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The flow behavior and microstructural evolution of Ti-5Al-5Mo-5V-3Cr during subtransus isothermal forging
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Jones, N. G., Dashwood, R. J., Dye, D. and Jackson, M. (2009) The flow behavior and microstructural evolution of Ti-5Al-5Mo-5V-3Cr during subtransus isothermal forging. Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science, Vol.40 (No.8). pp. 1944-1954. doi:10.1007/s11661-009-9866-5 ISSN 1073-5623.
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Official URL: http://dx.doi.org/10.1007/s11661-009-9866-5
Abstract
High-strength metastable beta alloys, for example, Ti-5Al-5Mo-5V-3Cr, have replaced steel as the material of choice for large components, such as the main truck beam on the latest generation of airframes. The production of these components is carried out by hot near-net-shape forging, during which process variable control is essential to achieve the desired microstructural condition and subsequent mechanical properties. The flow behavior and microstructural evolution during subtransus isothermal forging of Ti-5Al-5Mo-5V-3Cr has been investigated for two different starting microstructures and analysis has incorporated previously published results. The flow behavior, irrespective of initial microstructural condition, is found to be very similar at strains a parts per thousand yen0.35. It is thought that this is due to a common microstructural state being reached, where dynamic recovery of the beta phase is the dominating deformation mechanism. At strains < 0.35, the flow behavior is believed to be dominated by the morphology and volume fraction of the alpha phase. Small globular alpha particles are thought to have little effect on the flow behavior, while the observed flow softening is directly linked to the fragmentation of acicular alpha precipitates.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TN Mining engineering. Metallurgy |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
| Journal or Publication Title: | Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science | ||||
| Publisher: | Springer New York LLC | ||||
| ISSN: | 1073-5623 | ||||
| Official Date: | August 2009 | ||||
| Dates: |
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| Volume: | Vol.40 | ||||
| Number: | No.8 | ||||
| Number of Pages: | 11 | ||||
| Page Range: | pp. 1944-1954 | ||||
| DOI: | 10.1007/s11661-009-9866-5 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC) Doctoral Training Award | ||||
| Grant number: | ET/T26344/01 (EPSRC) |
Data sourced from Thomson Reuters' Web of Knowledge
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