Rapid Hypoeutectic Growth Within a Highly Undercooled Liquid Under Containerless Condition
HAN Xiu-Jun, YAO Wen-Jing, WEI Bing-Bo
Department of Applied Physics, Northwestern Polytechnical
University, Xi’an 710072
Rapid Hypoeutectic Growth Within a Highly Undercooled Liquid Under Containerless Condition
HAN Xiu-Jun;YAO Wen-Jing;WEI Bing-Bo
Department of Applied Physics, Northwestern Polytechnical
University, Xi’an 710072
关键词 ：
81.10.Fq ,
81.10.Mx ,
81.30.Fb
Abstract ： Rapid hypoeutectic growth from a highly undercooled liquid wasL ). The growth mechanism is found to transform from primary α-Ni dendrite plus lamellar eutectic to lamellar eutectic and finally to anomalous eutectic if droplet undercooling exceeds the two thresholds of 112K and 242K, respectively. Based on the current eutectic and dendritic growth models, the eutectic coupled zone is calculated and used to explain the growth mechanism transition. Calculations also indicate that the growth of α-Ni primary dendrite was mainly controlled by solute diffusion.
Key words ：
81.10.Fq
81.10.Mx
81.30.Fb
出版日期: 2002-04-01
:
81.10.Fq
(Growth from melts; zone melting and refining)
81.10.Mx
(Growth in microgravity environments)
81.30.Fb
(Solidification)
引用本文:
HAN Xiu-Jun;YAO Wen-Jing;WEI Bing-Bo. Rapid Hypoeutectic Growth Within a Highly Undercooled Liquid Under Containerless Condition[J]. 中国物理快报, 2002, 19(4): 584-587.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2002/V19/I4/584
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