Metal micromechanical property high-flux statistical characterization method

Abstract

The invention discloses a metal micromechanical property high-flux statistical characterization method which comprises the following steps of grinding and polishing a metal sample until the mirror reflection finish meets the test requirement, marking the position coordinates of the to-be-detected areas on the metal sample by using a microhardness tester to ensure the comparison of the same to-be-detected areas, carrying out isostatic pressing strain test on the to-be-tested area by utilizing an isostatic pressing technology, and comparing high-flux characterization of components, tissue structures, microdefects and surface three-dimensional shapes of the metal samples before and after isostatic pressing strain to obtain full-view-field cross-scale high-flux statistical characterization of the micromechanical property uniformity of the metal samples. According to the metal micromechanical property high-flux statistical characterization method, high-flux characterization of sample components, tissue structures, microdefects and surface three-dimensional morphology is combined, screening and characterization of weak areas of the mechanical properties of the material are facilitated, and accurate quantitative data are provided for material quality evaluation and service safety evaluation.

Description

technical field [0001] The invention relates to the technical field of high-throughput characterization of metal materials, in particular to a high-throughput statistical characterization method for metal micromechanical properties. Background technique [0002] Metal materials are key component materials supporting important fields such as national defense construction, aerospace, nuclear industry, and infrastructure construction. The failure behavior of metal materials brings huge hidden dangers to service safety, and also brings other potentially unpredictable hazards. For example, the existence of microcracks, inclusions, micropores and other types of defects in materials may lead to weak and non-uniform distribution of micromechanical properties in local areas of metal materials. In the actual service process, the weak micromechanical properties of the material may first initiate and propagate cracks, and then may cause failure behaviors such as material fracture. Ther...

AI Technical Summary

Problems solved by technology

However, there is currently no method based on the principle of isostatic pressing, combined with the characterization of composition, microstructure, microscopic defects, and surface three-dimensional morphology, to obtain full-field cross-scale high-throughput screening and characterization of the micromechanical properties of metal materials.

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