing the added material to a first temperature and keeping it warm for a first time, then heating it to a preset temperature and keeping it warm for 4-5 hours; preferably, the vacuum degree is 3-4Pa; preferably, the first temperature is 280-300°C and the first time is 0.5-1h; preferably, the preset temperature is 50-100°C lower than the melting point of the metal material to be studied; preferably, heating to the preset temperature at a heating rate of 15-20°C / min.

[0021] Preferably, the step 3) is carried out in a muffle furnace, wherein the heating treatment comprises: first introducing argon into the muffle furnace, and after a set time, heating the component containing the added material to a preset temperature, and keeping it warm for 4-5 hours; preferably, the flow rate of argon is 5-10L / min; preferably, the set time is 0.5-1h; preferably, the heating rate of heating the component containing the added material to the preset temperature is 15-20℃ / min; preferably, the preset temperature is a temperature 50-100℃ lower than the melting point of the metal material to be studied.

[0022] Compared with the prior art, the high-throughput preparation method of the metal material of the present invention has at least the following advantages:

[0023] Beneficial effects:

[0024] The embodiment of the present invention provides a high-throughput preparation method for metal materials, which mainly includes the following steps: 1) making the metal material to be studied into a component of a set structure; wherein, a plurality of grooves are opened on the component, and the plurality of grooves are interconnected through connecting grooves; 2) placing an additive material containing the element to be studied into the groove of the component to obtain a component containing the additive material; wherein, the melting point of the additive material is lower than the melting point of the metal material to be studied; 3) heating the component containing the additive material so that at least part of the additive material melts to form a liquid phase, thereby realizing the diffusion of the element in the liquid phase; wherein, the temperature of the heating treatment is lower than the melting point of the metal material to be studied; after the heating treatment, cooling is performed to obtain a high-throughput preparation sample of the metal material. The above preparation concept realizes the high-throughput preparation of liquid / solid composition organization gradient samples with a simple preparation process, which is conducive to the development of new alloy materials and provides an effective method for accelerating the development of new alloy materials.

[0025] In addition, the process design of the present invention is reasonable, the metal material to be studied is used as the matrix, and the added alloy element to be studied is placed in the groove on the matrix, and this arrangement has the advantages of simple operation process and low cost. In addition, the present invention is based on the diffusion of elements in the liquid phase to achieve the preparation of liquid diffusion couples of different alloys. The present invention is simple to operate, reasonably designed, and highly operable, and can significantly reduce the amount of experiments, the development cycle, and the cost in the material research and development process. Compared with the method for preparing high-throughput samples by directional solidification, the present invention is particularly suitable for studying the effects of volatile elements and metal materials (because the heat treatment of the present invention can be carried out in a muffle furnace and will not affect the vacuum system; while the method for preparing high-throughput samples by directional solidification can only be carried out in a vacuum furnace, so that low-melting-point elements are easily volatilized into the equipment under vacuum conditions, affecting the equipment).

[0026] In summary, the present invention solves the problem that traditional diffusion nodes can only achieve high-throughput preparation of compositional organization gradient samples of solid / solid phase transition but cannot achieve high-throughput preparation of liquid / solid compositional organization gradient samples. This is beneficial to the development of new alloy materials in my country and provides an effective method for accelerating the development of new alloy materials.

[0027] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of a component of a setting structure provided by an embodiment of the present invention;

[0029] Figure 2 is another schematic diagram of a component of a setting structure provided by an embodiment of the present invention;

[0030] Figure 3 Metallographic observation result of GH4738 sample prepared in Example 1;

[0031] Figure 4 is a metallographic observation result diagram of the K417G sample prepared in Example 2;

[0032] Figure 5 1 is a metallographic observation result diagram of the A356 sample prepared in Example 3;

[0033] Figure 6 This is a metallographic observation result diagram of the magnesium-aluminum alloy sample prepared in Example 4. DETAILED DESCRIPTION

[0034] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0035] The existing diffusion multi-node method is to press two metal blocks together in a solid state and use long-term diffusion at a certain temperature to achieve the diffusion of elements between the two solid metals. However, its diffusion efficiency is low and it is impossible to know the precipitation rules of some phases during the solidification process.

