2003 / Solid Freeform Fabrication Proceedings
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Author H. Kyogoku (1), J. A. Ramos (2) and D. L. Bourell (3); (1) Department of Mechanical Engineering, Kinki University, Higashihiroshima, Hiroshima 739-2116 Japan; (2) Department of Mechanical Engineering and Metallurgy, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Santiago, Chile; (3) Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712
Source Solid Freeform Fabrication Proceedings, 2003, pp 668-675.
Abstract The applicability of laser melting in fabrication of Ti-Ni shape memory alloy was investigated experimentally. Elemental powders of Ti and Ni and mechanically alloyed (MA) TiNi powder were used to fabricate specimens. The effects of powder characteristics on the microstructure and shape memory characteristics of the alloy were examined. The morphology and microstructure of the laser-melted specimens were varied with fabrication conditions. Parts fabricated from elemental powders exhibited a shape memory effect, but those from MA powder did not exhibit it, although the latter showed more homogeneous microstructure than the former. (Auth abstract) [References: 11] XX
Solid Freeform Fabrication Proceedings can be obtained from: The Solid Freeform Fabrication Symposium
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