南华大学学报（自然科学版）2016，Vol.30Issue(4)：44-48,5.
缠绕气瓶横向爆裂失效分析
Failure Analysis on Transverse Blasting of Wrapped Cylinder
摘要
Abstract
This paper aims to examine and analyze a sample of wrapped cylinder’ s abnormal transverse blasting produces by a company.It uses JSM￣6490LA scanning electron microscope and OLYMPUS GX51 inverted microscope to detect the macroscopic morphology and micro￣structure. At the same time, it applies SPECTRO MAXx ( LMX16 ) direct reading spectrometer to analyze chemical constituent.Moreover,mechanical properties are also tested by WE￣B300 digital hydraulic tensile testing machine and HR￣150A Rockwell Hardness Tester.These experiments and analysis results show that the reason of abnormal cylinder bursting is that the cooling rate is too low when the initiation site is quenching,and this gen￣erates a certain amount of upper bainite,which brings down the strength and elongation in that part.In addition,the existence of slag inclusion inside splits the matrix continuity,and reduces the material tensile intensity,eventually the wrapped cylinder becomes invalid.关键词
缠绕气瓶/裂纹/失效分析Key words
wrapped cylinder/crack/failure analysis分类
机械制造引用本文复制引用
丰振东,樊湘芳,赵健民,胡汝骞..缠绕气瓶横向爆裂失效分析[J].南华大学学报（自然科学版）,2016,30(4):44-48,5.基金项目
衡阳市产学研合作计划项目(2016KC11)；湖南省重点学科建设项目(湘教发〔2011〕76号)；湖南省质量工程基金资助项目(湘教通〔2014〕272号) （2016KC11）
