Discontinuous Structural Phase Transition Behaviour in Multiple Component Alloy Melts
WANG Yu-Qing1,2, WU Yu-Qin1, LIU Jian-Tong1, BIAN Xiu-Fang1
1Key Laboratory of Liquid Structure and Heredity of Materials of Ministry of Education, Shandong University,Jinan 250061
2Jinan Railway Polytechnic Institute, Jinan 250013
Discontinuous Structural Phase Transition Behaviour in Multiple Component Alloy Melts
WANG Yu-Qing1,2;WU Yu-Qin1;LIU Jian-Tong1; BIAN Xiu-Fang1
1Key Laboratory of Liquid Structure and Heredity of Materials of Ministry of Education, Shandong University,Jinan 250061
2Jinan Railway Polytechnic Institute, Jinan 250013
Abstract： Discontinuous structural phase transition behaviour in seven kinds of liquid multiple component alloys are found by using a torsional oscillation viscometer. There are different phases existing in the system and the number of phases is discussed using the equilibrium thermodynamics phase rule. The phase parameters (η0,ε) and order parameter df in different phase regions are calculated based on the researched results. It is found that the parameters (η0,ε, df) change at the structural transition point. The diameter of the fluid clusters, df, is stable in each phase region, which indicates that the structure is uniform.
2006, Vol. 23 
