The effect of η-Ni3Ti precipitates and reversed austenite on the passive film stability of nickel-rich Custom 465 steel

被引：76
|
作者：
Wang, Li [1 ]
Dong, Chaofang [1 ]
Yao, Jizheng [1 ]
Dai, Zongbiao [2 ]
Man, Cheng [1 ,3 ]
Yin, Yupeng [1 ]
Xiao, Kui [1 ]
Li, Xiaogang [1 ]
机构：
[1] Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, Key Lab Corros & Protect MOE, Inst Adv Mat & Technol, Beijing 100083, Peoples R China
[2] Tsinghua Univ, Key Lab Adv Mat, Minist Educ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China
[3] Ocean Univ China, Sch Mat Sci & Engn, Qingdao 266100, Shandong, Peoples R China
来源：
CORROSION SCIENCE | 2019年 / 154卷 / 178-190期
基金：
中国国家自然科学基金;
关键词：
Stainless steel; AFM; TEM; Passive films; DUPLEX STAINLESS-STEEL; PITTING CORROSION; ELECTROCHEMICAL-BEHAVIOR; LEAN DUPLEX; MICROSTRUCTURE; RESISTANCE; TEMPERATURE; DEFORMATION; MARTENSITE; MECHANISM;
D O I：
10.1016/j.corsci.2019.04.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The multiple effects of eta-Ni3Ti precipitates and reversed austenite on the passive film stability of nickel-rich Custom 465 steel were studied. The results showed that with an increase in tempering temperature, the eta-Ni3Ti precipitates gradually coarsened. The Volta potential of the eta-Ni3Ti/matrix interface was approximately 30 mV lower than that of the precipitates, which decreased the passive film stability. The volume of reversed austenite gradually increased at higher tempering temperatures. The Volta potential of the reversed austenite was 14 mV higher than that of the martensite, which enhanced the passive film stability and slightly increased the pitting corrosion resistance.
引用
收藏
页码：178 / 190
页数：13
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