Paper Title:
Investigation on the Preparation Processes of Cu-Bi Master Alloy
  Abstract

The Microstructure of Cu-Bi master alloy with different melt processes, such as different melting temperature and holding time, was observed by PHILIPS-XL30 scanning electron microscopy (SEM); phase analysis was conducted by Miniflex X-ray diffraction(XRD); Magix(PW2424) X-ray fluorescence analyzer(XRF) was used to analyze chemical compositions of Cu-Bi master alloy. The results show that there are Cu and Bi two phases in the Cu-Bi master alloy; The yielding rate of bismuth decreases with the rising melting temperature. It decreases slowly between 1100 °C to 1150 °C,while it decreases rapidly between 1150 °C to 1200 °C.The bismuth particles in the Cu-Bi master alloy prepared at 1100 °C are much larger than those prepared at 1150 °C,while the size of bismuth particles change little from 1150 °C to 1200 °C. So the better melting temperature of preparing Cu-Bi master alloy is 1150 °C.The yielding rate of bismuth decreases with the holding time increasing. But when the holding time is too short, there are large bismuth particles in Cu-Bi alloy .So the better holding time is 120s.

  Info
Periodical
Advanced Materials Research (Volumes 335-336)
Chapter
Chapter 5: Metal Alloy Materials
Edited by
Yun-Hae Kim, Prasad Yarlagadda, Xiaodong Zhang and Zhijiu Ai
Pages
841-844
DOI
10.4028/www.scientific.net/AMR.335-336.841
Citation
L. N. Zhang, B. X. Liu, "Investigation on the Preparation Processes of Cu-Bi Master Alloy", Advanced Materials Research, Vols. 335-336, pp. 841-844, 2011
Online since
September 2011
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Price
$32.00
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