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炼油厂制氢装置奥氏体不锈钢变径管的应力腐蚀破坏

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Indexed by:期刊论文

Date of Publication:2005-01-01

Journal:理化检验-物理分册

Included Journals:ISTIC

Volume:41

Issue:z1

Page Number:306-309

ISSN No.:1001-4012

Key Words:奥氏体不锈钢;失效;应力腐蚀

Abstract:对炼油厂制氢装置低温段奥氏体不锈钢的变径管所出现的破裂失效原因进行了分析.结果表明变径管失效是应力腐蚀引起的.应力腐蚀裂纹起源于变径管焊缝内表面热影响区,变径管加工过程中所形成的不均匀粗大组织是促进应力腐蚀的主要原因.

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