Influence of strain-induced martensite in the anodic dissolution of austenitic stainless steels in acid medium

被引：50
|
作者：
Alvarez, S. M. [1 ]
Bautista, A. [1 ]
Velasco, F. [1 ]
机构：
[1] Univ Carlos III Madrid, Mat Sci & Engn Dept IAAB, Madrid, Spain
来源：
CORROSION SCIENCE | 2013年 / 69卷
关键词：
Stainless steel; Electrochemical calculation; Polarization; Potentiostatic; SEM; Acid corrosion; CORROSION BEHAVIOR; SENSITIZATION; RESISTANCE; REINFORCEMENTS; DEFORMATION; INCLUSIONS; ALKALINE; JOINTS; CU;
D O I：
10.1016/j.corsci.2012.11.033
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The anodic dissolution of austenitic stainless steel bars in an acid medium (0.5 M HCl + 2 M H(2)SO4) under different polarizations is studied. The material comes from bars formed by hot working (HW) and by cold working (CW). UNS S30403 and S31603 grades are considered. The determining effect of alloying elements and working method are proved. The morphology of the attack at different anodic potentials is analyzed. The important influence of the amount and distribution of strain-induced martensite on corrosion is demonstrated. The effect of the martensite on the anodic polarization curves is quantified using specifically designed software. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：130 / 138
页数：9
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