The application of first order mixing statistics to the variation of the diffusivity of carbon in austenite
The application of first order mixing statistics to the variation of the diffusivity of carbon in austenite
复制标题
一阶混合统计在奥氏体中碳扩散系数变化中的应用
DOI：
10.1007/bf02811782
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发表时间：
1970
期刊：
影响因子：
--
通讯作者：
R. Mclellan
中科院分区：
文献类型：
--
作者：
R. H. Siller;R. Mclellan
导出了间隙固溶体中溶质原子扩散系数随组成变化的表达式。扩散模型是基于应用的绝对反应速率理论的解决方案，其混合统计描述的一阶成对相互作用。的理论表达式进行了比较，奥氏体中的碳的实验数据和良好的协议被发现使用溶质-溶质结合能相同的系统的平衡热力学发现。
An expression for the variation with composition of the diffusivity of the solute atoms in interstitial solid solutions is derived. The diffusion model is based on the application of the absolute reaction rate theory to a solution whose mixing statistics are described by first order pairwise interactions. The theoretical expression is compared with experimental data for carbon in austenite and excellent agreement is found using a solute-solute binding energy identical to that found from the equilibrium thermodynamics of the system.