Effects of surface treatments on the corrosion and erosion-corrosion of 304 stainless steel in 3.5% NaCl solution

被引：105
|
作者：
Zheng, Z. B. [1 ,2 ]
Zheng, Y. G. [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China
[2] Guangdong Inst Mat & Proc, 363 Changxing Rd, Guangzhou 510650, Guangdong, Peoples R China
来源：
CORROSION SCIENCE | 2016年 / 112卷
基金：
中国国家自然科学基金;
关键词：
Stainless steel; Erosion; Polarization; Passive films; 316L STAINLESS-STEEL; CRITICAL PITTING TEMPERATURE; NITRIC-ACID PASSIVATION; SLURRY EROSION; LOCALIZED CORROSION; ENHANCED CORROSION; RESISTANCE; IMPINGEMENT; BEHAVIOR; FILMS;
D O I：
10.1016/j.corsci.2016.09.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effects of citric acid treatment, nitric acid treatment and potentiostatic treatment on the corrosion resistance and erosion-corrosion behavior of 304 stainless steel in 3.5 wt.% NaCl solution containing 2 wt.% sand particles have been investigated by electrochemical methods. The result indicates that all treatments contribute to a significant improvement of corrosion resistance due to the formation of a Cr oxide-rich passive film. However, only citric acid treatment increases the critical flow velocity and erosion-corrosion resistance of 304 stainless steel under impingement. Passive film formed on the nitric acid treated stainless steel is easily destroyed by sand particles. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：657 / 668
页数：12
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