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http://dx.doi.org/10.3365/KJMM.2011.49.11.853

Compressive Deformation Behavior of Al-10Si-5Fe-1Zr Powder Alloys Consolidated by Spark Plasma Sintering Process  

Park, Sang-Choon (Division of Materials Science and Engineering, Inha University)
Kim, Mok-Soon (Division of Materials Science and Engineering, Inha University)
Kim, Kyung-Taek (Eco Materials & Processing Department, Korea Institute of Industrial Technology)
Shin, Seung-Young (Eco Materials & Processing Department, Korea Institute of Industrial Technology)
Lee, Jeong-Keun (R&D Center, Dong Yang Piston Co. Ltd.)
Ryu, Kwan-Ho (R&D Center, Dong Yang Piston Co. Ltd.)
Publication Information
Korean Journal of Metals and Materials / v.49, no.11, 2011 , pp. 853-859 More about this Journal
Abstract
Compressive deformation behavior of Al-10Si-5Fe-1Zr (wt%) alloy preform fabricated by SPS(spark plasma sintering) of gas atomized powder was investigated in the temperature range from 380 to $480^{\circ}C$ and at strain rates from $1.0{\times}10^{-3}$ to $1.0{\times}10^{0}s^{-1}$. Stress-strain curves showed a peak stress (${\sigma}_p$) during initial stage of deformation, followed by a steady state flow at all temperatures and strain rates tested. The (${\sigma}_p$) decreased with both increase in temperature and decrease in strain rate. Nearly full densification was found to occur in the compressively deformed specimens irrespective of test condition. TEM observation revealed a restricted grain growth during steady state flow.
Keywords
alloys; powder processing; microstructure; compression test;
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Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 1
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