Influence of retained hydride particles and microstructure on mechanical properties of PM produced Ti-6Al-4V alloy
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Compacts of Ti-6Al-4V alloy were produced via the powder metallurgy technique applying the hydride-dehydride process and hot isostatic pressing. The conditions of reversible hydride-dehydride process were controlled by chemical and X-ray diffraction analysis and scanning electron microscopy. Powders were pressed above and below the alpha - GT beta transus temperature. The presence of titanium hydrides and morphology of the microstructure have the direct influence on the tensile properties and fracture toughness of the Ti-6Al-4V alloy, but the effect of microstructure is more pronounced.
Кључне речи:Ti-Al-4V chips / Hydride dehydride process / Hot isostatic pressing / Microstructure / Mechanical properties / Fractography
Извор:Powder Metallurgy, 2011, 54, 1, 40-45
- Ministry of Science of the Republic of Serbia