摘要
研究了微量元素含量不同的1Cr18Ni9Ti、304、316L三种奥氏体不锈钢的耐局部腐蚀性能,包括晶间腐蚀、点蚀和应力腐蚀。结果表明,Ti元素的添加和较低的含C量都能改善抗晶间腐蚀性能;Cr和N含量最高的固溶态304不锈钢最耐点蚀;Ni含量最高的固溶态316L在42%沸腾氯化镁溶液中抗应力腐蚀性能最优。
Three kinds of austenitic steels 1Cr18Ni9Ti, 304 and 316L all contain different minor elements. The localized corrosion behavior of them was comparatively investigated, including intergranular corrosion, pitting corrosion and stress corrosion. Results show that the addition of Ti and the low C content are beneficial to the enhancement of intergranular corrosion resistance of the steel. Among others, the solution treated 304 steel has the best pitting corrosion resistance owing to the highest content of Cr and N, while 316L steel has the best stress corrosion resistance in 42% boiling MgCl2 because of its high Ni content.
作者
孙京丽
邹丹
金晶
李莉
刘海英
SUN Jingli ZOU Dan JIN Jing LI Li LIU Haiying(Shanghai Aerospace Equipment Manufacturer, Shanghai 200245, China Shanghai Spaceflight Precision Machinery Institute, Shanghai 201600, China)
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2017年第9期666-670,665,671,共7页
Chinese Journal of Materials Research
基金
上海市浦江人才计划(15PJ1433600)
中国航天科技集团公司第八研究院技术基础项目~~
关键词
材料失效与保护
局部腐蚀
动电位法
硫酸.硫酸铜腐蚀法
慢应变速率法
微量元素
materials failure and protection, localized corrosion, potentiodynamic polarization technique, intergranular corrosion test, slow strain rate test, minor elements
