Canelo-Yubero, David and Requena, Guillermo and Sket, Federico and Poletti, Cecilia and Warchomicka, Fernando and Daniels, John and Schell, Norbert and Stark, Andreas (2016) Load partition and microstructural evolution during in situ hot deformation of Ti–6Al–6V–2Sn alloys. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing, 657, pp. 244-258. Elsevier. DOI: 10.1016/j.msea.2016.01.059 ISSN 0921-5093
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Abstract
Two Ti–6Al–6V–2Sn alloys, with globular and lamellar microstructures, are deformed at 750 °C during tensile and compression tests. The lamellar microstructure shows softening and higher peak stress values than the globular microstructure as a consequence of the Hall–Petch effect. In-situ high energy Synchrotron diffraction experiments allow characterization of the load partition between α- and β-phases, plastic deformation mechanisms and texture evolution. The α-phase deforms mainly by rotation while the β-phase deforms by misorientation formation, acting merely as load transfer agent. The Taylor factor evolution of the α-phase and the annihilation of dislocations are analyzed qualitatively and quantitatively. The Taylor factor is connected to both the softening observed in the alloy with the lamellar microstructure and the texture development.
Item URL in elib: | https://elib.dlr.de/108456/ | |||||||||||||||||||||||||||
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Document Type: | Article | |||||||||||||||||||||||||||
Title: | Load partition and microstructural evolution during in situ hot deformation of Ti–6Al–6V–2Sn alloys | |||||||||||||||||||||||||||
Authors: |
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Date: | 2016 | |||||||||||||||||||||||||||
Journal or Publication Title: | Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing | |||||||||||||||||||||||||||
Refereed publication: | Yes | |||||||||||||||||||||||||||
Open Access: | No | |||||||||||||||||||||||||||
Gold Open Access: | No | |||||||||||||||||||||||||||
In SCOPUS: | Yes | |||||||||||||||||||||||||||
In ISI Web of Science: | Yes | |||||||||||||||||||||||||||
Volume: | 657 | |||||||||||||||||||||||||||
DOI : | 10.1016/j.msea.2016.01.059 | |||||||||||||||||||||||||||
Page Range: | pp. 244-258 | |||||||||||||||||||||||||||
Publisher: | Elsevier | |||||||||||||||||||||||||||
ISSN: | 0921-5093 | |||||||||||||||||||||||||||
Status: | Published | |||||||||||||||||||||||||||
Keywords: | Titanium alloys Synchrotron x-ray diffraction Hot deformation Load partition Plasticity Deformation mechanism | |||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||||||||||||||
HGF - Program: | Aeronautics | |||||||||||||||||||||||||||
HGF - Program Themes: | fixed-wing aircraft | |||||||||||||||||||||||||||
DLR - Research area: | Aeronautics | |||||||||||||||||||||||||||
DLR - Program: | L AR - Aircraft Research | |||||||||||||||||||||||||||
DLR - Research theme (Project): | L - Structures and Materials | |||||||||||||||||||||||||||
Location: | Köln-Porz | |||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Materials Research > Metallic Structures and Hybrid Material Systems | |||||||||||||||||||||||||||
Deposited By: | Requena, Guillermo | |||||||||||||||||||||||||||
Deposited On: | 29 Nov 2016 14:49 | |||||||||||||||||||||||||||
Last Modified: | 06 Sep 2019 15:28 |
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