Journal ArticleDOI
Thermomechanical processing of beta titanium alloys—an overview
Isaac Weiss,S. L. Semiatin +1 more
TLDR
In this paper, the thermomechanical processing of beta titanium alloys in general and high temperature deformation mechanisms, microstructure control during TMP, and final mechanical properties in particular are reviewed.Abstract:
Thermomechanical processing (TMP) is associated with two major requirements: (i) to produce usable shapes through primary working (ingot breakdown) and secondary mill operations (hot rolling or forging) and (ii) to optimize mechanical properties through microstructure control during the different stages of the thermomechanical process. This paper reviews the thermomechanical processing of beta titanium alloys in general and high temperature deformation mechanisms, microstructure control during TMP, and final mechanical properties in particular.read more
Citations
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Journal ArticleDOI
Perspectives on Titanium Science and Technology
TL;DR: In this paper, the complexity and variety of fundamental phenomena in this material system with a focus on phase transformations and mechanical behaviour are discussed. And the challenges that lie ahead in achieving these goals are delineated.
Journal ArticleDOI
Segregation mediated heterogeneous structure in a metastable β titanium alloy with a superior combination of strength and ductility
TL;DR: In this work, instead of addressing the segregation problems, the segregation was utilized to develop a novel microstructure consisting of a nanometre-grained duplex (α+β) structure and micrometre scale β phase with superior mechanical properties.
Journal ArticleDOI
A Review of Metastable Beta Titanium Alloys
R. Prakash Kolli,Arun Devaraj +1 more
TL;DR: In this article, a broad and extensive review of beta titanium alloys is provided, including phase stability, development history, thermo-mechanical processing and heat treatment, and stress-induced transformations.
Journal ArticleDOI
Investigation of early stage deformation mechanisms in a metastable β titanium alloy showing combined twinning-induced plasticity and transformation-induced plasticity effects
Fan Sun,J.Y. Zhang,Matthieu Marteleur,Thierry Gloriant,Philippe Vermaut,Denis Laillé,Philippe Castany,Caroline Curfs,Pascal Jacques,Frédéric Prima +9 more
TL;DR: In this paper, a metastable β Ti-12 wt.% Mo alloy was investigated in situ synchrotron X-ray diffraction, electron backscatter diffraction and transmission electron microscopy observations to investigate the deformation mechanisms and microstructure evolution sequence.
Journal ArticleDOI
State of the Art in Beta Titanium Alloys for Airframe Applications
J. D. Cotton,Robert D. Briggs,Rodney R. Boyer,Sesh A. Tamirisakandala,Patrick Russo,Nikolay Shchetnikov,John C. Fanning +6 more
TL;DR: In this article, the authors examine the evolution of this important class of materials and the current status in airframe applications and speculates on challenges for expanding their use, and suggest that the major limitation on expansion into new applications is the cost.
References
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Strength of metals and alloys
TL;DR: The paper as discussed by the authors presents the papers given at a conference on the mechanical properties of metals and alloys, including hardening, anisotropy and texture, phase transformations, creep resistance, plasticity, deformations, microstructure, fracture properties, fatigue, wear resistance, temperature effects, stress analysis, and recrystallization.
Journal ArticleDOI
The Recrystallization Process in Some Polycrystalline Metals
TL;DR: In this paper, a theory based on the known form of the recrystallization kinetics without necessarily introducing any anisotropy of grain boundary mobility is proposed, which is identical to the activation energy for grain boundary migration.
Book ChapterDOI
Recovery and Recrystallization during High Temperature Deformation
H.J. McQueen,John J. Jonas +1 more
Journal ArticleDOI
Modification of alpha morphology in Ti-6Al-4V by thermomechanical processing
TL;DR: In this paper, the modification of alpha lamellar phase in Ti-6A1-4V by hot working was investigated with the aim of controlling morphology (aspect ratio) and final grain size.
Journal ArticleDOI
Self-diffusion of Ti, Zr, and Hf in their hcp phases, and diffusion of Nb95 in hcp Zr
F. Dyment,C. M. Libanati +1 more
TL;DR: In this paper, preliminary results for the self-diffusion constants of α-(hexagonal cp) Hf and new values for α-(hcp) Zr are given.