变形高温合金盘材及其制备技术研究进展
张北江(),黄烁,张文云,田强,陈石富
Recent Development of Nickel-Based Disc Alloys andCorresponding Cast-Wrought Processing Techniques
ZHANG Beijiang(),HUANG Shuo,ZHANG Wenyun,TIAN Qiang,CHEN Shifu

图7. 开坯工艺不当造成的GH4065合金棒材低倍粗晶

Fig.7. Coarse-grained macrostructures on billet induced by improper conversion techniques(a) low-magnification (b) residual as-cast structures