Novel small sample micro-tensile test device and test method thereof

Abstract

The invention relates to the technical field of small sample micro-tensile tests, and discloses a novel small sample micro-tensile test device and a test method thereof. The novel small sample micro-tensile test device comprises a base, a single arm is connected to the top of the base, and a cross beam is connected to the side wall of the single arm. An upper chuck is installed at the bottom of the cross beam, a lower chuck is installed at the top of the base, and two connecting rods are arranged between the upper chuck and the lower chuck. The device can normally operate at the high temperature of 1000 DEG C or above, the number of parts of the device is small, the disassembly is flexible and convenient, the test sample can be easily taken out after experiment, the floor area is small, the cost is lower, and the production process is simple. The materials used by the device are high in corrosion resistance and creep resistance, and the ceramic materials are long in service life and low in maintenance cost, so that the requirement of a high-temperature experiment can be met. The device can conveniently locate the position of a sample, it is guaranteed that the sample and the forceare coaxial, and the unnecessary errors are avoided. The device is convenient to operate, only a screw needs to be rotated to provide thrust in the clamping process, and the force is larger.

Description

Technical field [0001] The invention relates to the technical field of small sample micro-tensile testing, in particular to a novel small sample micro-tensile testing device and a testing method thereof. Background technique [0002] From the perspective of engineering application and cost, according to traditional test methods, testing the mechanical properties of metal materials requires a large number of repetitive tests. However, the size of conventional samples is too large, which will cause a lot of waste of raw materials for metal samples. Reducing the sample size is conducive to saving metal raw materials, thereby reducing costs. The micro-tensile test method for small specimens can save raw materials and maximize the use of metal raw materials. [0003] From the perspective of local heterogeneity of materials, the existence of porosity or other defects may affect the measured mechanical properties of materials, and the test results are somewhat accidental. The small samp...

AI Technical Summary

Problems solved by technology

[0014] (1) Due to high temperature conditions, creep will inevitably occur in the internal structure of the device, and large deviations will occur after long-term work

[0015] (2) The size of the tensile testing machine required in the existing micro-tensile device for small samples also needs to be reduced, and the cost is high

[0016] The sample size of the existing small-sample micro-tensioning device is still too large to meet the requirements of the coating as a sample, and the device is relatively complicated, and it is inconvenient to disassemble and use

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