某酸奶厂配料罐304不锈钢夹套底部材料的失效分析

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英文篇名：Failure Analysis of the Bottom Material of the Mixing Tank in the Yoghurt Factory 作者：刘威 ; 孙茜 英文作者：LIU Wei;SUN Xi;School of Mechanical Engineering,University of Shanghai for Science and Technology; 关键词：304不锈钢配料罐 ; 应力腐蚀开裂 ; 失效分析 ; 措施 英文关键词：304 stainless steel tanks;;stress corrosion cracking;;failure analysis;;measures 中文刊名：CLBH 英文刊名：Materials Protection 机构：上海理工大学机械工程学院; 出版日期：2019-05-15 出版单位：材料保护 年：2019 期：v.52;No.484 语种：中文; 页：CLBH201905036 页数：6 CN：05 ISSN：42-1215/TB 分类号：156-161

摘要

某酸奶厂二次配料罐304不锈钢夹套底部出现开裂现象,影响了工厂的正常运行。通过观察裂纹宏观形貌、裂纹金相特征、断口形貌以及断口腐蚀产物能谱分析及应力腐蚀敏感性试验等分析了开裂原因。结果表明:配料罐夹套开裂是由奥氏体不锈钢的应力腐蚀造成的;根据事故发生的原因,提出了返修和消除缺陷的方法。
        The crack appeared at the bottom of the formulating tank in a factory. It had a bad effect on the normal operation of the factory. The cause of the accident was analyzed by observation of macro cracks,metallurgical characteristics and fracture morphology,EDS analysis of corrosion product of crack and fracture and stress corrosion cracking susceptibility testing. Results showed that the accident was caused by the stress corrosion cracking of austenitic stainless steel. Furthermore,suggestions or measures to prevent the similar accident from happening again were provided,based on the causes of the accident.

引文

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