B对铜合金压铸热作模具钢高温力学及热疲劳性能的影响*
王志胜1,陈祥1,2(
),李言祥1,2,张华伟1,2,刘源1,2
),李言祥1,2,张华伟1,2,刘源1,2
EFFECTS OF B ON HIGH TEMPERATURE MECHA-NICAL PROPERTIES AND THERMAL FATIGUE BEHAVIOR OF COPPER DIE-CASTING DIE STEEL
Zhisheng WANG1,Xiang CHEN1,2(),Yanxiang LI1,2,Huawei ZHANG1,2,Yuan LIU1,2
),Yanxiang LI1,2,Huawei ZHANG1,2,Yuan LIU1,2
图 6. 3Cr10Mn7Ni6SiCuB0.7钢在室温至800 ℃热疲劳300 cyc后裂纹纵深扩展形态
Fig.6. Cracks propagation on the cross-section of 3Cr10Mn7Ni6SiCuB0.7 with crack blunted (a, c, d) and crack deflected (b, c, d) by boride after thermal fatigue testing for 300 cyc from room temperature to 800 ℃
