Formation of MC-γ/γ′ eutectic fibers and their effect on stress rupture behavior in D/S Mar-M247LC superalloy

被引:42
作者
Bae, JS
Lee, JH [1 ]
Kim, SS
Jo, CY
机构
[1] Changwon Natl Univ, Dept Met & Mat Sci, Sarim Dong 641773, Changwon, South Korea
[2] Gyeongsung Natl Univ, Ctr Adv Mat Res, Div Mat Sci & Engn, Chinju 660701, South Korea
[3] KIMM, High Temp Mat Lab, Chang Won 641010, South Korea
关键词
solidification; nickel; liquids; interface; fibers;
D O I
10.1016/S1359-6462(01)01049-1
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A MC-γcomposite structure in Mar-M247LC superalloy was obtained by directional solidification. The microstructure of directional solidification was found to change, as solidification progressed. The change was observed in the composition of liquid which increased due to the segregation of elements. The eutectic solidification with a planar solid/liquid interface was obtained at a low withdrawl rate of 0.5 milliμ/s.
引用
收藏
页码:503 / 508
页数:6
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