Critical Systematic Evaluation and Thermodynamic Optimization of the Mn-RE System (RE?=?Tb, Dy, Ho, Er, Tm and Lu) with Key Experiments for the Mn-Dy System

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• 作者：Junghwan Kim (1)
  Manas Paliwal (1)
  Shihuai Zhou (2)
  Hanshin Choi (3)
  In-Ho Jung (1)
  
• 关键词：Mg ; RE alloy ; Mn ; RE system ; phase diagrams ; thermodynamic modeling ; thermodynamic properties
• 刊名：Journal of Phase Equilibria and Diffusion
• 出版年：2014
• 出版时间：December 2014
• 年：2014
• 卷：35
• 期：6
• 页码：670-694
• 全文大小：3,110 KB
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• 作者单位：Junghwan Kim (1)
  Manas Paliwal (1)
  Shihuai Zhou (2)
  Hanshin Choi (3)
  In-Ho Jung (1)
  
  1. Department of Mining and Materials Engineering, McGill University, 3610 University St., Montreal, QC, H3A 2B2, Canada
  2. Materials Sciences and Engineering, Ames Laboratory, US DOE, Ames, IA, 50011-3020, USA
  3. Korea Institute of Industrial Technology, Incheon, 406-840, South Korea
  
• ISSN：1863-7345

文摘

Critical evaluation and optimization of all available phase diagrams and thermodynamic data for the Mn-RE (RE?=?Tb, Dy, Ho, Er, Tm, and Lu) systems has been conducted to obtain reliable thermodynamic functions of all the phases in the systems. Key experiments for the Mn-Dy system were performed using DSC and solution calorimeter. In the thermodynamic modeling, it is found that the Mn-RE systems show systematic changes in the phase diagrams and thermodynamic properties such as enthalpy of mixing in liquid state in the order of periodic number in the lanthanide series. The systematic thermodynamic modeling approach for RE elements allow to resolve inconsistencies in the experimental data and estimate unknown thermodynamic properties and phase equilibria of Mn-RE system.