Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6928
Title: Deformation-induced ambient temperature α-to-β phase transition and nanocrystallization in (α + β) titanium alloy
Authors: Han, Y
Zhuang, H
Lu, J
Issue Date: Nov-2009
Source: Journal of materials research, Nov 2009, v. 24, no. 11, p. 3439-3445
Abstract: Ambient temperature α-to-β phase transition and nanocrystallization in the aged Ti–25Nb–3Mo–3Zr–2Sn titanium alloy was achieved by surface mechanical attrition treatment (SMAT). The phase transition occurs at α/β interfaces and extends to α phase interiors with increasing strain. It is irreversible and diffusion controlled. The stress-induced increase of Gibbs energy and enrichment of Nb may cause a high order of lattice instability of the α phase adjacent to the α/β interfaces and compel the α phase to β phase. The presence of fine α needles in the aged alloy and the phase transition from α to β with increasing strain are viewed to play a crucial role in the subsequent nanostructuring.
Keywords: Nanostructure
Phase transformation
Ti
Publisher: Cambridge University Press
Journal: Journal of materials research 
ISSN: 0884-2914
EISSN: 2044-5326
DOI: 10.1557/jmr.2009.0420
Rights: © 2009 Materials Research Society
The following article "Yong Han, Huaye Zhuang and Jian Lu (2009). Deformation-induced ambient temperature α-to-β phase transition and nanocrystallization in (α + β) titanium alloy. Journal of Materials Research, 24(11), pp 3439-3445. doi:10.1557/jmr.2009.0420." is available at http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7950261
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