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Acta Metall Sin  2005, Vol. 41 Issue (1): 67-    DOI:
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Microstructure of Zn-2%Cu Alloy Under Laser Rapid Melting—Solidification
SU Yunpeng; WANG Meng; LIN Xin; LI Hualin; HUANG Weidong
State Key Laboratory of Solidification Processing; Northwestern Polytechnical University; Xi'an 710072
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SU Yunpeng; WANG Meng; LIN Xin; LI Hualin; HUANG Weidong. Microstructure of Zn-2%Cu Alloy Under Laser Rapid Melting—Solidification. Acta Metall Sin, 2005, 41(1): 67-.

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Abstract  Laser surface remelting experiments have been performed on Zn-2%Cu alloy with a 5 kW continous wave CO2 laser. With increasing scanning rate from 6 mm/s to 1207 mm/s, the microstructure transition from light band to lamellar structure, cell, and finally to absolute stability planar, has been clearly observed in the laser molten pool. The experiment results are in good agreement with the prediction of interface response function calculated with Lin's numerical model for cellular/dendritic growth and Jackson-Hunt model for eutectic growth.
Key words:  Zn-2%Cu      peritectic alloy      laser surface remelting      
Received:  07 January 2004     
ZTFLH:  TG244  

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https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2005/V41/I1/67

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