T250马氏体时效钢激光焊接-时效处理接头的强韧性*
李坤1,单际国1,2(
),王春旭3,田志凌3
),王春旭3,田志凌3
STRENGTH AND TOUGHNESS OF T250 MARAGING STEEL JOINT HYBRID-TREATED WITH LASER WELDING AND AGING
Kun LI1,Jiguo SHAN1,2(),Chunxu WANG3,Zhiling TIAN3
),Chunxu WANG3,Zhiling TIAN3
图9. 不同热处理状态母材及焊接-时效处理工艺接头焊缝断口的SEM像
Fig.9. SEM images of fractures in as-received parent metal (a), aged parent metal (b), welded joint aged before welding (c) and welded joint aged after welding (d)
