焊管2016，Vol.39Issue(3)：16-19,4.DOI:10.19291/j.cnki.1001-3938.2016.03.004
X80钢焊接热影响区脆化软化现象热模拟试验研究
Thermal Simulation Experiments Research on Heat-affected Zone Embrittlement and Softening of X80 Pipeline Steel
赵波 1李国鹏 2王旭 1付彦宏 2刘涛 1张红 2李涛1
作者信息
- 1. 中国石油集团渤海装备研究院, 河北 青县 062658
- 2. 渤海装备国家企业技术中心钢管研发分中心, 河北 青县 062658
- 折叠
摘要
Abstract
In order to study X80 pipeline steel HAZ structure and mechanical properties changing rules along with cooling rate and welding heat input changing, the thermal simulation test was carried out for 26.4 mm thickness X80 pipeline steel, which possesses specific chemical composition and original metallographic structure. The results showed that using the accelerated cooling or low heat input welding technology, the cooling rate can be increased properly,the grain of HAZ is refined, the embrittlement and softening of the welding HAZ is improved or even eliminated, which can effectively improve the strength and toughness of X80 pipeline steel, and increase the qualified rate of products.关键词
焊接/X80管线钢/脆化软化/加速冷却/低线能量Key words
welding/X80 pipeline steel/embrittlement and softening/accelerated cooling/low heat input分类
矿业与冶金引用本文复制引用
赵波,李国鹏,王旭,付彦宏,刘涛,张红,李涛..X80钢焊接热影响区脆化软化现象热模拟试验研究[J].焊管,2016,39(3):16-19,4.
