Synchrotron radiation in-situ imaging tensile testing machine simulating multiple environments and testing method thereof

A tensile testing machine and multi-environmental technology, applied in the direction of using radiation for material analysis, using stable tension/pressure to test material strength, etc., can solve the problem of low light source brightness, measurement accuracy and detection sensitivity need to be improved, optical signal detection Low signal-to-noise ratio and other issues to achieve the effect of improving accuracy

Active Publication Date: 2017-08-11
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, SEM can only obtain a two-dimensional image of the material surface, but not a three-dimensional image inside the material; and its light source

Method used

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  • Synchrotron radiation in-situ imaging tensile testing machine simulating multiple environments and testing method thereof
  • Synchrotron radiation in-situ imaging tensile testing machine simulating multiple environments and testing method thereof
  • Synchrotron radiation in-situ imaging tensile testing machine simulating multiple environments and testing method thereof

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Embodiment Construction

[0027] The bottom of the testing machine is a cylindrical single-pull base 1 that can rotate freely in 360 degrees. There is a groove under the single-pull base 1, and there is a small protrusion in the groove. The test bench is embedded in the groove under the single-pull base 1. Inside, the small protrusion is embedded in the cross-shaped gap of the test bench, so as to ensure that the single-pull base 1 rotates with the test bench. On the top of the single-pull base 1 is the digital display push-pull gauge 2, which is embedded in the groove on the upper part of the single-pull base 1 and fixed by the tightening screw 3 on the side of the single-pull base 1, and the digital display push-pull gauge 2 2 is also connected with the outer display screen 29 of the digital display push-pull gauge.

[0028] The top of the digital display push-pull gauge 2 is embedded in the groove below the connection platform 6 and fixed by the fastening screw 35 on the side of the connection platf...

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Abstract

The invention discloses a synchrotron radiation in-situ imaging tensile testing machine simulating multiple environments and a testing method thereof and belongs to the field of material tensile testing machine. The material tensile testing machine comprises a rotatable single-pull base, wherein a digital display pull and push dynamometer is arranged above the single-pull base and is fixedly connected with the lower portion of a lower clamp, the upper portion of an upper clamp is fixedly connected to a sleeve, a spring and a sleeve shaft are arranged in the sleeve, the top of the sleeve shaft is connected to the loading connection position of a loading mechanism, and the loading mechanism is provided with a ratchet wheel and a pawl for achieving a self-locking function. The testing machine is further provided with an in-situ imaging system, a humidification device and a temperature control device. The testing machine reasonably applies a dynamical tensile test and a synchrotron radiation imaging technique and conveniently obtains a three-dimensional image of the inside of a material, microstructure change and microcosmic deformation damage of material organization under complicated environments such as high temperature, low temperature, high humidity and rich oxygen can be obtained, and the microstructure morphology and defects of the material can be better observed.

Description

technical field [0001] The invention relates to the field of material tensile testing machines, in particular to a multi-environment simulating synchrotron radiation in-situ imaging tensile testing machine and a testing method thereof. Background technique [0002] For a long time, with the rapid development of science and technology, new materials have been put into use in large quantities, and people have carried out a lot of research on the mechanical properties of tensile fracture of new materials. It is generally believed that the stretching process of materials includes elastic deformation, plastic deformation and fracture. The mechanical properties of materials are affected by many factors, and the mechanical properties will be different in different realities. In order to better explore the mechanical properties of materials in different environments, and then provide reasonable reference data for the application of materials, it is necessary to conduct tensile test...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N23/04
Inventor 吴圣川宋哲张思齐康国政
Owner SOUTHWEST JIAOTONG UNIV
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