Paper Title:
Directional Solidification of Undercooled Hypoeutectic Silver-Copper Alloy Melt
  Abstract

Directional solidification of the undercooled melt which combines melt undercooling with conventional directional solidification is a new method of obtaining directional structure. This method is used to realize the directional solidification of the undercooled Ag70.3Cu29.7 melt. The experiment is performed in two steps: The undercooled melt is obtained by glass fluxing, and the above specimen is remelted and excited with Ga-In-Sn coolant. By this method, directional solidification dendrites of Ag70.3Cu29.7 alloy are achieved successfully. The columnar dendrites are straight and fine. The primary arm spacing is 21µm in average for a 65K undercooling, as compared to 38µm for a 32K undercooling. This confirms that higher undercooling promotes finer dendritic microstructures.

  Info
Periodical
Materials Science Forum (Volumes 475-479)
Main Theme
Edited by
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Pages
2607-2610
DOI
10.4028/www.scientific.net/MSF.475-479.2607
Citation
Y. Y. Lu, H. Zheng, F. Q. Xie, J. G. Li, "Directional Solidification of Undercooled Hypoeutectic Silver-Copper Alloy Melt", Materials Science Forum, Vols. 475-479, pp. 2607-2610, 2005
Online since
January 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Walman Benício de Castro
Abstract:Rapid Solidification Processing (RSP), of metals and alloys, is establish by increasing of the undercooling applying high cooling rates (102...
201
Authors: Min Qu, Lin Liu, Ming Zhao, Feng Bin Liu, Guang Ping He
Abstract:The microstructure evolution of Al-Cu alloys with different compositions is investigated in directional solidification. Two distinctly...
729
Authors: Zhi Ming Zhou, Li Wen Tang, Wei Jiu Huang, Jian Jun Hu, Tao Zhou, Kang Chen, Cheng Yun Peng, Hua Xia
Abstract:Microstructure of Cr-rich phase in undercooled hypereutectic Cu95Cr5 alloys was studied by using arc melting,...
691
Authors: Sheng Bao Luo, Wei Li Wang, Liu Hui Li, Zhen Chao Xia, Bing Bo Wei
Symposium S: Materials for Mechanical Engineering and Processing Technology
Abstract:The undercooled Fe50Cu50 alloy experiences a metastable liquid phase separation and separates into a Fe-rich zone and a...
299