[0036] The purpose of the present invention is to provide a high-throughput preparation method for metal materials. The method is based on the liquid / solid phase change during the solidification process of the alloy, through heating and heat preservation; preferably the heating treatment process parameters are controlled to make the element interdiffusion reaction between the added materials and the metal material to be studied, so as to control the diffusion distance of the single substance atoms in the alloy melt, and realize the high-throughput preparation of the alloy composition and organization formation and evolution samples during the solidification process. The use of this method can improve the efficiency of high-temperature alloy material research and development, and reduce the research and development cost and development cycle. Among them, the specific scheme of the present invention is as follows;

[0037] An embodiment of the present invention provides a high-throughput preparation method of a metal material, which comprises the following steps:

[0038] 1) The metal material to be studied is made into a component of a set structure by mechanical processing; Figure 1 and Figure 2 As shown, the component is provided with a plurality of grooves 2, and the plurality of grooves 2 are interconnected through connecting grooves 3, so that the additive materials in the grooves 2 can flow mutually in the connecting grooves 3 after melting, and form a new component alloy after diffusion.

[0039] Preferably, if Figure 1 and Figure 2 As shown, the structure of the component of the set structure in this step is as follows: the component includes a base 1; wherein the groove 2 is provided on the base 1; the connecting groove 3 is provided on the base 1, and the connecting groove 3 is multiple, which is used to connect the grooves 2 with each other. Preferably, any two grooves 2 are connected through one connecting groove 3; preferably, the base 1 is a plate body. wherein, when the component of the set structure is specifically prepared, the plate body is prepared first, and then the groove 2 and the connecting groove 3 are processed on the plate body 1.

[0040] Preferably, the depth of the groove 2 is not greater than 2 / 3 of the thickness of the substrate 1 to prevent steel leakage from the groove during the preparation process; preferably, the groove 2 is circular; preferably, the diameter of the groove 2 is 8-10 mm.

[0041] Preferably, the volume of each of the connecting grooves 3 is smaller than the volume of each of the grooves 2, so that the added material in the grooves 2 can flow mutually in the connecting grooves 3 after melting to form a new component alloy; the depth of the connecting grooves 3 is not greater than 2 / 3 of the thickness of the plate body 1.

[0042] Preferably, the connecting groove 3 is a U-shaped groove; preferably, the width of the U-shaped groove is 2-3 mm and the length is 10-15 mm.

[0043] In addition, the metal material to be studied can be a low-melting-point aluminum alloy, a high-melting-point high-temperature alloy, etc., and the plate shape can be a cast or forged shape.

[0044] 2) placing an additive material containing the element to be studied into the groove of the component to obtain a component containing the additive material; wherein the melting point of the additive material is lower than the melting point of the metal material to be studied to prevent the component from melting during subsequent heating treatment and causing preparation failure.

[0045] Here, there can be multiple types of additive materials. Preferably, different types of additive materials are placed in different grooves. Alternatively, multiple types of additive materials can be placed in the same groove (mixed material placement).

[0046] The added material can be a pure metal containing the element to be studied (the so-called "pure metal" refers to a metal containing only the same element) and / or an alloy. Regarding the choice of pure metal or alloy, it should be noted that when optimizing the composition of the metal material to be studied, different alloy elements need to be added. These alloy elements are divided into two categories. The first category is: the melting point of the element to be added is lower than the metal material to be studied. This type can use a pure metal block. The second category is: the melting point of the alloy element to be added is higher than the metal material to be studied. In this case, it is necessary to prepare the high melting point element and the low melting point element into an alloy to lower the melting point.

[0047] The added material is cut into a size that matches the groove shape by wire cutting, and the added material is placed in the groove. The height of the added material does not exceed the surface of the substrate (i.e., the groove mouth) and is 1-2mm lower than the groove mouth to prevent the volume expansion of the added material after melting, causing the metal melt to overflow.

