文献类型：期刊文献

中文题名：高压换热器U形管管口开裂分析

英文题名：FAILURE ANALYSIS OF U-TUBE IN HIGH PRESSURE HEAT EXCHANGER

作者：何录武[1];陈进[1];谢立奎[2];杨胜林[2]

机构：[1]华东理工大学化机研究所,上海200237;[2]中石化清江石化有限责任公司,淮安223002

年份：2006

卷号：42

期号：7

起止页码：369

中文期刊名：理化检验（物理分册）

外文期刊名：Physical Testing and Chemical Analysis(Part A:Physical Testing)

语种：中文

中文关键词：不锈钢;连多硫酸;应力腐蚀

外文关键词：Stainless steel; Polythionic acid; Stress corrosion

摘要：对高压换热器U型管泄漏进行了化学成分分析、力学性能测试、显微组织和断口的宏微观分析。检验结果显示,换热管材料的化学成分和力学性能符合相关标准的要求,显微组织正常;换热器管口开裂为连多硫酸应力腐蚀开裂。
The analysis of cracking failure for U-tube in high pressure heat exchanger was made by means of Chemical composition analysis, mechanical properties tests, microstructure test, SEM analysis of fracture and energy spectrum analysis of corrosion product. Investigation shows that the chemical composition and mechanics properties of the tube meet the demand of relative standards and the cracking cause for the heat exchanger tube end was stress corrosion cracking in polythionic acid environment.