Heat Transfer Analysis During "One-Step" Directional Solidification Process for Giant Magnetostrictive Materials
来源期刊：JOURNAL OF RARE EARTHS2004年增刊第2期
论文作者：Yu Dunbo Li Kuoshe Yuan Yongqiang Yang Hongchuan Xu Jing Li Hongwei
Key words：directional solidification; "one-step" process; heat transfer; solid-liquid interface; thermal gradient;
Abstract: By theoretical analysis of heat transfer during the "one-step" directional solidification process, the functional relation between the temperature in solid-liquid interface and its effect factor was studied. The thermal gradient in solid liquid interface and heat transfer coefficient between the samples and surroundings were also calculated. On the basis of the above analysis, some suggestions for improving the thermal gradient in solid-liquid interface were put forward. It will provide a theoretical instruction for preparing high performance giant magnetostrictive materials (GMM).
Yu Dunbo1，Li Kuoshe1，Yuan Yongqiang1，Yang Hongchuan1，Xu Jing1，Li Hongwei1
(1.Grirem Advanced Materials Co.,Ltd,General Research Institute for Nonferrous Metals,Beijing 100088,China)
Abstract:By theoretical analysis of heat transfer during the "one-step" directional solidification process, the functional relation between the temperature in solid-liquid interface and its effect factor was studied. The thermal gradient in solid liquid interface and heat transfer coefficient between the samples and surroundings were also calculated. On the basis of the above analysis, some suggestions for improving the thermal gradient in solid-liquid interface were put forward. It will provide a theoretical instruction for preparing high performance giant magnetostrictive materials (GMM).
Key words:directional solidification; "one-step" process; heat transfer; solid-liquid interface; thermal gradient;
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