一种镍基单晶高温合金的蠕变组织损伤对再蠕变行为的影响

张敏, 张思倩, 王栋, 陈立佳

Creep Microstructure Damage and Influence on Re-creep Behavior for a Nickel-based Single Crystal Superalloy

ZHANG Min, ZHANG Siqian, WANG Dong, CHEN Lijia

图3 DD413单晶高温合金横截面枝晶干的显微组织

Fig.3 Microstructure of dendrite region the DD413 single-crystal superalloy at cross sections (a) 0.2% at 980℃/200 MPa, (b) 0.2% at 870℃/430 MPa, (c) 0.5% at 980℃/200 MPa, (d) 0.5% at 870℃/430 MPa, (e) 1% at 980℃/200 MPa, (f) 1% at 870℃/430 MPa