理化检验-物理分册2025，Vol.61Issue(5)：78-82,5.DOI:10.11973/lhjy-wl240312
航空零件典型脆性断裂原因
Cause analysis of typical brittle fracture of aviation parts
王强 1林文钦 1王陆增 1曾思学 1李俊文 1丁力钊 1王怡星1
作者信息
- 1. 成都飞机工业(集团)有限责任公司,成都 610091
- 折叠
摘要
Abstract
Brittle fracture is a fracture mode that almost does not produce obvious plastic deformation before fracture,often without any signs,which is extremely harmful to the normal use of parts.The causes of typical brittle fracture of four aviation parts,including stainless steel bolt,side roller,self-locking nut and tee joint are analyzed.The common types of brittle fracture in the manufacturing,assembly and service stages of aviation parts are introduced comprehensively.The methods and auxiliary means to determine brittle fracture were expounded.The root causes of brittle fracture are further analyzed with cases,and the improvement measures to avoid parts failure are summarized and put forward.At the same time,it is proposed that brittle fracture should be objectively understood.Not all brittle fractures are caused by the defects of the parts themselves.The fractured parts should be treated and improved in combination with the causes of fracture and the general rules of failure.关键词
航空零件/脆性断裂/原因分析/改进措施Key words
aviation part/brittle fracture/cause analysis/improvement measure分类
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王强,林文钦,王陆增,曾思学,李俊文,丁力钊,王怡星..航空零件典型脆性断裂原因[J].理化检验-物理分册,2025,61(5):78-82,5.
