Nauka innov. 2005, 1(2):44-57

O.M. Ivasishin1, D.G. Savvakin1, К.А. Bondareva1, V.S. Moxson2, V.A. Duz2
1 G. V. Kurdyumov Institute for Metal Physics , NAS of Ukraine, Kyiv
2 ADMA Products, Inc., Hudson, Ohio, USA


Production of Titanium Alloys and Components by Cost-Effective Powder Metallurgy Approach for Wide Industrial Application

Section: Scientific and Technical Innovative Projects of National Academy of Sciences of Ukraine
Language: Russian
Abstract: Production of powder metallurgy titanium alloys and components can lead to a substantial reduction in the cost of parts compared to the more conventional cast and wrought processes and, therefore, has the potential to increase the use of titanium. In this study Ti-6Al-4V, Ti-5Al-2.5Fe and Ti-8Mn materials were synthesized with simplest press and sinter technique using blended elemental powder metallurgy. Final porosity which influences the mechanical properties is critical issue in this approach. It was shown that use of hydrogenated titanium powder instead of traditional titanium powder combined with master alloy additions significantly improved the synthesis in sense that higher relative density (up to 99 %, i.e. density close to theoretical), better chemical homogeneity, uniform sintered microstructure, the high mechanical properties and the lowest cost were achieved. Sintered materials had tensile and fatigue properties that rival those of conventionally processed alloys. This approach is particularly amenable to the production of components in the cost-sensitive auto industry.
Key words: titanium alloys, powder alloys, synthesis, stress-strain properties.

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