摘要
采用银离子源对316L奥氏体不锈钢表面进行银离子注入改性,并对其导电和耐腐蚀性能进行了研究。结果表明:注入剂量为0.5×107cm-2时不锈钢表面接触电阻值比注入前降低了81.25%;在双极板模拟环境中,银注入不锈钢后在表面形成了一层有效阻碍腐蚀的新钝化层,银注入剂量为2×107cm-2时,不锈钢在模拟双极板阴、阳极环境下的稳定腐蚀电流密度比注入前分别降低了98.56%和98.32%。
Silver ions were implanted into the surface of the 316L austenitic stainless steel by a silver ion source machine.The conductivity and corrosion resistance of the steel surface were investigated.The results show that the surface contact resistance of stainles steel reduced by 81.25% compared with that of the steel before implantation with the dose of 0.5×107 cm-2.A new passive film was formed on surface of the ion implanted steel in the bipolar plate simulated solutions,which retarded corrosion effectively.With the silver ion implantation dose of 2×107 cm-2,the stable corrosion current density reduced by 98.56% and 98.32% in the bipolar plate simulated cathode and anode environment,respectively.
出处
《机械工程材料》
CAS
CSCD
北大核心
2011年第1期72-75,共4页
Materials For Mechanical Engineering
关键词
离子注入
双极板
耐腐蚀性能
接触电阻
ion implantation
bipolar plate
corrosion resistance
contact resistance
