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- Title
Reaction procedure of a graphite fiber reinforced Ti-Al composite produced by squeeze casting- in situ reaction.
- Authors
Wu, Gaohui; Liu, Yanmei; Xiu, Ziyang; Jiang, Longtao; Yang, Wenshu
- Abstract
The in situ reaction procedure and microstructure evolution of a graphite fiber reinforced Ti-Al composite (Grf/Ti-Al) was investigated, and the stability of TiAl3 at high temperature was discussed. As-cast material was prepared by pressing molten pure aluminum into a preform, which was composed of titanium particles and graphite fibers. The in situ reaction procedure of the as-cast material was investigated by differential scanning calorimetry (DSC), and phases in the products were detected by X-ray diffraction (XRD). Experimental results showed that TiAl3 was formed first. With an increase in temperature, TiC and Al4C3 were observed, but TiAl3 decreased. In the final product, Al2O3 and TiO2 were observed. It was considered that the previous forming TiAl3 decomposed, then TiC precipitated, and subsequently, oxidation resulted in the formation of Al2O3 and TiO2.
- Publication
Rare Metals, 2010, Vol 29, Issue 1, p98
- ISSN
1001-0521
- Publication type
Article
- DOI
10.1007/s12598-010-0017-3