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MM'X-Y metal composite function material and preparation method thereof

A metal composite and functional material technology, applied in metal processing equipment, heat exchange materials, chemical instruments and methods, etc., can solve the problems of limiting the application of martensitic phase change materials, material fragmentation, large crystal structure, etc., to achieve Good magnetocaloric effect, high mechanical performance, simple process effect

Inactive Publication Date: 2017-07-04
FOSHAN CHENG XIAN TECH CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, due to the huge crystal structure distortion in the martensitic phase transformation process of MM′X functional materials, huge internal stress is generated, which leads to the fragmentation of such materials after the phase transformation, and cannot be formed and machined, which greatly limits The application of this kind of martensitic phase change material
However, there are few reports on improving the mechanical properties of MM′X functional materials.

Method used

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  • MM'X-Y metal composite function material and preparation method thereof
  • MM'X-Y metal composite function material and preparation method thereof
  • MM'X-Y metal composite function material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1, see Figure 1 to Figure 4 :

[0048] The invention provides a 70% Mn 0.6 Fe 0.4 NiSi 0.5 Ge 0.5 +30% In metal composite functional material and preparation method thereof, comprising the following steps:

[0049] 1) Press Mn 0.6 Fe 0.4 NiSi 0.5 Ge 0.5 The chemical formula prepares raw materials, the raw materials are commercially available metals Mn, Fe, Ni, Si, Ge with a purity higher than 99.9wt.%, wherein, Mn is added in excess at an atomic ratio of 5% to compensate for its volatilization during the preparation process and burnout;

[0050] 2) Using the arc melting method, put the prepared raw materials into the melting furnace, and the melting furnace is vacuumed to 2×10 -3 Pa was cleaned with argon, and then the prepared raw materials were smelted at 1500°C for 3 minutes under the protection of argon to obtain the ingot Mn 0.6 Fe 0.4 NiSi 0.5 Ge 0.5 ;

[0051] 3) Mn 0.6 Fe 0.4 NiSi 0.5 Ge 0.5 In a vacuum of 5 x 10 -3 In a Pa quartz tu...

Embodiment 2

[0059] Example 2, see Figure 5 :

[0060] The invention provides a 75% Mn 0.6 Fe 0.4 NiSi 0.5 Ge 0.5 +25% In metal composite functional material and preparation method thereof, comprising the following steps:

[0061] 1) Press Mn 0.6 Fe 0.4 NiSi 0.5 Ge 0.5 The chemical formula prepares raw materials, the raw materials are commercially available metals Mn, Fe, Ni, Si, Ge with a purity higher than 99.9wt.%, wherein, Mn is added in excess at an atomic ratio of 5% to compensate for its volatilization during the preparation process and burnout;

[0062] 2) Using the arc melting method, put the prepared raw materials into the melting furnace, and the melting furnace is evacuated to 2.5×10- 3 Pa was cleaned with argon, and then the prepared raw materials were smelted at 1700°C for 2 minutes under the protection of argon to obtain the ingot Mn 0.6 Fe 0.4 NiSi 0.5 Ge 0.5 ;

[0063] 3) Mn 0.6 Fe 0.4 NiSi 0.5 Ge 0.5 In a vacuum of 5 x 10- 3 In a Pa quartz tube, annea...

Embodiment 3

[0069] Example 3, see Figure 6 :

[0070] The invention provides an 80% Mn 0.6 Fe 0.4 NiSi 0.5 Ge 0.5 +20% In metal composite functional material and preparation method thereof, comprising the following steps:

[0071] 1) Press Mn 0.6 Fe 0.4 NiSi 0.5 Ge 0.5 The chemical formula prepares the raw materials, the raw materials are commercially available metals Mn, Fe, Ni, Si, Ge with a purity higher than 99.9wt.%, wherein, Mn is added in excess at an atomic ratio of 3% to compensate for its volatilization during the preparation process and burnout;

[0072] 2) Using the arc melting method, put the prepared raw materials into the melting furnace, and the melting furnace is vacuumed to 3×10 -3 Pa was cleaned with argon, and then the prepared raw materials were smelted at 1700°C for 2 minutes under the protection of argon to obtain the ingot Mn 0.6 Fe 0.4 NiSi 0.5 Ge 0.5 ;

[0073] 3) Mn 0.6 Fe 0.4 NiSi 0.5 Ge 0.5 In a vacuum of 5 x 10 -3In a quartz tube of Pa, a...

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Abstract

The invention provides a MM'X-Y metal composite function material and a preparation method thereof. The MM'X-Y metal composite function material comprises, by volume, A% of MM'X<c> and B% of Y, wherein M and M' are transition group elements; X is a IIIA or IVA group element; Y is an element or alloy of one or more elements of a IB group, a IIB group, a IIIA group and a IVA group; the value range of a, b and c is 0.8-1.2; and the sum of A% and B% is 100%. The MM'X-Y metal composite function material is prepared through the steps of smelting, annealing, crushing, mixing, pressing, curing and the like. The MM'X-Y metal composite function material has the higher mechanical property than that of a traditional MM'X material, has a good magnetocaloric effect, and can be well applied to manufacture function materials. The preparation method can manufacture MM'X-Y metal composite function materials with any shape and size according to the actual requirements, is simple in process and easy to operate, achieves industrial production, and has important significance for practical application.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to a MM'X-Y (M and M' are transition group elements, and X is a IIIA or IVA group element) metal composite functional material and a preparation method thereof. Background technique [0002] Martensitic transformation is a very important non-diffused crystal structure transformation in solid state transformation, and the nature of the transformation is first-order. During the phase transition, the high-temperature parent phase lattice point undergoes a non-diffusion displacement shear in the atomic scale, so it is also called a displacement phase transition. It is worth noting that during the phase transition, the chemical composition of the two phases remains unchanged before and after the phase transition, but the crystal structure of the material changes significantly. Usually, people call the high-temperature parent phase austenite and the low-temperature product marten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/00C22C1/10C22F1/16C22F1/02B22F3/16C09K5/14B22F1/142
CPCC09K5/14C22C1/1036C22C30/00C22F1/02C22F1/16B22F3/16C21D2211/008C22C2202/02B22F1/142C22C1/04B22F2998/10B22F2999/00B22F9/04B22F3/18B22F2003/248B22F3/02B22F3/20B22F3/225B22F3/105B22F2202/05B22F2009/044B22F2301/15
Inventor 张虎陶坤龙克文王一旭吴美玲龙毅
Owner FOSHAN CHENG XIAN TECH CO LTD