摘要
通过化学浸泡法,结合彩色金相技术,采用腐蚀失重试验、扫描电镜原位分析、能谱分析等,对2205双相不锈钢(2205DSS)在含溴醋酸环境中的腐蚀行为进行研究.结果 表明:在含溴的醋酸环境中,2205双相不锈钢发生了奥氏体的选择性腐蚀.2205DSS的腐蚀速率随着温度和Br-量的增加而增加,随着浸泡时间的延长而减小.
Corrosion behavior of 2205 duplex stainless steel(2205 DSS)in a bromine-containing acetic acid environment was studied by chemical immersion method,combined with color metallographic technology,corrosion weight loss test,scanning electron microscopy in-situ analysis,and energy spectrum analysis.The results show that the selective corrosion of austenite occurred in 2205 DSS in the bromine-containing acetic acid environment.The corrosion rate of 2205 DSS increased with increasing temperature and Br-amount,and decreased with increasing immersion time.
作者
岑威威
姜勇
陈佳栋
陶平
巩建鸣
CEN Weiwei;JIANG Yong;CHEN Jiadong;TAO Ping;GONG Jianming(School of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211816,China;Key Lab of Design and Manufacture of Extreme Pressure Equipment,Nanjing 211816,China)
出处
《腐蚀与防护》
CAS
北大核心
2020年第3期32-36,共5页
Corrosion & Protection
基金
国家自然科学基金(51505477)。
关键词
双相不锈钢
溴离子
醋酸
选择性腐蚀
duplex stainless steel(DSS)
bromine ion
acetic acid
selective corrosion
