焊管2015，Vol.38Issue(12)：46-50,5.
X90管线钢管示波冲击试验研究
Instrument Impact Experiment Study of X90 Line Pipe
蔺卫平 1张庶鑫 1解学东1
作者信息
- 1. 中国石油集团石油管工程技术研究院,西安 710077
- 折叠
摘要
Abstract
The X90 line pipe, weld and HAZ were studied by instrumental impact experiment at different temperature, and the characteristic value of curve was analyzed. The result showed that as temperature decreases, the curve of X90 grade steel pipe changes gradually from only generating stable crack growth to unstable crack growth. The ductile-brittle transition temperature is about -90 ℃; The weld demonstrates unstable crack growth, with lower temperature, unstable crack growth is becoming increasing apparent. The ductile-brittle transition temperature is about -50 ℃. As temperature decreases, the curve of HAZ changes gradually from generating stable crack growth to unstable crack growth. The ductile-brittle transition temperature is about-60℃.关键词
焊管/X90管线钢管/示波冲击试验/稳定裂纹扩展/不稳定裂纹扩展Key words
welded pipe/X90 line pipe/instrument impact experiment/stable crack growth/unstable crack growth分类
矿业与冶金引用本文复制引用
蔺卫平,张庶鑫,解学东..X90管线钢管示波冲击试验研究[J].焊管,2015,38(12):46-50,5.
