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THE INFLUENCE OF DEFORMATION MODES ON THE STRUCTURE AND PROPERTIES OF Al–Mg–Х POWDER COMPOSITES
III. THE INFLUENCE OF NANOSIZED SiC POWDER CONTENT AND DEFORMATION PROCESSING ON THE PROPERTIES OF THE AMg5 ALLOY POWDER COMPOSITE

K.Gogajev,
 
V.Voropaev,
 
O.Vdovychenko,
 
Y.Podrezov,
 
M.Gadzyra,
 
Y.Yevich
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2018, #09/10
http://www.materials.kiev.ua/article/2648

Abstract

The structure and mechanical properties of a powder composite with an AMg5 alloy metallic matrix hardened by SiC particles have been examined. The composite with 3% hardening phase shows the best combination of strength, ductility, and damping capacity. Additional deformation processing of the composite improves its strength but reduces ductility because of planar pores observed on the fractured surface of strongly deformed samples. It is shown that 30% strain hardening in the rolling process is not accompanied by reduction of ductility.


ELASTIC MODULI, HARDENING, NANOPARTICLE, PLASTICITY, POWDER COMPOSITE, STRENGTH

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