籽晶制备及Ti-47Al合金PST晶体取向控制
金浩1,2,贾清1,刘荣华1,线全刚1,崔玉友1,徐东生1,杨锐1()
Seed Preparation and Orientation Control of PST Crystals of Ti-47Al Alloy
JIN Hao1,2,JIA Qing1,LIU Ronghua1,XIAN Quangang1,CUI Yuyou1,XU Dongsheng1,YANG Rui1()

图5. 终极籽晶外观及纵剖面组织形貌

Fig.5. Microstructures (a~c) and macrograph (d) of the ultimate seed solidified at the growth rate of 5 mm/h(a) bottom section of the seed (b) end part of the seed(c) dendrites morphology in the quench zone (d) photo of the ultimate seed bar