摘要
通过焊后两相区淬火调质处理，可使调质用３５ＣｒＭｏ焊接过热区的强韧性提高。当加热温度处于两相区高温段，过热区韧性达最佳值，文中从过热区组织结构的一般特征，铁素体形态和回火脆性等几个方面探讨了过热区强韧化的机理。
The strength and toughness of over-heated HAz of 35CrMo steel canbe improved after double-phase zone(DPZ)trcatment.The toughness of over-heatedHAZ is optimal when quenching temperature corresponds to the high temperature zoneof DPZ. In this papcr,the mechanism of strcngth and toughness improvement is dis-cusscd in three aspects,i.e.,microstructure of ovcr-heated HAZ, morphology ofundissolved ferrite and temper brittleness.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
1994年第2期107-112,共6页
Transactions of The China Welding Institution
关键词
中碳钢
调质钢
焊接
过热区
强韧性
medium carbon Q and T steel
over-heated HAZ strength and toughness