[0048] 3) The component containing the additive material is subjected to a heating treatment so that at least part of the additive material is melted to form a liquid phase, and the diffusion of the elements in the liquid phase is realized; wherein the temperature of the heating treatment is lower than the melting point of the metal material to be studied, so as to ensure that the metal material to be studied is not melted and has a high atomic diffusion force. After the heating treatment, cooling is performed to obtain a high-throughput preparation sample of the metal material (after cooling, that is, a composition gradient sample is formed during the liquid phase solidification process).

[0049] In this step, the heating treatment is performed in a muffle furnace or a vacuum furnace.

[0050] If it is carried out in a vacuum furnace, the specific steps are as follows: first heat to the first temperature (280-300°C) and keep it for 0.5-1h under a vacuum degree of 3-4Pa (to prevent oxidation of the added material), then heat to the preset temperature at a rate of 15-20°C / min, keep it for 4-5h, and quickly control the element diffusion between the added material and the metal material to be studied. It should be noted that the preset temperature is 50-100°C lower than the melting point of the metal material to be studied. Keep it at the first temperature first to make the sample temperature more uniform and the element diffusion more stable.

[0051] If it is carried out in a muffle furnace, the specific steps are as follows: before heating, argon gas is introduced at a flow rate of 5-10L / min. After 0.5-1 hour, the metal block or alloy block is prevented from oxidation. Then, the temperature is raised to the preset temperature at 15-20℃ / min, and the temperature is kept for 4-5h to quickly control the element diffusion between the added material and the metal material to be studied. It should be noted that the preset temperature is 50-100℃ lower than the melting point of the metal material to be studied. Here, considering that the sample will be oxidized in the muffle furnace, the insulation process at the first temperature is removed to shorten the entire preparation time as much as possible.

[0052] The invention proposes a high-throughput preparation method for metal materials, which mainly utilizes the characteristics of different melting points between materials. Theoretically, all alloys and metals are applicable.

[0053] The present invention is further described below by specific experimental examples:

[0054] Example 1

[0055] This embodiment provides a high-throughput preparation method for a metal material, wherein the metal material to be studied in this embodiment is a nickel-based deformed high-temperature alloy GH4738, and its alloy composition is shown in Table 1:

[0056] Table 1 Weight percentage of main elements in GH4738 alloy (wt%)

[0057] Cr Mo Al Ti Co Ni 20.0 4.0 1.5 3.0 13.5 margin

[0058] Among them, the types of added materials include metal Al, alloy Al-Cr, alloy Al-Co, and alloy Ti-Al.

[0059] The specific steps are as follows:

[0060] 1) The metal material to be studied is prepared into a component of a set structure, specifically: 4 circular grooves are prepared on a GH4738 alloy plate with a thickness of 10 mm; wherein the diameter of the circular groove is 8 mm and the depth is not more than 6 mm; a U-shaped groove is prepared by a mechanical processing method, and the circular grooves are interconnected through the U-shaped groove; wherein the depth of the U-shaped groove is not more than 5 mm, the width is 2 mm, and the length is 10 mm, and the volume of each U-shaped groove is smaller than the volume of each circular groove.

[0061] 2) Putting the additive material containing the element to be studied into the groove of the component to obtain the component containing the additive material, as follows:

[0062] The added materials (metal Al, alloy Al-Cr, alloy Al-Co, alloy Ti-Al) are cut into sizes that match the shape of the circular grooves by wire cutting and placed in the grooves of the component (where the four grooves correspond to the four added materials one by one). The added materials in the grooves are not higher than the surface of the GH4738 alloy plate and are 1 mm lower than the surface of the alloy plate.

[0063] 3) Heating treatment: Place the component containing the additive material in a vacuum furnace with a vacuum degree of 3Pa to prevent oxidation of the additive material. First heat it to 300°C and keep it at 300°C for 0.5h, then increase the temperature to 1285°C at 15°C / min and keep it for 4h to quickly control the element diffusion between the additive material and the metal material to be studied. After the insulation time is over, cool it down to obtain a high-throughput preparation sample of the metal material.

