| Comparison between methods for predicting maximum solid solubility of transition metals in solvent metal |
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| 引用本文： | 周自强,方守狮,冯锋. Comparison between methods for predicting maximum solid solubility of transition metals in solvent metal[J]. 中国有色金属学会会刊, 2003, 13(5) |
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| 作者姓名： | 周自强 方守狮 冯锋 |
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| 作者单位： | Institute of Hydrogen Storage Materials Shanghai University，Shanghai 200072，China，Institute of Hydrogen Storage Materials Shanghai University，Shanghai 200072，China，Department of Mechanical Automotive and Materials Engineering，University of Windsor，Windsor，Ont.，Canada N9B 3P4 |
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| 摘 要： | 1 INTRODUCTIONThepredictionofsolidsolubilityofanalloyisasuspendingbutanimportant question .Therearemanymicrocosmictheoriesand goodreviews pub lishedelucidatingtheeffectsofelectronegativity ,atomicdiameterandelectronconcentrationonthesol idsolubility ,respectively[1,2 ] .However,theyaredifficulttopredictsolidsolubilitythoughtheycanex plainsomeexperimentalrules.DarkenandGurry[3,4 ]proposedatheoremconsideringbothatomicsizeandelectronegativity ,whichgreatlyimprovedtheHume Rothery swork (D …
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Comparison between methods for predicting maximum solid solubility of transition metals in solvent metal |
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| ZHOU Zi qiang ,FANG Shou shi ,FENG Feng. Comparison between methods for predicting maximum solid solubility of transition metals in solvent metal[J]. Transactions of Nonferrous Metals Society of China, 2003, 13(5) |
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| Authors: | ZHOU Zi qiang FANG Shou shi FENG Feng |
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| Affiliation: | ZHOU Zi qiang 1,FANG Shou shi 1,FENG Feng 2 |
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| Abstract: | It is important to know the maximum solid solubility( C max ) of various transition metals in a metal when one designs multi component alloys. There have been several semi empirical approaches to qualitatively predict the C max , such as Darken Gurry(D G) theorem, Miedema Chelikowsky(M C) theorem, electron concentration rule and the bond parameter rule. However, they are not particularly valid for the prediction of C max . It was developed on the basis of energetics of alloys as a new method to predict C max of different transition metals in metal Ti, which can be described as a semi empirical equation using the atomic parameters, i e, electronegativity difference, atomic diameter and electron concentration. It shows that the present method can be used to explain and deduce D G theorem, M C theorem and electron concentration rule. |
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| Keywords: | maximum solid solubility function Z f prediction method electronegativity difference atomic size factor electron concentration |
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