Paper Title:
Expansion Behavior of Iron-Copper Compact from (FeCu) Pre-Alloyed Powder
  Abstract

Dilatometric curves of iron-copper compact made from elemental or pre-alloyed powder were compared in order to study its expansion mechanism. The compacts from a mixture of elemental iron and copper powders showed the maximum expansion at the copper powder content of 7.44mass% and at the sintering temperatures above the copper melting-point. In the case of the compacts from a mixture of iron pre-alloyed powder of (Fe- 3.44mass%Cu) and copper powder, the maximum expansion which is lower than the former case was obtained at the additive copper powder content of 4.00mass%. But the compact from a mixture of iron pre-alloyed powder of (Fe-7.18mass%Cu) and copper powder showed only shrinkages at any additive copper powder content. The penetration of liquid copper into the interstices between solid grains was observed in all sintered compacts. The iron-copper compacts containing the same content of copper powder showed a very different expansion behavior depending on the amount of copper content in the starting iron raw powder.

  Info
Periodical
Materials Science Forum (Volumes 534-536)
Edited by
Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim
Pages
517-520
DOI
10.4028/www.scientific.net/MSF.534-536.517
Citation
Y. C. Kim, M. J. Suk, "Expansion Behavior of Iron-Copper Compact from (FeCu) Pre-Alloyed Powder", Materials Science Forum, Vols. 534-536, pp. 517-520, 2007
Online since
January 2007
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Price
$32.00
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