[0064] The metallographic observation results of the GH4738 sample obtained by the method of this embodiment are shown in Figure 3 As shown. Figure 3 It can be seen that the addition of Al element will cause the grain boundary to gradually coarsen; the increase of elements such as Cr, Co, and Ti has a significant effect on the dendrite size and dendrite spacing, while the size and number of the intermediate phase are significantly reduced.

[0065] Example 2

[0066] This embodiment provides a high-throughput preparation method for a metal material, wherein the metal material to be studied in this embodiment is a nickel-based high-temperature alloy K417G alloy, and its alloy composition is shown in Table 2:

[0067] Table 2 shows the weight percentage (wt%) of the main alloying elements in K417G alloy

[0068] C Cr Co Mo Al Ti V B Zr Ni 0.15 9.0 10.0 3.0 5.5 4.5 0.7 0.015 0.07 margin

[0069] Among them, the types of added materials include alloy Al-Cr, alloy Al-Co, and alloy Al-V.

[0070] The specific steps are as follows:

[0071] 1) Prepare the metal material to be studied as follows Figure 1 and Figure 2 The component shown is specifically as follows: 3 circular grooves are prepared on a K417G alloy plate with a thickness of 10 mm; wherein, the diameter of the circular groove is 10 mm and the depth is not more than 0.6 of the thickness of the alloy plate; a U-shaped groove is prepared by a mechanical processing method, and the U-shaped groove is used to connect the circular grooves with each other; wherein, the depth of the U-shaped groove is not more than 0.6 of the thickness of the alloy plate, the width is 3 mm, the length is 15 mm, and the volume of each U-shaped groove is smaller than the volume of each circular groove.

[0072] 2) Putting the additive material containing the element to be studied into the groove of the component to obtain the component containing the additive material, as follows:

[0073] The added materials (alloy Al-Cr, alloy Al-Co, alloy Al-V) are cut into sizes that match the circular grooves by wire cutting and placed in the grooves of the component (where 3 grooves correspond to the three added materials one by one). The added materials in the grooves are not higher than the surface of the K417G alloy plate and are 2 mm lower than the surface of the alloy plate.

[0074] 3) Heating treatment: Place the component containing the additive material in a vacuum furnace with a vacuum degree of 4Pa to prevent oxidation of the additive material. First, heat it to 280°C and keep it at this temperature for 1 hour. Then, heat it to 1290°C at a rate of 15°C / min and keep it at this temperature for 5 hours to quickly control the element diffusion between the additive material and the metal material to be studied. Finally, after the insulation time is over, cool it down to obtain a high-throughput preparation sample of the metal material.

[0075] The metallographic observation results of the K417G sample obtained by the method of this embodiment are shown in Figure 4 As shown. Figure 4 It can be seen that with the increase of elements such as Cr, Co, and Ti, the alloy dendrite size is refined and the dendrite spacing is significantly reduced.

[0076] Example 3

[0077] This embodiment provides a high-throughput preparation method for a metal material, wherein the metal material to be studied in this embodiment is A356 aluminum alloy, and its alloy composition is shown in Table 3:

[0078] Table 3 shows the weight percentage of main alloying elements in A356 aluminum alloy

[0079] Si Mg Al 7.0 0.3 margin

[0080] Among them, the types of added materials include alloy Al-Ce, alloy Al-La, alloy Al-Er, and alloy Al-Sc.

[0081] The specific steps are as follows:

[0082] 1) Prepare the metal material to be studied into a component with a set structure (such as Figure 1 and Figure 2 As shown), specifically: 4 circular grooves are prepared on an A356 aluminum alloy plate with a thickness of 20 mm; wherein the diameter of the circular groove is 9 mm and the depth is not more than 10 mm; a U-shaped groove is prepared by a mechanical processing method to connect the circular grooves with each other; wherein the depth of the U-shaped groove is not more than 9 mm, the width is 2.5 mm, the length is 13 mm, and the volume of each U-shaped groove is smaller than the volume of each circular groove.

