Design and in-situ characterization of a strong and ductile co-rich multicomponent alloy with transformation induced plasticity

The Co55Cr40Ni5 multicomponent alloy was designed to be single-phase face centered cubic (FCC), display high strength, and have the ability to undergo transformation-induced plasticity (TRIP) during plastic deformation. The alloy was produced, and phase stability was monitored in-situ by synchrotron...

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Published inScripta materialia Vol. 173; pp. 70 - 74
Main Authors Coury, Francisco Gil, Santana, Diego, Guo, Yaofeng, Copley, John, Otani, Lucas, Fonseca, Solange, Zepon, Guilherme, Kiminami, Claudio, Kaufman, Michael, Clarke, Amy
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2019
Subjects
In-situ characterization
Multicomponent alloys
Strain hardening
Synchrotron X-ray diffraction
Transformation induced plasticity
Multicomponent alloys
In-situ characterization
Synchrotron X-ray diffraction
Transformation induced plasticity
Strain hardening
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Summary:The Co55Cr40Ni5 multicomponent alloy was designed to be single-phase face centered cubic (FCC), display high strength, and have the ability to undergo transformation-induced plasticity (TRIP) during plastic deformation. The alloy was produced, and phase stability was monitored in-situ by synchrotron X-ray diffraction during thermomechanical deformation to observe the formation and evolution of the hexagonal close packed (HCP) martensite phase as a function of applied stress. The alloy displays a good combination of strength and ductility, owing largely to the TRIP effect, which increases the strain hardening rate during deformation. [Display omitted]
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2019.07.045