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YIN Hong TAO Kun PAN Jinsheng LI Hengde Tsinghua University , Beijing , China professor.Department of Materials Science and Engineering , Tsinghua University , Beijing 100084 , China
金属学报(英文版)
The critical _d vahues ( _ ) of the γ/(γ+σ).γ/(γ+μ) and γ/(γ+γ') phase boundaries in some ternar alloy phase diagrams at various temperatures are calculated by averaging the _d values of sererai selected characteristic points at the phase boundaries.Approxmate equations for the temperature dependence of the critical _d of γ/(γ+σ).γ/(γ+μ) and γ/(γ+γ') phase boundaries are established.The accuracy of the analysis is discussed in detail. It is found for the first time that the average value of the bond order _ at the phase boundaries ts also approximatelr a constant and therefore a critical average bond order _ like - can be introduced for the analysts of phase stability
关键词: molecular orbital theory , null , null
殷宏 , 陶琨 , 潘金生 , 李恒德
金属学报
应用分子轨道理论分析了面心立方过渡族金属三元合金的固溶度,采用特征点成分平均法计算了三元合金相图的不同等温截面的43个γ/(γ+σ),γ/(γ+μ),和γ/(γ+γ′)相界线的临界■_d值■_(dc)。得到了γ/(γ+μ)相变的■_(dc)值与温度的关系式,并对分析的准确度进行了讨论发现存在着临界平均键合级次■_(oc),它可以和■_(dc)一道用来分析合金相的稳定性。
关键词: 分子轨道理论 , alloy phase , stability