[0083] 2) Putting the additive material containing the element to be studied into the groove of the component to obtain the component containing the additive material, as follows:

[0084] The added materials (alloy Al-Ce, alloy Al-La, alloy Al-Er, alloy Al-Sc) are cut into sizes that match the shape of the circular grooves by wire cutting and placed in the grooves of the component (where the four grooves correspond to the four added materials one by one). The added materials in the grooves are not higher than the surface of the A356 alloy plate and are 1.5 mm lower than the surface of the alloy plate.

[0085] 3) Heating treatment: Place the component containing the additive material in a muffle furnace, and introduce argon gas before heating. The argon gas flow rate is 5L / min to prevent oxidation of the additive material. The argon gas flow rate is 0.5 hours, and then the temperature is increased to 550℃ at 15℃ / min and kept at this temperature for 4 hours to quickly control the element diffusion between the additive material and the metal material to be studied. Finally, after the insulation time is over, cool it down to obtain a high-throughput preparation sample of the metal material.

[0086] The metallographic observation results of the A356 aluminum alloy sample obtained by the method of this embodiment are shown in Figure 5 As shown. Figure 5 It can be seen that after adding different rare earth elements, the alloy grain size is significantly improved, the dendrite size becomes smaller, and the precipitated intermediate phase is significantly refined.

[0087] Example 4

[0088] This embodiment provides a high-throughput preparation method for a metal material, wherein the metal material to be studied in this embodiment is a magnesium-aluminum alloy, and its alloy composition is shown in Table 4:

[0089] Table 4 shows the weight percentage of main alloying elements in magnesium-aluminum alloys

[0090] Si Al Mg 10 5 margin

[0091] Among them, the types of added materials include alloy Al-Ce, alloy Al-La, alloy Al-Er, and alloy Al-Sc.

[0092] The specific steps are as follows:

[0093] 1) Prepare the metal material to be studied into a component with a set structure (such as Figure 1 and Figure 2 As shown), specifically: 4 circular grooves are prepared on a magnesium-aluminum alloy plate with a thickness of 18 mm; wherein the diameter of the circular groove is 9 mm and the depth is not more than 10 mm; a U-shaped groove is prepared by a mechanical processing method so that the circular grooves are interconnected; wherein the depth of the U-shaped groove is not more than 9 mm, the width is 2.5 mm, and the length is 13 mm, and the volume of each U-shaped groove is smaller than the volume of each circular groove.

[0094] 2) Putting the additive material containing the element to be studied into the groove of the component to obtain the component containing the additive material, as follows:

[0095] The added materials (alloy Al-Ce, alloy Al-La, alloy Al-Er, alloy Al-Sc) are cut into sizes that match the shape of the circular grooves by wire cutting and placed in the grooves of the component (where the four grooves correspond to the four added materials one by one). The added materials in the grooves are not higher than the surface of the magnesium-aluminum alloy plate and are 1.5 mm lower than the surface of the alloy plate.

[0096] 3) Heating treatment: Place the component containing the additive material in a muffle furnace, and introduce argon gas before heating. The argon gas flow rate is 10L / min to prevent oxidation of the additive material. The argon gas flow rate is introduced for 1 hour, and then the temperature is increased to 540°C at 20°C / min and kept at this temperature for 5 hours to quickly control the element diffusion between the additive material and the metal material to be studied. Finally, after the insulation time is over, cool it down to obtain a high-throughput preparation sample of the metal material.

[0097] The metallographic observation results of the aluminum-magnesium alloy sample obtained by the method of this embodiment are shown in Figure 6 As shown. Figure 6 It can be seen that after adding different rare earth elements, the intermediate phase precipitated in the alloy is significantly refined.

[0098] Regarding the above-mentioned embodiment of the present invention, the following is described:

[0099] The present invention solves the problem of high-throughput preparation of composition organization gradient samples that can only achieve solid / solid phase transition using multi-element diffusion nodes by diffusing atoms in the liquid phase at high temperature, and solves the problem of equipment damage caused by the volatilization of volatile elements during the preparation process using a directional solidification furnace; thereby, it is beneficial to accelerate the research and development of new metal materials in my country.

