焊管2011，Vol.34Issue(5)：12-16,5.
高Nb X80管线钢的应变时效研究
Study on Strain Aging of X80 Pipeline Steel with High Nb
刘振伟 1郭晖 2尚成嘉2
作者信息
- 1. 渤海装备华油钢管有限公司,河北,青县,062650
- 2. 北京科技大学,北京,100083
- 折叠
摘要
Abstract
It introduced the higher yield ratio and the worse mechanical property of X80 pipeline steel with high Nb after 1％,2％ and 3％ circumferential strain at low temperature,which caused a lot of safety risks in subsequent application of pipeline steel. Pre-tempering was conducted in base material at 650 ℃ for 50 min (strain aging),it found that high temperature pre-tempering can increase strength, but at the same time it also can reduce yield ratio, so it can improve comprehensive mechanical properties of X80 pipehne steel ,this will be helpful to research strain aging and its rule of pipeline steel with high Nb.关键词
X80管线钢/应变时效/屈强比/高温预回火Key words
X80 pipeline steel/ strain aging/ yield ratio/ high temperature pre-tempering分类
矿业与冶金引用本文复制引用
刘振伟,郭晖,尚成嘉..高Nb X80管线钢的应变时效研究[J].焊管,2011,34(5):12-16,5.
