Effect of partial replacement of carbon by nitrogen on intergranular corrosion behavior of high nitrogen martensitic stainless steels

被引：0

作者：

Wei-Chao Jiao ^{[1
]}

Hua-Bing Li ^{[1
]}

Jing Dai ^{[1
]}

Hao Feng ^{[1
]}

Zhou-Hua Jiang ^{[1
]}

Tao Zhang ^{[2
]}

Da-Ke Xu ^{[2
]}

Hong-Chun Zhu ^{[1
]}

Shu-Cai Zhang ^{[1
]}

机构：

[1] School of Metallurgy, Northeastern University

[2] Corrosion and Protection Division, Shenyang National Laboratory for Materials Science, Northeastern University

来源：

JournalofMaterialsScience&Technology | 2019年 / 35卷 / 10期

基金：

中国国家自然科学基金;

关键词：

High nitrogen martensitic stainless steels; Precipitation; Intergranular corrosion; DL-EPR;

D O I：

暂无

中图分类号：

TG142.71 [不锈钢、耐酸钢];

学科分类号：

080502 ;

摘要：

The microstructure evolution and intergranular corrosion（IGC） behavior of high nitrogen martensitic stainless steels（MSSs） by partial replacing C by N were investigated by using microscopy, X-ray diffraction, nitric acid tests and double-loop electrochemical potentiokinetic reactivation（DL-EPR） tests. The results show that the partial replacement of C by N first reduces and then increases the size and content of precipitates in high nitrogen MSSs, and converts the dominant precipitates from M;C;to M;N,furthermore first improves and then deteriorates the IGC resistance. The high nitrogen MSS containing medium C and N contents provides good combination of mechanical properties and IGC resistance.

引用

页码：2357 / 2364

页数：8

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