| 型内熔化合金元素扩散的浓度方程及仿真 |
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| 引用本文： | 余世浩,尉雪萍,曾辉. 型内熔化合金元素扩散的浓度方程及仿真[J]. 武汉理工大学学报, 2011, 0(6) |
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| 作者姓名： | 余世浩 尉雪萍 曾辉 |
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| 作者单位： | 武汉理工大学材料科学与工程学院;武汉理工大学华夏学院;嘉应学院电子信息工程系; |
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| 基金项目： | 广东省自然科学基金(9151064201000052); 武汉理工大学自主创新研究基金(2010-ZY-CL-065) |
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| 摘 要： | 利用Fick第二定律,研究型内熔化扩散过程中合金元素的浓度分布方程,应用积分变换方法求解微分方程,得到了合金元素扩散方程的基本解;并在此基础上针对实验过程中铸型尺寸、合金棒尺寸、扩散系数等因素,进行了液态金属中钒原子扩散过程的模拟仿真,分析了不同初始条件下的扩散分布。结果表明,钒元素扩散后在材料内呈连续梯度分布,为利用型内熔化方法制备外硬内韧耐磨材料提供了理论依据。
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| 关 键 词： | 扩散 液态金属 合金元素 浓度分布 |
Study on the Concentration Equation and Simulation of Alloy Elements in the Melting and Diffusion Process |
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| YU Shi-hao,,WEI Xue-ping,ZENG Hui. Study on the Concentration Equation and Simulation of Alloy Elements in the Melting and Diffusion Process[J]. Journal of Wuhan University of Technology, 2011, 0(6) |
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| Authors: | YU Shi-hao WEI Xue-ping ZENG Hui |
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| Affiliation: | YU Shi-hao1,2,WEI Xue-ping1,ZENG Hui3(1.School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China,2.Wuhan University of Technology Huaxia College,Wuhan 430223,3.Department of Electronics and Information Engineering,Guangdong Jiaying College,Meizhou 514015,China) |
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| Abstract: | Based on the Fick's second law,the concentration equation was deduced and its fundamental solution was obtained by using the integral transformation method.Moreover,the diffusion process of vanadium in liquid metal was simulated by considering the experimental factors of mold size,alloy-rod size and diffusion coefficient and etc.The results revealed that vanadium was gradual distributing in the material,which provided theoretical foundation for the melting and diffusion process in preparing wear resistant m... |
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| Keywords: | diffusion liquid metal alloy elements concentration distribution |
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