[0100] The results of the above examples show that the present invention solves the problem that the conventional diffusion node can only realize the high-throughput preparation of the composition organization gradient sample of solid / solid phase transition, but cannot realize the high-throughput preparation of the composition organization gradient sample of liquid / solid phase transition. The scheme of the present invention can realize the high-throughput preparation of the organization sample of solid / liquid phase transition, which is beneficial to the research and development of new metal materials.

[0101] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A high-throughput preparation method for a metal material, characterized in that: It includes the following steps: 1) The metal material to be studied is made into a component with a set structure; wherein the component is provided with a plurality of grooves, and the plurality of grooves are interconnected through connecting grooves; 2) placing an additive material containing the element to be studied into the groove of the component to obtain a component containing the additive material; wherein the melting point of the additive material is lower than the melting point of the metal material to be studied; 3) heating the component containing the added material so that at least part of the added material melts to form a liquid phase, thereby achieving diffusion of the elements in the liquid phase; wherein the temperature of the heating treatment is lower than the melting point of the metal material to be studied; and after the heating treatment, cooling is performed to obtain a high-throughput preparation sample of the metal material.

2. The high-throughput preparation method of metal materials according to claim 1, characterized in that: In the step 1), the component includes a substrate; wherein, The groove is provided on the base; The communicating grooves are arranged on the base body, and there are a plurality of communicating grooves, which are used to make the grooves communicate with each other; Preferably, any two of the grooves are connected via a connecting groove; Preferably, the substrate is a plate.

3. The high-throughput preparation method of metal materials according to claim 2, characterized in that: The depth of the groove is no greater than 2 / 3 of the thickness of the substrate; and / or The groove is circular; preferably, the diameter of the groove is 8-10 mm.

4. The high-throughput preparation method of metal materials according to claim 2 or 3, characterized in that: The volume of each of the communicating grooves is smaller than the volume of each of the recesses; and / or The depth of the connecting groove is not greater than 2 / 3 of the thickness of the plate body; and / or The connecting groove is a U-shaped groove; preferably, the width of the U-shaped groove is 2-3 mm and the length is 10-15 mm.

5. The high-throughput preparation method of metal materials according to claims 1-4, characterized in that: In the step 2): The type of the added material is an alloy and / or a metal composed of the same elements; Preferably, there are multiple types of additives.

6. The high-throughput preparation method of a metal material according to any one of claims 1 to 5, characterized in that: In the step 2): After the added material is placed in the groove, it is 1-2 mm lower than the notch of the groove; Preferably, the additional material contained in the groove is adapted to the shape of the groove.

7. The high-throughput preparation method of a metal material according to any one of claims 1 to 6, characterized in that: In the step 3), the temperature of the heating treatment is 50-100° C. lower than the melting point of the metal material to be studied.

8. The high-throughput preparation method of metal materials according to any one of claims 1 to 7, wherein the heating treatment in step 3) is carried out in a vacuum furnace, wherein: The heating treatment comprises: Under vacuum conditions, the component containing the additive material is first heated to a first temperature, kept at the temperature for a first time, and then heated to a preset temperature and kept at the temperature for 4-5 hours; Preferably, the vacuum degree is 3-4Pa; Preferably, the first temperature is 280-300°C and the first time is 0.5-1h; Preferably, the preset temperature is a temperature 50-100° C. lower than the melting point of the metal material to be studied; Preferably, the temperature is increased to a preset temperature at a heating rate of 15-20°C / min.

9. The high-throughput preparation method of a metal material according to any one of claims 1 to 7, characterized in that: The step 3) is carried out in a muffle furnace, wherein the heating treatment comprises: First, introduce argon gas into the muffle furnace, and after a set time, heat the component containing the additive material to a preset temperature and keep it warm for 4-5 hours; Preferably, the flow rate of argon gas is 5-10 L / min; Preferably, the setting time is 0.5-1h; Preferably, the heating rate of heating the component containing the additive material to the preset temperature is 15-20°C / min; Preferably, the preset temperature is a temperature 50-100° C. lower than the melting point of the metal material to be studied.

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