Effect of Structure Pattern on the Performance of X80 Pipeline Steel

作     者：REN Yi,LIU Wen-yue,WANG Shuang,ZHANG Shuai (Technical Center of Anshan Iron & Steel Co.Ltd.,Anshan 114009,Liaoning,China) 

作者机构：Anshan Iron & Steel Co Ltd Ctr Tech Anshan 114009 Liaoning Peoples R China 

出 版 物：《Journal of Iron and Steel Research International》 (钢铁研究学报(英文版))

年 卷 期：2011年第18卷第S1期

页      面：874-877页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：pipeline steel acicular ferrite dislocation precipitated phase toughness 

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 *** 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.