An analysis of the flow stress of a two-phase alloy system, Ti-6Al-4V
- Univ. of Florida, Gainesville, FL (United States). Dept. of Materials Science and Engineering
An analysis of the tensile deformation behavior of a two-phase body-centered cubic (bcc)-hexagonal close-packed (hcp) alloy, Ti-6Al-4V, has been made. This has shown that the temperature dependence of the flow stress, the logarithm of the effective stress, and the strain-rate sensitivities can be described by simple analytical equations if the thermally activated strain-rate equation contains the Yokobori activation enthalpy H = H{sup 0} ln ({sigma}*{sub 0}/{sigma}*), where H{sup 0} is a constant, {sigma}* the effective stress, and {sigma}*{sub 0} its 0 K value. The flow stress-temperature plateau region (500 to 600 K) also can be rationalized analytically in terms of oxygen dynamic strain aging in the alpha phase.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 438559
- Journal Information:
- Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Journal Name: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science Journal Issue: 12 Vol. 27; ISSN 1073-5623; ISSN MMTAEB
- Country of Publication:
- United States
- Language:
- English
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