金属波纹管疲劳失效原因分析  

Fatigue Failure Analysis of Metal Bellows

作　　者：张秀华[1] 钱江[1] 宋林红[1] 张文良[1] 王雪[1] 高爽 马俊铁 ZHANG Xiu-hua;QIAN Jiang;SONG Lin-hong;ZHANG Wen-liang;WANG Xue;GAO Shuang;MA Jun-tie(Shenyang Institute of Instrumentation Science Limited,Shenyang 110043,Liaoning,China)

机构地区：[1]沈阳仪表科学研究院有限公司,辽宁沈阳110043

出　　处：《阀门》2022年第2期157-160,共4页VALVE MAGAZINE

基　　金：国家重点研发计划“制造基础技术与关键部件”重点专项,项目编号:2018YFB2004002。

摘　　要：针对试验过程中金属波纹管的泄露情况,对试件依次进行宏观检测、μ-CT检测、裂纹观察、断口观察及能谱分析、金相观察及显微硬度测试。根据观察及检测结果,分析得出金属波纹管发生泄露的主要原因可能为焊缝附近波纹管上存在微裂纹,为其他波纹管的泄露分析提供参考依据。In view of the leakage of metal bellows in the test process,the specimens were tested successively by macro detection,μ-CT detection,crack observation,fracture observation,energy spectrum analysis,metallographic observation and microhardness test.According to the observation and detection results,the main reason for the leakage of metal bellows may be the existence of microcracks on the bellows near the weld line,which provides reference for the leakage analysis of other bellows.

关 键 词：金属波纹管 微裂纹 应力腐蚀 泄漏 

分 类 号：TH134[机械工程—机械制造及自动化]