摘要
Based on Kohler’s ternary solution model and Miedema’s model for calculating the formation heat of binary solution, the integral equation was established for calculating the activity coefficients in ternary alloys and intermetallics. The activity coefficients for components in alloy Ti-5Al-2.5Sn, Ti-6Al-4V and intermetallics TiAl, Ti3Al and Ti2AlNb were calculated with the equations. The calculated data coincide well with the experimental ones found in literatures. According to the calculated activity coefficients and activities, it can be predicted that the interfacial reaction in SiC/Ti3Al composite is more severe than that in composites SiC/Ti2AlNb and SiC/TiAl.
Based on Kohler's ternary solution model and Miedema's model for calculating the formation heat of binary solution, the integral equation was established for calculating the activity coefficients in ternary alloys and intermetallics. The activity coefficients for components in alloy Ti-5Al-2.5Sn, Ti-6Al-4V and intermetallics TiAl, Ti_3Al and Ti_2AlNb were calculated with the equations. The calculated data coincide well with the experimental ones found in literatures. According to the calculated activity coefficients and activities, it can be predicted that the interfacial reaction in SiC/Ti_3Al composite is more severe than that in composites SiC/Ti_2AlNb and SiC/TiAl.
出处
《中国有色金属学会会刊：英文版》
CSCD
2004年第5期875-879,共5页
Transactions of Nonferrous Metals Society of China
基金
Project(locality 0 2 191)supportedbytheKeyFoundationofMinistryofEducationofChina
project( 2 0 0 2B2 0 )supportedbytheNaturalScienceFoundationofShaanxiProvince
project( 0 2JK117)supportedbytheFoundationofShaanxiEducationCommittee
