PH13-8Mo不锈钢在3.5% NaCl溶液中的耐蚀性能
Corrosion Resistance of PH13-8Mo Stainless Steel in 3.5% NaCl Solution
摘 要
采用动电位阳极扫描极化曲线研究了PH13-8Mo和17-4PH两种沉淀硬化不锈钢在3.5% NaCl溶液中的点蚀电位。通过分析PH13-8Mo的金相组织、微观形貌和能谱结果研究了PH13-8Mo的耐海水腐蚀机理。结果表明, PH13-8Mo不锈钢的点蚀电位、钝化区范围平均值大于17-4PH不锈钢, PH13-8Mo不锈钢的耐海水腐蚀的性能大于17-4PH不锈钢。经时效处理的PH13-8Mo不锈钢金相组织为回火马氏体+弥散析出相, 析出相和基体中均含有足够的钝化元素铬、镍、钼, 三者总量百分比超过20%,整体耐蚀性良好。
点蚀电位
耐腐蚀
PH13-8Mo stainless steel
pitting potential
corrosion resistance
Abstract
The pitting potentials of precipitation hardening stainless steels PH13-8Mo and 17-4PH in simulated sea water of 3.5% NaCl solution were investigated by means of potentiodynamic anodic polarization curves. The mechanism of corrosion resistance of stainless steel PH13-8Mo in seawater was analyzed by metallographic phase observe, scanning electron microscopy(SEM)and energy disperse spectroscopy. The results show that the average pitting potential and passive region of PH13-8Mo steel were bigger than those of steel 17-4PH, indicating that the corrosion resistance of PH13-8Mo steel is better than that of 17-4PH steel. The microstructure of aged steel PH13-8Mo is tempered martensite and massive precipitated phases. The good corrosion resistance of PH13-8Mo steel comes from enough passive elements of Cr, Ni and Mo which total percentage over 20% in its precipitated phases and matrix.
中图分类号 TG174
所属栏目 试验研究
基金项目 上海市科委科研计划(11DZ1110100)
收稿日期 2013/5/23
修改稿日期
网络出版日期
作者单位点击查看
备注黄春波,高级工程师,硕士,
引用该论文: HUANG Chun-bo,XUE Chun,FU Yi-Fang,ZHANG Zhan,WANG Ling-qi,ZHOU Yi-ming. Corrosion Resistance of PH13-8Mo Stainless Steel in 3.5% NaCl Solution[J]. Corrosion & Protection, 2013, 34(9): 800
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】韩雄,刘强. PH13-8Mo插铣铣削力建模与分析[J]. 航空制造技术,2010,5:72-74,80.
【2】李志宏. 沉淀硬化不锈钢的热处理及性能[J]. 国外金属热处理,1998,18:13-16.
【3】孙志华, 张晓云, 汤智慧,等. 马氏体沉淀硬化不锈钢0Cr13Ni8Mo2Al的腐蚀性能[J]. 腐蚀与防护,2006,27(12): 629-631.
【4】徐增华. 金属耐蚀材料第八讲沉淀硬化不锈钢[J]. 腐蚀与防护,2001,22(8):367-370.
【5】黄嘉琥,吴剑. 耐腐蚀铸锻材料应用手册[M]. 北京:机械工业出版社,1991.
【2】李志宏. 沉淀硬化不锈钢的热处理及性能[J]. 国外金属热处理,1998,18:13-16.
【3】孙志华, 张晓云, 汤智慧,等. 马氏体沉淀硬化不锈钢0Cr13Ni8Mo2Al的腐蚀性能[J]. 腐蚀与防护,2006,27(12): 629-631.
【4】徐增华. 金属耐蚀材料第八讲沉淀硬化不锈钢[J]. 腐蚀与防护,2001,22(8):367-370.
【5】黄嘉琥,吴剑. 耐腐蚀铸锻材料应用手册[M]. 北京:机械工业出版社,1991.
相关信息
