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Deformation Mechanisms Associated with Annealed Structures in a Ti-24Al-Nb Alloy

Published online by Cambridge University Press:  26 February 2011

Maria A. Morris  and
David G. Morris
Maria A. Morris
Affiliation:
Institute of Structural Metallurgy, University of Neuchâtel, Avenue de Bellevaux, 51, 2000 Neuchâtel, Switzerland.
David G. Morris
Affiliation:
Institute of Structural Metallurgy, University of Neuchâtel, Avenue de Bellevaux, 51, 2000 Neuchâtel, Switzerland.
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Abstract

Crystallographic and chemical analysis of the microstructures obtained by annealing a heavily deformed Ti-24Al-11 Nb alloy have been performed. The influence of the niobium distribution within the different phases present and the variation of degree of long range order caused by this distribution have been related to the deformation mechanisms leading to strain hardening at the early stages of deformation. In particular, slip band formation and twinning have been observed to occur within the (α2 phase according to the different degree of order measured.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 213: Symposium Q – High-Temperature Ordered Intermetallic Alloys IV , 1990 , 877
Copyright
Copyright © Materials Research Society 1991

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References

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