Fabrication of TiAl by blended elemental powder semisolid forming

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/92525

Title: Fabrication of TiAl by blended elemental powder semisolid forming
Author(s): Wen, C. E.; Yasue, K.; Yamada, Y.
Abstract: Semisolid forming from blended elemental powders is investigated on Ti-Al alloy. The effects of the forming pressure, temperature, and pressure holding time on the density of the green billets are discussed. The forming method is outlined as follows: the mixture of the blended elemental powders are filled in a metal mold, and heated to approximately the melting point of aluminum. Thereafter, the forming pressure is loaded and held for the prescribed time. The pore-free green compacts are obtained under almost all the present forming conditions. However, pores are observed after alloying heat treatment. The volume fraction of the pores depends on the microstructures of the green billets. Experiments have also been carried out on the effects of the alloying heat treatment conditions on the mechanical properties of the compacts.
Publication type: Journal article
Source: Journal of Materials Science, Vol. 36, no. 7 (Apr 2001), pp. 1741-1745
Publication year: 2001
FOR Code(s): 0910 Manufacturing Engineering; 0912 Materials Engineering; 0913 Mechanical Engineering
Keyword(s): Elemental powders; Semisolid forming; Ti-Al alloy; Titanium aluminide
Publisher: Kluwer Academic Publishers
ISSN: 0022-2461
Publisher URL: http://dx.doi.org/10.1023/a:1017572624976
Peer reviewed