焊管2011，Vol.34Issue(10)：16-19,43,5.
X100高强度管线钢管组织性能及焊接性能研究
Structure and Welding Performance Study on X1O0 Line Pipe with High Strength
张伟卫 1李洋 1李鹤 1熊庆人 1吉玲康1
作者信息
- 1. 中国石油集团石油管工程技术研究院,西安710065
- 折叠
摘要
Abstract
Mechanical property and structure of X100 line pipe were studied with universal material testing machine, OEM, SEM and TEM. The results showed that the structure of X100 line pipe body metal is formed by granular bainite and a little polygonal ferrite, which possess good strength and toughness. But the thermal sensitivity of X100 pipeline steel is high,the structure of overheated zone is easier to grow big under welding thermal cycle, which lead to softening and embrittlement in HAZ, so it is a weak point for X100 line pipe. Meanwhile, the possibility of adopting low match for X100 pipeline steel welded joints was investigated.关键词
X100管线钢管/粒状贝氏体/强度/韧性Key words
X100 line pipe/ granular bainite/ strength/ toughness分类
矿业与冶金引用本文复制引用
张伟卫,李洋,李鹤,熊庆人,吉玲康..X100高强度管线钢管组织性能及焊接性能研究[J].焊管,2011,34(10):16-19,43,5.
