焊管2024，Vol.47Issue(6)：7-16,10.DOI:10.19291/j.cnki.1001-3938.2024.06.002
低合金高强度钢焊接热影响区性能研究现状及改善措施
Research Status and Improvement Measures of Welding Heat Affected Zone Properties of Low Alloy High Strength Steel
甘正红 1赵海林 2李学达 3孙宪进 4张坤鹏5
作者信息
- 1. 江苏德创制管有限公司,江苏 兴化 225700
- 2. 南通振华重型装备制造有限公司,江苏 南通 226000
- 3. 中国石油大学(华东)材料科学与工程学院,山东 青岛 266580
- 4. 江阴兴澄特种钢铁有限公司,江苏 江阴 214429
- 5. 番禺珠江钢管(连云港)有限公司,江苏 连云港 222006
- 折叠
摘要
Abstract
Due to the different welding thermal cycle process,the microstructure of each region of the welding heat affected zone of the low alloy high strength steel is significantly changed,which leads to the deterioration of the performance,resulting in the welding heat affected zone becoming the weakest area of the welded joint.In view of the hardening,embrittlement,softening and cold crack sensitivity of low alloy and high strength steels,the key factors affecting the performance of the heat affected zone are analyzed and summarized,including the welding thermal cycle,welding process conditions,chemical composition and original microstructure of the base metal.The optimum design of welding process parameters and conditions is proposed by using welding thermal simulation technology,reasonable base metal composition design and original structure state,so as to improve and enhance the comprehensive performance of welding heat affected zone.关键词
低合金高强钢/热影响区/焊接工艺Key words
low alloy high strength steel/heat affected zone/welding process分类
矿业与冶金引用本文复制引用
甘正红,赵海林,李学达,孙宪进,张坤鹏..低合金高强度钢焊接热影响区性能研究现状及改善措施[J].焊管,2024,47(6):7-16,10.
