Improved corrosion resistance of 316LN stainless steel performed by rotationally accelerated shot peening

被引：48
作者：
Chen, Xudong [1 ]
Li, Yusheng [2 ]
Zhu, Yuntian [2 ,3 ]
Bai, Yakui [4 ]
Yang, Bin [1 ]
机构：
[1] Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China
[2] Nanjing Univ Sci & Technol, Nano & Heterogeneous Mat Ctr, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China
[3] North Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA
[4] State Power Investment Corp Res Inst, Inst Nucl Fuel & Mat, Beijing 100083, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2019年 / 481卷
关键词：
Stainless steel; Nanocrystalline; Twin; Corrosion resistance; Passive film; SURFACE NANOCRYSTALLIZATION; BEHAVIOR; PASSIVATION; FILMS; 304-STAINLESS-STEEL; ENHANCEMENT; NUCLEATION; EVOLUTION; CHLORIDE; ALLOY;
D O I：
10.1016/j.apsusc.2019.03.256
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Rotationally accelerated shot peening (RASP) technology was used to produce nanocrystallines and twins on the surface of 316LN stainless steel. Electrochemical corrosion experiments were carried out on the RASP-processed 316LN SS specimens in the 3.5 wt% NaCl solution. Improved passivity and better electronic properties of passive films were observed on the RASP-processed specimens. The experimental results showed that the structure with nanocrystallines and a high density of twins produced by the RASP process can provide more nucleation sites, adhesion work and homogeneous capillary force to improve the uniformity and compactness of the passive film, resulting in a better corrosion resistance.
引用
收藏
页码：1305 / 1312
页数：8
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