China Science

The wetting phase transition of grain boundaries (GBs) and grain-boundary triple junctions (GB TJs) by the melt has been studied in the Al–30 wt.%Zn and Al–10 wt.%Zn–4 wt.%Mg polycrystals. The condition of complete wetting is weaker for TJs (?GB > ?SL) than that for GBs (?GB > 2?SL), ?GB being the GB energy and 2?SL being the energy of the solid/liquid interphase boundary. As a result the temperature of TJ wetting transition should be lower than that of GB wetting transition TwGB. It has been experimentally observed for the first time that TJs become completely wetted at TwTJ, which is about 10–15 °C below TwGB.

B.B. StraumalaEmail:straumal@issp.ac.ru?O. Kogtenkovab?P. Zibac
[a]Max-Planck-Institut für Metallforschung, Heisenbergstrasse 3, 70569 Stuttgart, Germany;[b]Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow District 142432, Russia;[c]Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta Street 25, 30-059 Cracow, Poland

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Takeuchi, Riki1 mnrikit@ust.hk?Shay, Jeffrey P.2 jshay@business.umt.edu?Li, Jiatao3,4 mnjtli@ust.hk
[1]Assistant Professor in the Department of Management of Organizations at the School of Business and Management, Hong Kong University of Science & Technology;[2]Associate Professor in and the Chiar of the Management and Marketing Department at the University of Montana;[3]Professor in and the Head of the Department of Management of Organizations at the Hong Kong University of Science & Technology;[4]Director of the Hang Lung Center for Organizational Research at the Hong Kong University of Science & Technology