作　　者： ; ; ;

机构地区： 中南大学材料科学与工程学院粉末冶金国家重点实验室

出　　处： 《矿冶工程》 2006年第3期65-67,共3页

摘　　要： 利用文献已有的体系热力学数据,采用计算材料学的方法计算了Cu-N i、Cu-Mo、N i-Mo 3个二元体系相图,并热力学外推了Mo-N i-Cu三元体系1 273 K等温截面图,发现在富Mo角存在一个狭小的液相区,表明在1 273 K的温度下已通过添加适量的铜镍固溶液可改善Mo合金的液相烧结性能,并实验验证了计算结果。 Using CALPHAD method, the phase diagrams of the Cu-Ni, Cu-Mo and Mo-Ni binary systems were calculated by employing the thermodynamic database in literature. Through extrapolation from the relative binary systems, the isothermal section of Mo-Ni-Cu ternary system at I 273 K was calculated. It is found that there is a narrow liquid phase area at the Mo-rich side, which demonstrates the possibility of liquid phase sintering at 1 273 K with some amount of addition of Cu and Ni. Furthermore, necessary experiment was carried out to confirm the calculation results.

关 键 词： 技术 热力学外推 液相烧结 三元体系

领　　域： [金属学及工艺] [一般工业技术] [金属学及工艺]