界面热力学与晶界相图的研究进展

胡标, 张华清, 张金, 杨明军, 杜勇, 赵冬冬

Progress in Interfacial Thermodynamics and Grain Boundary Complexion Diagram

HU Biao, ZHANG Huaqing, ZHANG Jin, YANG Mingjun, DU Yong, ZHAO Dongdong

图6 亚固相准液相晶间膜示意图[92]

Fig.6 Schematics of subsolidus quasi-liquid intergranular films[92] (γcl and γGB are the excess free energies for crystal-liquid and grain boundary, respectively. The superscript “(0)” is used to denote a hypothetic “dry” and “perfectly crystalline” interface. Δγ is the change of interface energy. h is the thickness of the quasi-liquid intergranular film, σinterfacial(h) is the interfacial potential that represents the interactions of two interfaces when the film is thin)