Paper Title:
Role of Microstructure in Susceptibility of X70 Pipeline Steel to Hydrogen Embrittlement
  Abstract

In order to investigate the susceptibility of steels to hydrogen embrittlement as a function of their microstructure X70 steel was chosen in different conditions: normalized transfer bar, as-received hot rolled strip and heat affected zone (HAZ). Notched and fatigue pre-cracked samples were subjected to electrochemical hydrogen charging to achieve 2 ppm hydrogen content. Three point bend tests were conducted on as-received and hydrogen charged samples. The results showed that HAZ samples are more susceptible to hydrogen embrittlement than the others. This was supported by fracture surface observations.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
162-165
DOI
10.4028/www.scientific.net/MSF.654-656.162
Citation
D. Hejazi, A.J. Haq, N. Yazdipour, D.P. Dunne, F. J. Barbaro, E. V. Pereloma, "Role of Microstructure in Susceptibility of X70 Pipeline Steel to Hydrogen Embrittlement", Materials Science Forum, Vols. 654-656, pp. 162-165, 2010
Online since
June 2010
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Price
$32.00
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