Paper Title:

A Study on Manufacture of SiCp/Fe Composites by Specimen Current Heating Hot Press Sintering

Periodical Materials Science Forum (Volumes 561 - 565)
Main Theme PRICM 6
Edited by Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages 705-708
DOI 10.4028/www.scientific.net/MSF.561-565.705
Citation Gang Wang et al., 2007, Materials Science Forum, 561-565, 705
Online since October, 2007
Authors Gang Wang, Yu Fang Yang, Ya Ping Zong
Keywords Hot-Press Sintering, Iron-Matrix Composites, Materials Processing, Specimen Current Heating
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Abstract

A specimen current heating sintering process was employed to manufacture SiC particulate reinforced iron matrix composite. The results show that mechanical properties of the composite can be improved significantly with increasing pressure level, voltage, sintering time. It is found that short sintering time, fast heating and uniformly heating, surface activation of particles can be accomplished in specimen current heating hot press sintering to avoid oxidation degradation of Fe powder, and to produce fine microstructure, which contribute the main reasons for achieving higher density and higher properties. The best properties achieved so far for the composite are: density is 99.90%, Brinell hardness is 416HB and tensile strength is 838MPa.