Effect of Structure Pattern on the Performance of X80 Pipeline Steel

摘要：

The microstructure, dislocation and precipitation phases of X80 pipeline steel produced with different processes were analyzed by optical microscope and transmission electron microscope (TEM) contrastively, and the influence of structure pattern on the performance of X80 pipeline steel was studied. The result shows that the effects of acicular ferrite grain size, precipitate phase distribution, dislocation density and morphology on the material strength, toughness and brittle transmission temperatures were distinct, and solid solution strengthening, fine grain strengthening,dislocation strengthening and precipitation strengthening were the strengthening ways of X80 pipeline steel.

关键词： pipeline steel acicular ferrite dislocation precipitated phase toughness

作者: REN Yi LIU Wen-yue WANG Shuang ZHANG Shuai

作者单位: Technical Center of Anshan Iron & Steel Co. Ltd., Anshan 114009, China

会议类型: 国际会议

会议名称: The 6th International Conference on High Strength Low Alloy Steels(第六届高强度低合金钢国际会议HSLA Steels2011)

会议地点: 北京

会议语种:英文

页码: 819-822

在线出版日期: 2011-05-31（万方平台首次上网日期，不代表论文的发表时间）