Jig for testing stress corrosion of amorphous alloy

Abstract

The utility model belongs to stress corrosion testing technical field, concretely relates to a kind of fixture for amorphous alloy stress corrosion testing.The utility model's fixture for amorphous alloy stress corrosion testing includes: bending beam, present arc shape bending, its outer side is used to adhere to the sample to be measured;And two clamping blocks, for the two ends of the sample to be measured are clamped on bending beam.The utility model's fixture for amorphous alloy stress corrosion testing is clamped on bending beam by two clamping blocks with the two ends of the sample to be measured, so that one side of the sample to be measured can adhere to the outer side of bending beam, not only can the sample to be measured be fixed more firmly, but also can make the bending degree of the sample to be measured and bending beam bending shape more consistent, to meet the testing requirement.

Description

Technical Field

[0001] This utility model belongs to the field of stress corrosion testing technology, specifically relating to a fixture for stress corrosion testing of amorphous alloys. Background Technology

[0002] Metallic materials can experience stress corrosion under the combined effects of static stress and corrosive media. When amorphous alloys are used in specific environments, such as chloride-containing environments, acidic / alkaline environments, or special media environments, stress corrosion testing is generally required.

[0003] Patent publication number CN108956233A discloses a method for testing carbon dioxide corrosion of pipeline steel under bending stress. This method uses a four-point bending fixture to apply bending stress to the pipeline steel sample. The four-point bending fixture includes a support, a top rod, a U-shaped bracket, a transverse rod, and an insulating ceramic rod. Force is applied to the support, which in turn moves the top rod, causing the pipeline steel sample to bend. However, due to the high elasticity of amorphous alloys, the aforementioned four-point bending fixture is insufficiently secure in fixing the sample and makes it difficult to bend the sample to the required curvature. Utility Model Content

[0004] The purpose of this invention is to provide a fixture for stress corrosion testing of amorphous alloys to solve the above-mentioned technical problems.

[0005] This application provides a fixture for stress corrosion testing of amorphous alloys, comprising: The curved beam, bent in an arc, has its outer surface used to fit the sample to be tested; and Two clamping blocks are used to secure both ends of the sample to be tested onto the curved beam.

[0006] In one embodiment of this application, the cross-section of the curved beam is square.

[0007] In one embodiment of this application, the card block includes a clamping opening for accommodating the curved beam and the sample to be tested; The top surface of the clamping opening is used to clamp the surface of the sample to be tested; The bottom surface of the clamping opening is used to clamp the inner surface of the curved beam.

[0008] In one embodiment of this application, the top and bottom surfaces of the clamping opening are both arc-shaped surfaces that bulge inward into the opening.

[0009] In one embodiment of this application, the curvature of the arcuate surface is greater than the curvature of the curved beam.

[0010] In one embodiment of this application, the blocks on both sides of the entry end of the clamping opening are provided with chamfers.

[0011] In one embodiment of this application, the material of the curved beam and / or the locking block is polytetrafluoroethylene or nylon.

[0012] The beneficial effects of this utility model are: Unlike existing technologies, this application provides a fixture for testing the stress corrosion of amorphous alloys. This fixture includes: a curved beam with an arc shape, the outer surface of which is used to fit the sample to be tested; and two clamping blocks for securing both ends of the sample to the curved beam. This fixture uses two clamping blocks to secure both ends of the sample to the curved beam, allowing one side of the sample to fit against the outer surface of the beam. This not only provides a more secure fixation of the sample but also ensures that the curvature of the sample more closely matches the shape of the curved beam, thus meeting the testing requirements.

[0013] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a top perspective view of a preferred embodiment of the amorphous alloy stress corrosion testing fixture of the present invention; Figure 2 This is a bottom perspective view of a preferred embodiment of the amorphous alloy stress corrosion testing fixture of this utility model; Figure 3 This is a side view of a preferred embodiment of the fixture for testing stress corrosion of amorphous alloys according to this utility model; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a bottom perspective view of the card block according to a preferred embodiment of the present invention; Figure 6 This is a top perspective view of a card block according to a preferred embodiment of the present invention.

[0017] In the picture: 1. Curved beam, 11. Outer side, 12. Inner side, 2. Sample to be tested, 3. Clamping block, 31. Top surface, 311. Bottom surface, 312. Chamfer, 32. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] This application provides a fixture for stress corrosion testing of amorphous alloys, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0020] See Figures 1 to 3 In one embodiment of this application, the fixture for stress corrosion testing of amorphous alloys includes: a curved beam 1, which is curved in an arc shape, and its outer surface 11 is used to fit the sample 2 to be tested; and two clamping blocks 3, which are used to clamp the two ends of the sample 2 to be tested onto the curved beam 1.

