冷坩埚定向凝固Ti-47Al-2Cr-2Nb合金的拉伸与高周疲劳性能研究*
丁宏升(),尚子博,王永喆,陈瑞润,郭景杰,傅恒志
TENSILE AND HIGH CYCLE FATIGUE PROPERTIES OF Ti-47Al-2Cr-2Nb DIRECTIONALLY SOLIDIFIED BY COLD CRUCIBLE METHOD
Hongsheng DING(),Zibo SHANG,Yongzhe WANG,Ruirun CHEN,Jingjie GUO,Hengzhi FU

图12. 抽拉速率为1.2 mm/min时定向凝固Ti-47Al-2Cr-2Nb合金的高周疲劳断口形貌

Fig.12. Fracture morphologies of directionally solidified Ti-47Al-2Cr-2Nb alloy at withdrawal rate of 1.2 mm/min after high cycle fatigue (HCF)