S.P. Li
,
S.X. Zhao
,
M.X Pan
,
D.Q. Zhao
,
and X.C.Chen (Institute of Physics
,
Chinese Academy of Sciences
,
Beijing 100080
,
China)
金属学报(英文版)
Dependence of the morphology of α(Al)-Mg2Si eutectic on the solidification velocity, and its orientation characteristics were investigated by thermoanalysis, directional solidification and electron diffraction techniques in this study.The eutectic morphology transformed from lamellae to rods with the increasing of the solidification velocity. Simultaneously, the orientation relationship changed from (100)Mg2Si/(100)Al;[110]Mg2si/[110]al to (011)Mg2si/(121)Al;[111]Mg2Si/[111]Al and (010)Mg2Si/(110)Al; [100]Mg2Si/[111]Al. Transformation of the eutectic morphology was related to the change of the preferred orientation of phase Mg2si.
关键词:
:α(Al)-Mg_2Si eutectic
,
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,
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