Volume 24 Issue 3
Jun.  2009
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GAO Jian-zhong, WANG Chun-fang, WANG Zhang-an, CHEN Hong-da, ZHANG Hong-bo, YANG Zhuan-zhao. Strain Aging Behavior of High Strength Linepipe Steel[J]. Development and Application of Materials, 2009, 24(3): 86-90. DOI: 10.19515/j.cnki.1003-1545.2009.03.021
Citation: GAO Jian-zhong, WANG Chun-fang, WANG Zhang-an, CHEN Hong-da, ZHANG Hong-bo, YANG Zhuan-zhao. Strain Aging Behavior of High Strength Linepipe Steel[J]. Development and Application of Materials, 2009, 24(3): 86-90. DOI: 10.19515/j.cnki.1003-1545.2009.03.021
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Strain Aging Behavior of High Strength Linepipe Steel

  • 1. Tubular Goods Research Center of CNPC, Xi'an 710065, China;

  • 2. Mechanical Factory of Tuha Oilfield Company of PetroChina, Hami 839009, China

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  • Received Date: December 17, 2008
  • Available Online: March 29, 2024
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    • Abstract
  • Strain aging effect is likely to bring about increase of yield strength and yield-to-tensile ratio of linepipe steel as well as significant yield point elongation on stress-strain curve.The manufacture and application of line pipe and steel were investigated and it is pointed out that strain aging is harmful in most cases such as the quality control during pipe manufacture,butt welding and pipeline service.Measures such as lowering temperature of specimens,preparation,controlling heating temperature and time of coating,lowering C and N content in linepipe steel and developing two-phase steels as well as performing on-line heat treatment just after accelerating cooling are helpful to minimize strain aging effect.Finally,the characterization parameters of strain aging effect for linepipe steel were suggested.
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