[0021] In this embodiment, two locking blocks 3 secure both ends of the sample 2 to the curved beam 1, allowing one side of the sample 2 to adhere to the outer surface 11 of the curved beam 1. This not only ensures a more secure fixation of the sample 2 but also makes the curvature of the sample 2 more consistent with the curvature shape of the curved beam, thus meeting the testing requirements. Furthermore, while one side of the sample 2 adheres to the outer surface 11 of the curved beam 1, the other side of the sample 2 can fully contact the corrosive liquid used for stress corrosion testing.

[0022] It is understandable that the diameter of the outer side 11 of the curved beam 1 is larger than the diameter of its inner side 12.

[0023] Optionally, the cross-section of the curved beam 1 is square.

[0024] See Figure 5 and Figure 6 The clamping block 3 includes a clamping opening 31 for accommodating the curved beam 1 and the sample 2 to be tested; the top surface 311 of the clamping opening 31 is used to clamp the surface of the sample 2 to be tested; the bottom surface 312 of the clamping opening 31 is used to clamp the inner surface 12 of the curved beam 1.

[0025] When fixing the sample 2 to be tested, the sample 2 to be tested can be placed on the outer side 11 of the curved beam 1 first, and then the sample 2 to be tested and the curved beam 1 can be inserted together into the clamping opening 31 of the clamping block 3. The two clamping blocks 3 can cooperate to fix the sample 2 to be tested on the outer side 11 of the curved beam 1.

[0026] See Figures 4 to 6 Optionally, the top surface 311 and bottom surface 312 of the clamping opening 31 are both arc-shaped surfaces that bulge inwards. The arc-shaped surfaces can reduce the contact area between the top surface 311 and bottom surface 312 and the inner surface 12 of the sample 2 and the curved beam 1, thereby reducing the friction force when the sample 2 and the curved beam 1 enter and exit the clamping opening 31, and facilitating disassembly and assembly.

[0027] See Figure 4 Preferably, the curvature of the arc-shaped surface is greater than the curvature of the curved beam 1, that is, the degree of curvature of the arc-shaped surface is greater than the degree of curvature of the curved beam 1.

[0028] Preferably, in order to facilitate the insertion of the sample 2 and the curved beam 1 into the clamping opening 31, the clamping block 3 is provided with chamfers 32 on the blocks on both sides of the entry end of the clamping opening 31.

[0029] Optionally, to prevent the curved beam 1 and the locking block 3 from being corroded by the corrosive liquid, the curved beam 1 and / or the locking block 3 are made of polytetrafluoroethylene or nylon.

[0030] In one test scenario, the sample to be tested is Zr. 52.5 Ti5Cu 17.9 Ni 14.6 Al 10 For non-metallic alloys, the etching solution is a copper salt solution (5% NaCl + 0.002% CuCl) with a pH of 3.1-3.3. The sample to be tested is clamped onto the fixture and placed in a beaker containing the copper salt solution. The entire beaker is then placed in a 55°C water bath. After 45 days of testing, the sample fractured. Therefore, the fixture for stress corrosion testing of amorphous alloys in this embodiment can well meet the testing requirements.

[0031] It should be noted that all the devices (parts whose specific structures are not specified) selected in this application are general standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0032] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification.

Claims

1. A fixture for stress corrosion testing of amorphous alloys, characterized in that, include: The curved beam (1) is curved in an arc shape, and its outer side (11) is used to fit the sample to be tested (2). as well as Two clamping blocks (3) are used to clamp the two ends of the sample to be tested (2) onto the curved beam (1).

2. The fixture for stress corrosion testing of amorphous alloys according to claim 1, characterized in that, The cross-section of the curved beam (1) is square.

3. The fixture for stress corrosion testing of amorphous alloys according to claim 1, characterized in that, The card block (3) includes a clamping opening (31) for accommodating the curved beam (1) and the sample to be tested (2); The top surface (311) of the clamping opening (31) is used to clamp the surface of the sample (2) to be tested; The bottom surface (312) of the clamping opening (31) is used to clamp the inner surface (12) of the curved beam (1).

4. The fixture for stress corrosion testing of amorphous alloys according to claim 3, characterized in that, The top surface (311) and bottom surface (312) of the clamping opening (31) are both arc-shaped surfaces that bulge inward into the opening.

5. The fixture for stress corrosion testing of amorphous alloys according to claim 4, characterized in that, The curvature of the arc surface is greater than that of the curved beam (1).

6. The fixture for stress corrosion testing of amorphous alloys according to claim 3, characterized in that, The card block (3) has chamfers (32) on the blocks on both sides of the entry end of the clamping opening (31).

7. The fixture for stress corrosion testing of amorphous alloys according to claim 1, characterized in that, The material of the curved beam (1) and / or the locking block (3) is polytetrafluoroethylene or nylon.

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