摘要
研究了熔体过热处理对M963铸造镍基高温合金凝固偏析的影响。结果表明,熔体过热处理对Al,Co和Ni的偏析影响不大;1 923 K,5 min熔体过热处理,使Ti,Nb和W的偏析增大,Mo和Cr的偏析减小。元素偏析程度的改变是由于合金熔体结构的变化引起的。
The effect of melt overheating treatment on the solidification segregation of M963 cast Ni-base superalloy has been studied. The results show that the melt overheating treatment has little effect on the segregation of Al, Co and Ni; and the melt treatment at 1 923 K for 5 min caused an increase in segregation of Ti, Nb and W and a decrease in segregation of Mo and Cr obviously. It is suggested that the change of segregation is attributed to the change in the melt structure of the M963 superalloy.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2004年第6期659-661,共3页
Rare Metal Materials and Engineering
关键词
高温合金
熔体处理
偏析
凝固
superalloy
melt treatment
segregation
solidification
