الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
In this work, an investigation of mechanical properties of powder metallurgy (PM) compacts was carried out.
As it is well known, deformation and fracture of PM compacts in forming are quite different than these for solid parts.
This is due to the presence of pores in the PM compacts, which gives relative density (compact density / theoretical density ) less than 100 %.
The effect of relative density on the behaviour of PM compacts in upsetting was studied.
Two theories characterizing PM compact behaviour during deformation were reviewed :
the first developed by Kuhn and Downey (1973 ) and the second by HWang and Kobayashi (1990 )