不锈钢夹层锅在氯离子环境中的腐蚀及预防措施  

Corrosion Analysis and Preventive Measures of Stainless Steel Steam-jacked Kettle in Chloride Environment

作　　者：李成超 张诚栋 崔云龙 刘华伟 

机构地区：[1]泰安市特种设备检验研究院

出　　处：《化工装备技术》2017年第1期38-39,56,共3页Chemical Equipment Technology

摘　　要：在定期检验过程中发现,材质为SUS304的不锈钢夹层锅存在多处裂纹、点腐蚀、孔蚀等缺陷。通过宏观检测、材质分析等检测方法对其进行腐蚀分析,结果表明,奥氏体不锈钢在拉应力、高温、高浓度氯离子的共同作用下产生应力腐蚀开裂。In the regular inspection, many defects were found in the steam-jacked kettle made of SUS304 stainless steel, such as cracks, spot corrosion, pitting corrosion and so on. Corrosion analysis was carried out by means of macroscopic detection and material analysis. The results showed that stress corrosion cracking appeared in austenitic steel under the combined action of tensile stress, high temperature, and high concentration of chloride ions.

关 键 词：夹层锅 不锈钢 氯离子 拉应力 腐蚀开裂措施 

分 类 号：TS203[轻工技术与工程—食品科学]