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An in situ investigation of the deformation mechanisms in a β-quenched Ti-5Al-5V-5Mo-3Cr alloy

Barriobero-Vila, Pere and Gussone, Joachim and Kelm, Klemens and Haubrich, Jan and Stark, Andreas and Schell, Norbert and Requena, Guillermo (2018) An in situ investigation of the deformation mechanisms in a β-quenched Ti-5Al-5V-5Mo-3Cr alloy. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing, 717, pp. 134-143. Elsevier. DOI: 10.1016/j.msea.2018.01.077 ISSN 0921-5093

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Official URL: http://dx.doi.org/10.1016/j.msea.2018.01.077

Abstract

The sequence of activation of deformation mechanisms in a near-β Ti-5Al-5Mo-5V-3Cr alloy quenched from the β-field is investigated as a function of strain during uniaxial compression at 0.001 s−1 up to ε = 0.041. Bulk in situ high energy synchrotron X-ray diffraction is applied to follow continuously the evolution of the microstructure of the alloy during deformation and is complemented with metallographic analysis. Stress induced β → α″ transformation takes place together with grain rotation of β upon reaching the yield stress of the alloy at ε = 0.021. During further loading, formation of β sub-grain cells is activated at ε ≥ 0.03. The stress-induced martensite forms with a strong texture of {200} α″ planes perpendicular to the compression direction.

Item URL in elib:https://elib.dlr.de/118937/
Document Type:Article
Additional Information:Referierte Publikation - Ja
Title:An in situ investigation of the deformation mechanisms in a β-quenched Ti-5Al-5V-5Mo-3Cr alloy
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Barriobero-Vila, Perepere.barrioberovila (at) dlr.deUNSPECIFIED
Gussone, Joachimjoachim.gussone (at) dlr.deUNSPECIFIED
Kelm, Klemensklemens.kelm (at) dlr.deUNSPECIFIED
Haubrich, JanJan.Haubrich (at) dlr.deUNSPECIFIED
Stark, AndreasUNSPECIFIEDUNSPECIFIED
Schell, NorbertUNSPECIFIEDUNSPECIFIED
Requena, GuillermoRequena, Guillermo <Guillermo.Requena (at) dlr.de>UNSPECIFIED
Date:January 2018
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:717
DOI :10.1016/j.msea.2018.01.077
Page Range:pp. 134-143
Publisher:Elsevier
ISSN:0921-5093
Status:Published
Keywords:β titanium alloys; Deformation; Stress-induced martensite; Planar slip; Phase stability; In situ high energy synchrotron X-ray diffraction
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: Barriobero Vila, Pere
Deposited On:14 Feb 2018 18:47
Last Modified:06 Sep 2019 15:28

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