焊管Issue(4)：14-21,29,9.
大变形管线钢的研究和开发
Research and Development of Large Deformability Pipeline Steels
摘要
Abstract
In order to adapt to the large displacement environment of pipeline and to meet the demand of developing high strength pipeline steel , a kind of high deformability pipeline steel has been researched and developed in recent years. The study result indicated that the main performance characteristic of large deformability pipeline steel is to ensure high toughness and with lower yield ratio,higher uniform elongation and higher strain hardening exponent. The microstructure characteristic of large deformability pipeline steel is dual-phase microstructure of B+F and B+M/A. The B+F pipeline steel can be obtained by the mild accelerated cooling, dual-phase region accelerated cooling and delayed accelerated cooling. The B+M/A pipeline steel can be obtained by the heating on-line partitioning method.关键词
大变形管线钢/工程背景/性能特征/组织特征/形成方式Key words
arge deformability pipeline steel/engineering background/performance characteristic/microstructure characteristic/formation mode分类
矿业与冶金引用本文复制引用
高惠临,张骁勇..大变形管线钢的研究和开发[J].焊管,2014,(4):14-21,29,9.基金项目
国家自然科学基金项目（51174165）。 （）
