Paper Titles
Ageing of C-Containing and C-Free Ti-15Cr and Ti-15-3
p.3595
Melting and Casting of Titanium Alloys
p.3601
Constitutive Analysis of the High-Temperature Deformation Behavior of Single Phase α-Ti and α+β Ti-6Al-4V Alloy
p.3607
The Effect of Oxygen on Heat Treatment Behavior of Titanium-50mass%Tantalum-5mass%Zirconium Alloy
p.3613
Temperature and Strain Rate Effects on Plastic Deformation of Titanium Alloys
p.3619
Beta Phase Decomposition in a TiAl Alloy during Continuous Cooling
p.3625
Production of Functionally-Graded Samples Using Simultaneous Powder and Wire-Feed
p.3631
An Experimental and Modelling Study of Laser Fabricated Samples
p.3637
New Process-Microstructure Method for Affordable 2024 Series Aerospace Aluminum Alloys
p.3643

Temperature and Strain Rate Effects on Plastic Deformation of Titanium Alloys

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Abstract:

Since titanium alloys are the most promising structural materials for the high velocity vehicles, the impact tensile strength of the materials is presently investigated. Three kinds of aging treatments on the beta-titanium alloy were performed, and the tensile deformation behaviors were identified in the wide range of the temperature and the strain rate. The stress－strain relations of the titanium alloy significantly depend on the temperature and the strain rate investigated. Thermally activated process concept was applied to explain the experimental results, and the stress-strain relations at high strain rates were well understood with taking account of adiabatic heating effect. It has been found that the stress-strain curves depend on the microstructures, while the temperature and the strain rate effects are almost independent of the different aging treatments.

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Periodical:

Materials Science Forum (Volumes 539-543)

Pages:

3619-3624

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.539-543.3619

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Online since:

March 2007

Authors:

K. Ogawa

Keywords:

Heat Treatment, High Strain Rate, Split Hopkinson Bar, Strain Rate Effect, Strain-Stress Relation, Temperature Dependence, Temperature-Strain Rate Parameter, Tension Test, Thermal Activation, TiAl

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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