A Study on the SCC Susceptibility of Twin-Wire Metal Inert Gas Arc Welds in 7A52 Al Alloy Plate
| Periodical | Advanced Materials Research (Volumes 311 - 313) |
|---|---|
| Main Theme | Advanced Materials and Processes: ADME 2011 |
| Edited by | Zhongning Guo |
| Pages | 619-623 |
| DOI | 10.4028/www.scientific.net/AMR.311-313.619 |
| Citation | Xiao Dong Wang et al., 2011, Advanced Materials Research, 311-313, 619 |
| Online since | August, 2011 |
| Authors | Xiao Dong Wang, Rui Ling Jia, Hui Xia Zhang, Hua Jian Lui, Xi Wei Zhai, Fu Rong Chen |
| Keywords | Aluminum Alloy, Stress Corrosion Cracking, Twin-Wire Metal Inert Gas Arc Welding |
| Price | US$ 28,- |
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.