MIXING ENTHALPY OF LIQUID FE-CO-TI ALLOYS

被引：8
|
作者：
WANG, H [1 ]
LUCK, R [1 ]
PREDEL, B [1 ]
机构：
[1] MAX PLANCK INST MET RES,INST WERKSTOFFWISSENSCH,SEESTR 75,W-7000 STUTTGART 80,GERMANY
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 1993年 / 156卷
关键词：
D O I：
10.1016/0022-3093(93)90203-A
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The enthalpies of mixing of liquid Fe-Co-Ti alloys have been measured calorimetrically for the section Fe0.9Co0.1-Ti at a temperature of 1600-degrees-C. The liquid Fe0.9Co0.1-Ti alloys show negative mixing enthalpies, which are more negative than those of liquid binary Fe-Ti alloys because of the strong interaction between the Co and Ti atoms. The enthalpy data have been fitted by a least-squares method to a modified power series. Comparing the results from the calorimetric measurements with those from calculation by means of different algorithms of extrapolation from the binary boundary systems, the so-called Hillert-2 geometry turned out to the most suitable geometry for interpolation of the ternary Fe-Co-Ti system. In consequence, by use of this geometry the mixing enthalpy of liquid Fe-Co-Ti alloys has been calculated in the entire ternary system. Beyond the concentration range where experiments could be performed, the results of the calculation could be taken as a good approximation.
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页码：388 / 392
页数：5
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