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Microstructure investigation of aluminum-rich titanium aluminum alloys

Posted on:2011-02-04Degree:M.SType:Thesis
University:The University of Texas at El PasoCandidate:Pham, DavidFull Text:PDF
GTID:2441390002968413Subject:Engineering
Abstract/Summary:
The microstructures of Ti-Al alloys with 70-80 wt% Al were investigated. Aluminum wire (99.999%) and TiH2 powder (99.7%) were used to produce the sample compositions inside a vertical tube furnace at 1600°C in an Ar atmosphere. Argon is purified through a dehumidification and deoxidation system. Magnesium perchlorate Mg(ClO4)2 acts as a desiccant and titanium sponge pulls oxygen from the Ar in furnaces operating at 800°C and 750°C. X-ray diffraction and an optical microscope are used to identify phases and compositions.
Keywords/Search Tags:Aluminum, Alloys
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