二次枝晶取向对镍基高温合金晶粒竞争生长行为的影响
张小丽1, 冯丽2, 杨彦红3, 周亦胄3, 刘贵群1(
)
)
Influence of Secondary Orientation on Competitive Grain Growth of Nickel-Based Superalloys
ZHANG Xiaoli1, FENG Li2, YANG Yanhong3, ZHOU Yizhou3, LIU Guiqun1()
)
图6. 二次枝晶取向不同时三晶纵截面组织演化
Fig.6. OM images showing the microstructures of ter-crystal samples with different withdrawal speeds of Exp.3-1 (a~d) and Exp.3-2 (e~h) (White triangles: the blocking of the favorably aligned dendrites; black triangles: the blocking of the unfavorably aligned dendrites; white arrows: the branching of the favorably aligned dendrites; black arrows: the branching of the unfavorably aligned dendrites)
(a, e) longitudinal section (b, f) 90 mm transverse section (c, g) 55 mm transverse section (d, h) 10 mm transverse section
