Paper Title:
Hydrogen Evolution Behavior in an Al-Mg-Si Alloy Affected by Hydrogen Embrittlement
  Abstract

Hydrogen evolution behavior of an Al-Mg-Si alloy affected by hydrogen embrittlement was investigated using a tensile testing machine equipped with quadruple mass spectrometer in an ultrahigh vacuum chamber. Plate type test pieces were solutionized at 540°C for 1h, quenched in water and then aged at 175°C for 8h or 240h. Some of the aged test pieces were pre-deformed in air with a relative humidity of 90% at a slow strain rate of 8.3x10-7s-1 to introduce hydrogen from the testing atmosphere. As a result of the tensile test with mass spectrometry, it was shown that hydrogen was highly evolved at the moment of fracture. The area fraction of intergranular fracture decreased when the aging condition was changed from peak-aged to over-aged, which was in agreement with the decrease in the amount of hydrogen evolved at the moment of fracture.

  Info
Periodical
Materials Science Forum (Volumes 561-565)
Main Theme
Edited by
Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages
203-206
DOI
10.4028/www.scientific.net/MSF.561-565.203
Citation
K. Horikawa, H. Kobayashi, "Hydrogen Evolution Behavior in an Al-Mg-Si Alloy Affected by Hydrogen Embrittlement", Materials Science Forum, Vols. 561-565, pp. 203-206, 2007
Online since
October 2007
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$32.00
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