国内变形高温合金研制进展
杜金辉1,吕旭东1,2(),董建新3,孙文儒4,毕中南1,2,赵光普1,邓群1,崔传勇4,马惠萍1,张北江1
Research Progress of Wrought Superalloys in China
DU Jinhui1,LV Xudong1,2(),DONG Jianxin3,SUN Wenru4,BI Zhongnan1,2,ZHAO Guangpu1,DENG Qun1,CUI Chuanyong4,MA Huiping1,ZHANG Beijiang1

图4. 直径406和508 mm的GH4720Li合金铸锭中心部位纵向高倍组织

Fig.4. Longitudinal section microstructures of centers of GH4720Li ingots(a1~a3) diameter 406 mm ingot (b1~b3) diameter 508 mm ingot