材料期刊网

NEAR RAPID DIRECTIONAL SOLIDIFICATION AND ITS SUPERFINE MICROSTRUCTURE

H.Z. Fu , X.G. Gen , J.G. Li and J.Zhang(State Key Lab.of Solidification Processing , Northwestern Polytechnical University , Xi'an 710072 , China Manuscript received 26 August 1996)

金属学报(英文版)

This paper briefly reviews the recent research on the near rapid directional solidification and microstructure superfining. The morphology transitions and the corresponding mechanical properties are presented. The critical velocities relevant to the morphology transitions are comprehensively given. Meanwhile the solidification characteristics near absolute stability limit are studied.It can be clearly seen that the superfine microstructures possess extremely better properties compared with the conventional microstructures.

关键词: :near rapid directional solidification , null , null , null