In situ test instrument and method for mechanical, electric, thermal and magnetic coupling material properties under composite load mode

Abstract

The invention relates to a composite load mode force-electro-thermal-magnetic coupling material performance in-situ testing instrument and method, belonging to the field of precision scientific instruments. It includes three parts: composite load-multiphysics loading test platform, in-situ monitoring platform and vibration isolation base. The vibration isolation base is mainly used to support the composite load multi-physics loading test platform and in-situ monitoring platform, and provide positioning for their installation. It also provides various precision drive loading components, detection components and in-situ monitoring components during testing. Effective vibration isolation treatment. The in-situ monitoring platform achieves real-time dynamic in-situ monitoring of the microscopic deformation, damage mechanism, microstructure structure changes and performance evolution of material samples under the above complex loading conditions by accurately adjusting the posture of each monitoring module. The advantages are: compact and lightweight structure, optional vacuum chamber to place the main body of the instrument, thereby providing testing environments such as low pressure, vacuum, inert gas, etc. for the material samples to be tested. Highly practical.

Description

technical field [0001] The invention relates to the field of precision scientific instruments, in particular to an in-situ test instrument and method for the performance of a force-electric-thermal-magnetic coupling material in a composite load mode. The in-situ test instrument and method for material microscopic properties under the combined load mode force-electricity-thermal-magnetic multi-physics field coupling loading conditions of the present invention can provide four mechanical loads of "tensile / compressive-low cycle fatigue-torsion-bending" One or more of them can also be used for typical functional materials to carry out microscopic performance tests under the multi-physical field coupling of "stress field-temperature field (high / low temperature)-electric field-magnetic field". Parallel load testing with coexistence of load modes. The in-situ micro-nano indentation test module embedded in the instrument can accurately measure the dynamic evolution of the indentation...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an in-situ test instrument and method for material properties coupled with force, electricity, heat and magnetism in a composite load mode, so as to solve the problem that existing instruments and equipment cannot realize the in-situ test of material properties under the coupling effect of force-electricity-heat-magnetic multi-physics field The problem

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