Combined effect of resistance spot welding and post-welding sensitization on the degree of sensitization of AISI 304 stainless steel

被引：21
|
作者：
De Tiedra, Pilar [1 ]
Martin, Oscar [1 ]
Lopez, Manuel [1 ]
机构：
[1] Univ Valladolid, Dept CMeIM EGI ICGF IM IPF, Escuela Ingn Ind, E-47011 Valladolid, Spain
来源：
CORROSION SCIENCE | 2011年 / 53卷 / 08期
关键词：
Stainless steel; Polarization; Intergranular corrosion; Welding; AUSTENITIC STAINLESS-STEEL; ARTIFICIAL NEURAL-NETWORKS; NUMBER PREDICTION MODEL; INTERGRANULAR CORROSION; WELDED-JOINTS; ELECTROCHEMICAL MINICELL; MECHANICAL-PROPERTIES; REACTIVATION TEST; FATIGUE-STRENGTH; SHEETS;
D O I：
10.1016/j.corsci.2011.05.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work studies the combined effect of resistance spot welding (RSW) and post-welding sensitization on the degree of sensitization (DOS) of AISI 304 stainless steel (SS) by using EPR and DLEPR tests. The combined effect of RSW and post-welding sensitization at 750 degrees C gives rise to an overall DOS that: (i) is lower than that of the state without prior welding: (ii) that decreases initially with increasing sensitization time but then increases. This behaviour is due to the fact that the interdendritic corrosion (IDC) located in the weld metal decreases with increasing sensitization time. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2670 / 2675
页数：6
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