Effects of surface nanocrystallization on the oxide film formed on 316LN stainless steel in a high-temperature aqueous environment

被引：3
作者：
Chen, Xudong [1 ,2 ]
Dai, Xin [3 ]
Qian, Hongchang [1 ,2 ]
Yang, Bin [3 ]
Zhao, Jiqing [4 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Natl Mat Corros & Protect Data Ctr, Beijing, Peoples R China
[2] Univ Sci & Technol Beijing, Shunde Grad Sch, BRI Southeast Asia Network Corros & Protect MOE, Foshan, Guangdong, Peoples R China
[3] Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China
[4] Cent Iron & Steel Res Inst, Inst Special Steels, Beijing, Peoples R China
来源：
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2022年 / 73卷 / 01期
关键词：
high-temperature aqueous; nanocrystallization; oxide film; stainless steel; MICROSTRUCTURAL EVOLUTION; OXIDATION BEHAVIOR; CORROSION; 304-STAINLESS-STEEL; CHROMIUM; IRON;
D O I：
10.1002/maco.202112652
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A newly developed technology, rotationally accelerated shot peening (RASP), was used to produce the nanocrystals on the surface of 316LN stainless steel. The effect of surface nanocrystallization on the oxide film properties of the steel in a high temperature and high-pressure aqueous environment was studied. It was found that the outer layer of the oxide film consisted of NiFe2O4 with a loose spinel structure. The inner layer distributed tiny Cr2O3 particles compactly. The oxide films that grew on the RASP-treated 316LN showed thicker and denser with higher corrosion resistance than on the as-received steel. The nanostructures produced by RASP enhanced the formation of the superior oxide film. However, the deformation defects caused by RASP were harmful to the corrosion resistance. The results in this paper provide an easy way to enhance the corrosion resistance of the steel served in a high-temperature aqueous environment.
引用
收藏
页码：125 / 133
页数：9
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