中碳调质钢焊接热影响区脆化研究现状  

Research status of HAZ embrittlement of medium carbon quenched and tempered steel

作　　者：李立英[1] 李宏伟 韩涛[1] 

机构地区：[1]中国石油大学(华东)机电工程学院,山东东营257061 [2]上海外高桥造船有限公司,上海200137

出　　处：《兵器材料科学与工程》2011年第3期82-86,共5页Ordnance Material Science and Engineering

基　　金：工业与信息化部;船工科[2009]47号

摘　　要：中碳调质钢具有良好的强度与韧性匹配,在许多重要领域得到广泛的应用。综述中碳调质钢焊接热影响区的分布,脆化类型及机理,总结分析粗晶区和再热粗晶区的脆化原因及其防止措施,并指出中碳调质钢焊接热影响区研究的重点。Medium carbon quenched and tempered steel （Q ＆ T） exhibits high strength and excellent toughness, and has been extensively applied to a lot of important fields. The heat-affected zone （HAZ） distribution, embrittlement types and mechanisms of medium carbon Q ＆ T steel were summarized. Moreover, embrittlement mechanisms and toughening measurements of the coarsegrained HAZ （CGHAZ） and the intercritically reheated coarse-grained HAZ （IRCGHAZ） were also analyzed. Finally, the focus of future research on HAZ of medium carbon Q ＆ T steel was pointed.

关 键 词：中碳调质钢 焊接热影响区 脆化机理 局部脆化区 韧化措施 

分 类 号：TG401[金属学及工艺—焊接]