Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/19382
Title: Phase evolution in laser rapid forming of compositionally graded Ti-Ni alloys
Authors: Lin, X
Yue, TM 
Yang, HO
Huang, WD
Keywords: Functionally graded materials
Laser rapid forming
Microstructure evolution
Nickel
Titanium
Issue Date: 2009
Publisher: Asme-Amer Soc Mechanical Eng
Source: Journal of engineering materials and technology, transactions of the asme, 2009, v. 131, no. 4, p. 410021-410025 How to cite?
Journal: Journal of Engineering Materials and Technology, Transactions of the ASME 
Abstract: A graded binary titanium-nickel alloy with a compositional gradient, from elemental Ti to Ti-23.2 at. % Ni, has been successfully deposited using laser rapid forming. A metallurgical study of the phase evolution along the compositional gradient showed that a series of phase evolutions α→ α+β→ α+β+Ti2Ni→ β/B2 +Ti 2Ni have occurred. Phase formation and microstructure evolution along the compositional gradient was analyzed by Scheil-Gulliver and eutectic growth models. In particular, the morphology of the β/B2 +Ti2Ni anomalous and coupled eutectic is discussed in detail.
URI: http://hdl.handle.net/10397/19382
DOI: 10.1115/1.3184028
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