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

Abstract:

Article Preview

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)

Edited by:

Zhongning Guo

Pages:

619-623

Citation:

X. D. Wang et al., "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

Export:

Price:

$38.00

[1] ZHAO Junjun, WANG Weixin, CAI Zhihai, ZHANG Ping: Trans Nonferrous Met Soc China, Vol. 16(2006), pp.1523-1527. In Chinese.

[2] CHEN Kanghua, HUANG Lanping, ZHENG Qiang, HU Huawen: Trans Nonferrous Met Soc China, Vol. 15(2005), pp.442-445. In Chinese.

[3] HUANG Jiwu, YIN Zhimin, FANG Jiafang, NIE Bo, WANG Tao: Materials Science, Vol. 546-549(2007), pp.867-870. In Chinese.

[4] Omar Hatamleh, Preet M. Singh, Hamid Garmestani: Corrosion Science, Vol. 51(2009), pp.135-143.

DOI: https://doi.org/10.1016/j.corsci.2008.09.031

[5] Y.E. Wu, Y.T. Wang: Theoretical and Applied Fracture Mechanics, Vol. 54(2009), pp.19-26.

[6] P. Bala Srinivasan, W. Dietzel, R. Zettler J.F. dos Santos,V. Sivan: Materials Science and Engineering, Vol. 392(2005), pp.292-300.

[7] S. Katsas, J. Nikolaou, G. Papadimitriou: Materials and Design, Vol. 28(2007), pp.831-836.

[8] B.T. Lu, Z.K. Chen, J.L. Luo, B.M. Patchett, Z.H. Xu: Electrochimica Acta, Vol. 50(2005), pp.1391-1403.

[9] J. Cwiek: Journal of Materials Processing Technology, Vol. 164-165(2005), pp.1007-1013.

[10] ZHANG Chuanchen, CHEN Furong, Gao yunxi: TransactIions Of the China Welding Institution, Vol. 29(2008), pp.67-70. In Chinese.

[11] Information on http: / www. wolfrobotics. com/ products/ images/ Twin Wire MIG bro.

[12] YANG Li-chun, Gang Tie, LIN San-bao, CUI Hong-bo: The Chinese Journal of Nonferrous Metals, Vol. 14 (2004), pp.259-264. In Chinese.

[13] S.H.C. Park, Y.S. Sato, H. Kokawa: Scripta Mater, Vol. 49 (2003), p.161.

[14] M. Bobby Kannan, V. Raja, A.K. Mukhopadhyay: Scripta Mater, Vol. 51 (2004), p.1075.

[15] SONG Renguo, ZHANG Baojin, ZENG Meiguang: Transactions of the China Welding Institution, Vol. 30 (1997), pp.595-600. In Chinese.

[16] ZENG Meiguang, ZHANG Jinbao, LIU Jun: Journal of Chinese Society for Corrosion and Protection, Vol. 16 (1996), pp.1-7. In Chinese.

[17] M. Bobby Kannan, W. Dietzel, R. Zeng, R. Zettler, J.F. dos Santos: Materials Science and Engineering, Vol. 460-461 (2007), pp.243-250.