Temperature-induced structure transition in a liquid Co-B eutectic alloy

被引：11
作者：
He, Yixuan [1 ,2 ,3 ]
Li, Jinshan [1 ]
Wang, Jun [1 ]
Yildiz, Eyub [3 ]
Pairis, Sebastien [4 ,5 ]
Beaugnon, Eric [2 ,3 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China
[2] Univ Grenoble Alpes, LNCMI, F-38000 Grenoble, France
[3] CNRS, LNCMI, F-38000 Grenoble, France
[4] Univ Grenoble Alpes, Inst Neel, F-38000 Grenoble, France
[5] CNRS, Inst Neel, F-38000 Grenoble, France
来源：
MATERIALS LETTERS | 2019年 / 234卷
关键词：
Phase transformation; Solidification; Magnetic materials; Metals and alloys; SOLIDIFICATION; MELT;
D O I：
10.1016/j.matlet.2018.09.138
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The structure of metallic melt is not homogeneous and liquid-liquid structure transition (LLST) widely exists which can make strong influence on the subsequent solidification process. Here we report an experimental evidence of temperature induced LLST in a Co-B eutectic melt by in-situ measuring the magnetization within a wide temperature range under high magnetic fields. A transition point (T-0) and two paramagnetic Curie temperatures (theta(p)(L1), theta(p)(L2)) corresponding to two different structures of the liquids are determined. The effects of magnetic field intensity on the LLST and paramagnetic curie temperatures are studied, and T-0 and theta(p)(L2) are found not sensitive to the field intensity, whereas, theta(p)(L1) shifts to lower temperatures with the increasing magnetic field intensity. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：351 / 353
页数：3
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