镍基单晶高温合金冷热循环过程中圆孔周围裂纹萌生与扩展行为
王莉1(
),周忠娇1,张少华1sup,降向冬2,楼琅洪1,张健1
),周忠娇1,张少华1sup,降向冬2,楼琅洪1,张健1
CRACK INITIATION AND PROPAGATION AROUND HOLES OF Ni-BASED SINGLE CRYSTAL SUPERALLOY DURING THERMAL FATIGUE CYCLE
Li WANG1(),Zhongjiao ZHOU1,Shaohua ZHANG1,Xiangdong JIANG2,Langhong LOU1,Jian ZHANG1
),Zhongjiao ZHOU1,Shaohua ZHANG1,Xiangdong JIANG2,Langhong LOU1,Jian ZHANG1
图3. 经电火花打孔后镍基单晶高温合金(100)样品孔周围组织形貌
Fig.3. Morphology of hole on (100) specimen (a) and recast layer around the hole (b) of Ni-based single crystal superalloy after electro-discharge machining
