Materials failure analysis method

Abstract

The invention a materials failure analysis method, comprising the following steps: acquiring a failure background of a failed part; inspecting appearance of the failed part to obtain failure information of the failed part; searching a materials failure analysis database for materials failure data matching with the failure background / or failure information to obtain estimated failure causes for the failed part; viewing a fracture of the failed part according to the estimated failure causes to obtain a failure mode of the failed part; comparatively analyzing the failed part and a non-failed part via a materials analysis method to obtain comparative results; according to the failure mode and the comparative results, determining failure causes for the failed part. It is possible to increase efficiency and level of a materials failure analyst by using the invention.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a material failure analysis method. Background technique [0002] At present, some large enterprises and scientific research institutes have established or are establishing their own material failure analysis databases, for example: the "oil well drill pipe material failure safety accident case database" developed by the China National Petroleum Corporation Pipe Research Institute; the "material corrosion accident database" developed by Beijing University of Chemical Technology "Database"; "Database of Major Accident Cases Caused by Metal Material Failure" established with the support of the Ministry of Science and Technology Fundamental Conditions Platform Project "National Analysis and Testing Center Collaboration Platform and Emergency Analysis and Testing System". In addition, many third-party testing and analysis institutions also have their own failure data sharing cases,...

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Problems solved by technology

[0003] However, the above-mentioned databases are established for their respective industries, and it is difficult to apply them to other technical fields, and for reasons of confidentiality, some data are not disclosed to the public

Taking the automobile industry as an example, there are tens of thousands of metal parts in automobiles, and there are many kinds of them. The service environments are quite different, and the failure forms are also various. The knowledge involved is also very wide. In the process of failure analysis, the failure analysis The requirements for personnel are high. In reality, due to the individual differences of failure analysis personnel, the efficiency of material failure analysis is not high, and the analysis level is different.

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