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Title: Laser resolidification of Zn-rich Zn-Ag peritectic alloys
Authors: Zhang, G.-D.
Li, Z.-Y.
Xu, W.
Li, Y. 
Keywords: Couple growth
Laser remelting
Zn-Ag alloys
Issue Date: Jun-2002
Citation: Zhang, G.-D.,Li, Z.-Y.,Xu, W.,Li, Y. (2002-06). Laser resolidification of Zn-rich Zn-Ag peritectic alloys. Transactions of Nonferrous Metals Society of China (English Edition) 12 (3) : 433-436. ScholarBank@NUS Repository.
Abstract: Laser remelting experiments were performed by a 1.0 kW continuous CO2 laser for investigating the rapid solidification behavior of Zn-rich Zn-Ag peritectic alloys. Three kinds of microstructures occurs with the varying of laser scanning speed and Ag content in the alloys. It is mainly plate-like single-phase cellular η when the Ag content was lower than 1.8% (mole fraction). As the Ag content increased, instead of typical structure of primary dendrites of ε surrounded by peritectic η, a two-phase plate-like η+ε with primary dendrites of ε is found when the laser scanning speed was higher than a critical value. Intercellular spacing of cellular ε or interphase spacing of two-phase couple growth η+ε decreases with increasing laser scanning speed.
Source Title: Transactions of Nonferrous Metals Society of China (English Edition)
ISSN: 10036326
Appears in Collections:Staff Publications

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