Effect of applied stress and microstructure on sulfide stress cracking resistance of pipeline steels subject to hydrogen sulfide

Zhao, Ming-Chun, Liu, Ming, Atrens, Andrej, Shan, Yi-Yin and Yang, Ke (2008) Effect of applied stress and microstructure on sulfide stress cracking resistance of pipeline steels subject to hydrogen sulfide. Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing, 478 1-2: 43-47. doi:10.1016/j.msea.2007.05.067


Author Zhao, Ming-Chun
Liu, Ming
Atrens, Andrej
Shan, Yi-Yin
Yang, Ke
Title Effect of applied stress and microstructure on sulfide stress cracking resistance of pipeline steels subject to hydrogen sulfide
Journal name Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing   Check publisher's open access policy
ISSN 0921-5093
Publication date 2008-04-15
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.msea.2007.05.067
Volume 478
Issue 1-2
Start page 43
End page 47
Total pages 5
Editor G. Kostorz
M. Kato
Place of publication Lausanne, Switzerland
Publisher Elsevier S.A.
Collection year 2009
Language eng
Subject 091207 Metals and Alloy Materials
291400 Materials Engineering
C1
850304 Oil and Gas Refining
Abstract Effects of applied stress and microstructure on sulfide stress cracking resistance of pipeline steels subject to hydrogen sulfide were investigated by the single-edge notched tensile method using a microalloyed steel and a non-microalloyed steel. The failure time increased with the decreasing applied stress, and finally the threshold stress intensity factor was calculated for acicular ferrite (AF) and ferrite-pearlite (FP) in these two steels. The strength was not the dominant factor for the SSC, and aged microalloyed AF had the best SSC resistance in coincidence with the highest strength. The SSC resistance in sort ascending was non-microalloyed AF, non-microalloyed FP, microalloyed FP, microalloyed AF and aged microalloyed AF. The SSC was explained from hydrogen penetration and microstructural characteristic. The localized hydrogen concentration was enhanced by applied stress. The higher the applied stress, the more easily the SSC occurred. Carbonitrides and pinned dislocations contributed in better SSC resistance.
Keyword Pipeline steel
Microstructure
Sulfide stress cracking
Hydrogen trap
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Mechanical & Mining Engineering Publications
ERA 2012 Admin Only
 
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Created: Wed, 04 Mar 2009, 15:52:15 EST by Sally Beard on behalf of School of Mechanical and Mining Engineering