SUS439M在汽车排气系统防腐中的应用研究  

Application Study of SUS439M in the Anticorrosion of Automobile Exhaust System

作　　者：余勇 黄平 范梅梅 Yu Yong;Huang Ping;Fan Meimei(Chang＇an Automobile Stock Co., Ltd., Chongqing, 401120, China)

机构地区：[1]重庆长安汽车股份有限公司,重庆401120

出　　处：《上海涂料》2018年第2期13-17,共5页Shanghai Coatings

基　　金："十二五"科技支撑计划项目(2011BAK10B05;2012BAD29B05);质监总局公益项目(2011IK260)

摘　　要：通过晶间腐蚀试验、电化学试验、循环腐蚀试验,对SUS439M材料的腐蚀特性进行研究。采用静态中性盐雾试验、搭载实车路试试验,对SUS439M材料进行防腐性能研究和评价,并对路试试验后的点蚀坑深度进行测量和分析。结果表明,SUS439M能够满足长安某低端车型的防腐设计要求。The corrosion characteristics of SUS439 M were studied by intergranular corrosion test,electrochemical test and cyclic corrosion test. The static neutral salt spray test and the real vehicle road test were carried out to study and evaluate the corrosion resistance of the SUS439 M,and the corrosion pit depth after the road test was measured and analyzed. The results showed that SUS439 M could meet the anti-corrosion design requirements of low-end models of Chang＇an.

关 键 词：SUS439M 腐蚀特性 中性盐雾试验 路试试验 汽车排气系统 

分 类 号：TQ628.3[化学工程—精细化工]