Paper Title:
Influence of Growth Rate on the Solute Distribution of Directionally Solidified Cu-Ag-Zr Alloy
  Abstract

Cu-2wt.Ag-2wt.%Zr alloy was directionally solidified with different growth rates(V=10-200 um/s) at a constant temperature gradient(G=3.1 K/mm) in a modified Bridgman furnace. The influence of growth rate was investigated by observing the microstructure and measuring the solutes’ compositions within the Cu-matrix and dendrite boundaries. The experimental results show that increasing the growth rate, decreased both the primary and secondary arm spacing and increased micro-Vickers hardness. The solutes’ concentration also increased as a result of the back diffusion caused by a decreasing growth rate. The electrical conductivity depends on the solutes’ distribution.

  Info
Periodical
Edited by
George Ferguson, Ashvin Thambyah, Michael A Hodgson and Kelly Wade
Pages
192-195
DOI
10.4028/www.scientific.net/AMR.275.192
Citation
B. H. Kang, W. H. Lee, K. Y. Kim, H. Cho, J. S. Noh, "Influence of Growth Rate on the Solute Distribution of Directionally Solidified Cu-Ag-Zr Alloy", Advanced Materials Research, Vol. 275, pp. 192-195, 2011
Online since
July 2011
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$32.00
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