Design of highly formable and strong titanium alloys through plasticity induced transformation

Neelakantan, Suresh and Rivera-Díaz-del-Castillo, Pedro E J and Van Der Zwaag, Sybrand (2008) Design of highly formable and strong titanium alloys through plasticity induced transformation. In: TMS2008 - 137th Annual Meeting and Exhibition Supplemental Proceedings. UNSPECIFIED, USA, pp. 357-362. ISBN 9780873397162

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Abstract

Preliminary studies show the existence of Plasticity induced Transformation in metastable β-Titanium alloys (PiTTi), an effect similar to TRIP in steels. Extensive studies have been carried out to understand the defining heat treatment parameters to promote PiTTi effect in Ti-10V-2Fe-3Al (wt.%) alloy for β and/or α+β conditions. Compression testing results show stress-induced martensite formation in β and β+(α+β) microstructures with ∼20% increase in strength. Based on Ghosh and Olson theory for martensite nucleation, a model was developed to estimate the M s temperature, a critical parameter for PiTTi optimization. The chemical inhomogeneities in the β phase are employed to predict its PiTTi ability.

Item Type:
Contribution in Book/Report/Proceedings
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2500/2506
Subjects:
ID Code:
125468
Deposited By:
Deposited On:
24 May 2018 13:16
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 10:49