Allvac 718Plus高温合金第二相演变与性能研究进展

唐丽婷, 郭倩颖, 李冲, 丁然, 刘永长

Advances in Secondary Phase Evolution and Performance Enhancement of Allvac 718Plus Superalloy

TANG Liting, GUO Qianying, LI Chong, DING Ran, LIU Yongchang

图4 经1000 ℃、1 h和920 ℃、1 h固溶处理后Allvac 718Plus合金晶界处的粒状η相和导致晶界锯齿化的针状η相[10]

Fig.4 SEM images of the grain-boundary η phase with different morphologies and the serrated boundary induced by needle-like η phase in Allvac 718Plus solution treated for 1 h at 1000 oC (a, b) and 920 oC (c, d), respectively, followed by the dual aging treatment (The yellow arrows denote the growth directions of the granular η phase)[10]