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首页> 外文期刊>ISIJ international >Analysis of Diffusion-controlled Phenomena at the Interface of α/γ Diffusion Couples of Stainless Steels
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Analysis of Diffusion-controlled Phenomena at the Interface of α/γ Diffusion Couples of Stainless Steels

机译：α / γ不锈钢扩散对的界面处的扩散控制现象分析

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The interdiffusion of Ni, Cr, and Mo across the interface in the diffusion couples of type444/type316L stainless steels was simulated using the DICTRA software. The distance of interface migration and the Ni diffusion distance into the ferrite phase were calculated and compared with the experimental results previously reported by a present author. The calculated results agree very well with the experimental results. An analytical model based on the analytical solutions for the semi-infinite solute diffusion equations has been proposed. In the model, all solute elements are considered and diffusion paths are calculated. The supersaturations of the solutes defined both for the ferrite phase and the austenite phase are calculated from the calculated diffusion paths. According to the model it is shown that the temperature dependency of the interface migration distance and the Ni diffusion distance can be quantitatively evaluated by the supersaturation for Ni.
机译：使用DICTRA软件模拟了444、316L型不锈钢扩散对中Ni，Cr和Mo在界面上的相互扩散。计算了界面迁移的距离和Ni向铁素体相的扩散距离，并将其与本作者先前报道的实验结果进行了比较。计算结果与实验结果非常吻合。提出了一种基于半无限溶质扩散方程解析解的解析模型。在模型中，考虑了所有溶质元素并计算了扩散路径。从计算出的扩散路径计算出为铁素体相和奥氏体相定义的溶质的过饱和度。根据该模型表明，可以通过Ni的过饱和来定量评估界面迁移距离和Ni扩散距离的温度依赖性。

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