Publication Date
2012
Document Type
Thesis
Committee Members
Balakrishna Cherukuri (Committee Member), Sharmila Mukhopadhyay (Committee Member), Raghavan Srinivasan (Advisor), Raghavan Srinivasan (Committee Member)
Degree Name
Master of Science in Engineering (MSEgr)
Abstract
Ti-6Al-4V has attractive properties such as high strength to weight ratio, good fatigue properties and excellent corrosion resistance and these properties have made this alloy an important material for the aerospace industry. In this thesis, the deformation behavior of Ti-6Al-4V with several processing histories, was studied by conducting isothermal constant strain rate compression tests over a temperature range of 829°C to 996°C (1525°F to 1825°F) and at strain rates of 10-2 s-1, 10-1 s-1 and 100 s-1. True stress versus true strain flow curves showed a peak stress followed by flow softening. The data was analyzed to obtain constitutive equations to describe the variation of flow stress as a function of strain, strain rate and temperature. The strain rate sensitivity values were found to increase as the temperature was increased, and the activation energy for deformation was found to be comparable to values reported in literature. Finite element simulations were carried out using the temperature corrected flow curves as input. The simulated and experimental results were found to be comparable to each other.
Page Count
105
Department or Program
Department of Mechanical and Materials Engineering
Year Degree Awarded
2012
Copyright
Copyright 2012, all rights reserved. This open access ETD is published by Wright State University and OhioLINK.
