Design of titanium alloys showing plasticity induced transformation
Design of titanium alloys showing plasticity induced transformation
Due to Plasticity induced Transformation in metastable β-Ti-10V-2Fe- 3Al (wt.%) alloy (PiTTi) upon deformation, a noticeable improvement in mechanical properties is observed. Among the main factors controlling such effect are the β grain size and its composition. Such phase transforms into martensite upon quenching. Its martensite start temperature (Ms) varies in accordance with its composition. Following Ghosh and Olson's theory, a thermodynamics based model to predict the compositional dependence of the Ms temperature is developed, and successfully validated for Ti-X (X = Fe, Cr, Mo, V, Nb, Zr and Al) binary alloys. The model has been used to design new alloys displaying a tailored PiTTi effect.
Heat treatment, M temperature, Martensitic phase transformation, Mechanical properties, Thermodynamics, Titanium
405-410
Neelakantan, Suresh
54f12c77-36a8-4bd0-8940-eb3657a5f750
Rivera-Díaz-del-Castillo, P. E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Van Der Zwaag, Sybrand
ad11f134-8a43-4635-9feb-7c3d01158f4b
2010
Neelakantan, Suresh
54f12c77-36a8-4bd0-8940-eb3657a5f750
Rivera-Díaz-del-Castillo, P. E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Van Der Zwaag, Sybrand
ad11f134-8a43-4635-9feb-7c3d01158f4b
Neelakantan, Suresh, Rivera-Díaz-del-Castillo, P. E.J. and Van Der Zwaag, Sybrand
(2010)
Design of titanium alloys showing plasticity induced transformation.
In THERMEC 2009 Supplement.
vol. 89-91,
.
(doi:10.4028/www.scientific.net/AMR.89-91.405).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Due to Plasticity induced Transformation in metastable β-Ti-10V-2Fe- 3Al (wt.%) alloy (PiTTi) upon deformation, a noticeable improvement in mechanical properties is observed. Among the main factors controlling such effect are the β grain size and its composition. Such phase transforms into martensite upon quenching. Its martensite start temperature (Ms) varies in accordance with its composition. Following Ghosh and Olson's theory, a thermodynamics based model to predict the compositional dependence of the Ms temperature is developed, and successfully validated for Ti-X (X = Fe, Cr, Mo, V, Nb, Zr and Al) binary alloys. The model has been used to design new alloys displaying a tailored PiTTi effect.
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Published date: 2010
Venue - Dates:
6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009, , Berlin, Germany, 2009-08-25 - 2009-08-29
Keywords:
Heat treatment, M temperature, Martensitic phase transformation, Mechanical properties, Thermodynamics, Titanium
Identifiers
Local EPrints ID: 492961
URI: http://eprints.soton.ac.uk/id/eprint/492961
ISSN: 1022-6680
PURE UUID: f931f7ad-eca3-40a8-bf88-54a572d34c59
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Date deposited: 21 Aug 2024 17:03
Last modified: 22 Aug 2024 02:07
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Contributors
Author:
Suresh Neelakantan
Author:
P. E.J. Rivera-Díaz-del-Castillo
Author:
Sybrand Van Der Zwaag
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