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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 5    No. 3    September 1995

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KINETICS OF LIQUID PENETRATING INTO GRAIN BOUNDARY
Chen Kanghua; Huang Baiyun

Powder Metallurgy Research institute; Central South University of Technology; Changsha 410083

Abstract:The kinetic equation of liquid penetration was derived from the suppositions that the solid-liquid interface energy is less than half of the grain boundary energy and the penetration is controlled by the diffusion of solute. The equation, verified by the existed experiment, showed that both thermodynamics and kinetics of liquid penetrating into grain boundary are dependent on solid-liquid interface energy.

 

Key words: interface; interface energy; wetting; penetration

ISSN 1672-7029
CN 43-1423/U

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