(北京科技大學(xué)冶金系，北京 100083)
摘 要: 根據(jù)相圖中出現(xiàn)包晶體、混合自由能和過(guò)剩自由能顯負(fù)值等，分別對(duì)Ag-In，Au-Bi 和Au-Pb金屬熔體制定了作用濃度計(jì)算模型。計(jì)算結(jié)果與實(shí)測(cè)值符合，從而證明計(jì)算模型可以反映相應(yīng)金屬熔體的結(jié)構(gòu)本質(zhì)，并證明大多數(shù)包晶體仍可存在于熔體中。
關(guān)鍵字: 包晶體 短程有序 作用濃度
（Department of Metallurgy, University of Science and Technology Beijing, Beijing 100083）
Abstract:Based on the appearance of peritectics, negative values of free energy of mixing and excess free energy etc., calculating models of mass action concentrations have been formulated for Ag-In, Au-Bi and Au-Pb melts respectively. Calculated results agreed well with measured values, which shows that the calculating models may reflect the structural characteristics of corresponding metallic melts and that many peritectics yet exist in mettallic melts.
Key words: peritectic short-range order mass action concentration
