Microstructural study and electrochemical behavior of low alloy steel weldment

被引：33

作者：

Deen, K. M. ^{[1
]}

Ahmad, R. ^{[1
]}

Khan, I. H. ^{[2
]}

Farahat, Z. ^{[3
]}

机构：

[1] Univ Punjab, Dept Met & Mat Engn, Lahore 54590, Pakistan

[2] Univ Punjab, Inst Chem Engn & Technol, Lahore 54590, Pakistan

[3] Dalhousie Univ, Dept Proc Engn & Appl Sci, Halifax, NS B3J 2X4, Canada

来源：

MATERIALS & DESIGN | 2010年 / 31卷 / 06期

关键词：

CORROSION;

D O I：

10.1016/j.matdes.2010.01.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Submerged arc welding (SAW) was applied to SA516 (Grade 70) pressure vessel and boiler steel. The microstructural and electrochemical corrosion study of base metal (BM), weld zone (WZ) and heat affected zone (HAZ) was carried out to understand the effect of welding cycle by optical microscopy, X-ray diffraction (XRD), potentiodynamic polarization and linear polarization resistance (LPR) method to correlate corrosion kinetic parameters with microstructural changes in tap water and 0.5% (w/v) NaCl solution under plain and aeration conditions at room temperature. From microstructural study, the morphology of ferrite in WZ and HAZ showed different electrochemical behavior and corrosion rate than that of BM. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：3051 / 3055

页数：5

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