Paper Title:
Microstructure and Corrosion Behavior of Cast A356 and Wrought AA6061 Aluminium Alloy Welds
  Abstract

In this work, it was intended to improve the corrosion resistance of welds of A356 and AA6061 by adopting mainly a special welding techniques, viz., pulsed current gas tungsten arc welding (PCGTAW), electron beam welding (EBW) and friction stir welding (FSW). It was found that the corrosion resistance of A356 and AA6061 welds could be improved by PCGTAW technique rather than continuous current gas tungsten arc welding (CCGTAW). It can be further improved by using electron beam welding. Improved corrosion resistance in A356 welds could be obtained by selecting T6 temper rather than as cast condition. In the case of AA6061, improved corrosion resistance was achieved by selecting T4 temper rather than T6 temper. As for as the welding techniques, friction stir welding (FSW) is useful than fusion welding techniques like CCGTAW,PCGTAW and EBW for improving the corrosion resistance of both the welds.

  Info
Periodical
Edited by
Atsushi Suzuki and G. Sundararajan
Pages
37-42
DOI
10.4028/www.scientific.net/AMR.117.37
Citation
K.R. Kumar, G. M. Reddy, K. S. Rao, "Microstructure and Corrosion Behavior of Cast A356 and Wrought AA6061 Aluminium Alloy Welds", Advanced Materials Research, Vol. 117, pp. 37-42, 2010
Online since
June 2010
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$32.00
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