调质处理对G520钢焊接接头组织及性能的影响
张敏(),贾芳,程康康,李洁,许帅,仝雄伟
Influence of Quenching and Tempering on Microstructure and Properties of Welded Joints of G520 Martensitic Steel
ZHANG Min(),JIA Fang,CHENG Kangkang,LI Jie,XU Shuai,TONG Xiongwei

图2. 热处理工艺流程图

Fig.2. Schematics of heat treatment process (AC—air cooling, OC—oil cooling, FC—furnace cooling, Ac1—start temperature of austenite transformation)(a) quenched-tempered before welding (1#) (b) quenched-tempered after welding (2#)