Paper Title:
A Study on the SCC Susceptibility of Twin-Wire Metal Inert Gas Arc Welds in 7A52 Al Alloy Plate
  Abstract

7A52 Al alloy plates was welded using twin-wire metal inert gas arc welding (TMW) .Stress corrosion cracking (SCC)behavior of the parent material and the welded specimens was investigated by the slow strain rate tensile(SSRT)test method respectively. Electrochemical impedance spectroscopy (EIS) was conducted to understand electrochemical corrosion behavior of 7A52 Al alloy and its TMW weldment. It was found that the welded specimens exhibited higher SCC susceptibility than the parent materials under SSRT testing in seawater. The EIS result showed that the weld zone exhibited higher corrosion resistance than that of the parent material. Hydrogen embrittlement is a crucial factor that leads to the failure of the welded specimens during SSRT test in seawater.

  Info
Periodical
Advanced Materials Research (Volumes 311-313)
Chapter
Metal Alloy Materials
Edited by
Zhongning Guo
Pages
619-623
DOI
10.4028/www.scientific.net/AMR.311-313.619
Citation
X. D. Wang, R. L. Jia, H. X. Zhang, H. J. Lui, X. W. Zhai, F. R. Chen, "A Study on the SCC Susceptibility of Twin-Wire Metal Inert Gas Arc Welds in 7A52 Al Alloy Plate", Advanced Materials Research, Vols. 311-313, pp. 619-623, 2011
Online since
August 2011
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Price
$32.00
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