Influence of nitrogen on corrosion behaviour of high nitrogen martensitic stainless steels manufactured by pressurized metallurgy

被引：136
作者：
Feng, Hao [1 ]
Jiang, Zhouhua [1 ]
Li, Huabing [1 ]
Lu, Pengchong [1 ]
Zhang, Shucai [1 ]
Zhu, Hongchun [1 ]
Zhang, Binbin [1 ]
Zhang, Tao [2 ]
Xu, Dake [2 ]
Chen, Zhigang [3 ,4 ]
机构：
[1] Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China
[2] Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China
[3] Univ Southern Queensland, Ctr Future Mat, Springfield, Qld 4300, Australia
[4] Univ Queensland, Mat Engn, Brisbane, Qld 4072, Australia
来源：
CORROSION SCIENCE | 2018年 / 144卷
基金：
中国国家自然科学基金;
关键词：
Stainless steel; Polarization; XPS; Pitting corrosion; Passive films; PITTING CORROSION; MECHANICAL-PROPERTIES; PASSIVE FILMS; INTERGRANULAR CORROSION; MICROSTRUCTURE; RESISTANCE; DUPLEX; 316L; TEMPERATURE; MOLYBDENUM;
D O I：
10.1016/j.corsci.2018.09.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effect of nitrogen on microstructure and corrosion behaviour of high nitrogen martensitic stainless steels manufactured by pressurized metallurgy was investigated by microscopy, electrochemical and spectroscopy analyses. Results indicated that increasing nitrogen content significantly enhanced the corrosion properties of martensitic stainless steels, while excess nitrogen deteriorated the corrosion resistance. The impacts of increased nitrogen content could be summarized as three aspects: the change of precipitation content and conversion of main precipitates from M23C6 to M2N; the enhanced protection performance of passive film by enrichment of Cr, especially Cr2O3 and CrN; the improved repassivation ability by increased nitrogen content in solid solution.
引用
收藏
页码：288 / 300
页数：13
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