Microstructure and mechanical properties of reactive sintered intermetallic compound Al3Ti fabricated by hot-pressing method.

Suzuki, Hiroshi; Yamabayashi, Y.; Nozue, Akira; Okubo, Tadatsune

doi:10.2464/jilm.44.641

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2015

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“…However, obtaining a material with a desirable phase composition during a high-temperature hot-press reaction sintering of pure metallic components is a complicated task. For example, obtaining the Al 3 Ti phase by sintering of Ti and Al powders taken in stoichiometric and nearstoichiometric ratios was always accompanied by the formation of Ti 3 Al and TiAl compounds [14]. However, the amount of Ti-enriched phases decreased with an increase in Al in the initial powder mixture.…”

Section: Resultsmentioning

confidence: 99%

Formation of Intermetallic Structures by Spark Plasma Sintering of Titanium and Aluminum Powders

Lazurenko

Mali²,

Belousova

et al. 2015

AMM

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Sintered compacts fabricated by spark plasma sintering (SPS) at 1050оС were investigated. Titanium and aluminum powders in a ratio of 25 % (at.) and 75 % (at.) respectively were chosen as starting materials. Powder mixture heating up to elevated temperatures led to a partial loss of an aluminum component and to the formation of a multiphase structure consisting of Al3Ti, Al2Ti, AlTi and AlTi3. The density of sintered powder mixtures was 3.7 g/cm3; an average microhardness value was about 470 HV.

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Section: Resultsmentioning

confidence: 99%