Journal
SCRIPTA MATERIALIA
Volume 173, Issue -, Pages 70-74Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2019.07.045
Keywords
Multicomponent alloys; Transformation induced plasticity; In-situ characterization; Synchrotron X-ray diffraction; Strain hardening
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Funding
- FAPESP, Fundacao de Amparo a Pesquisa do Estado de Sao Paulo [2018/08778-4]
- CNPq, Conselho Nacional de Desenvolvimento Cientifico e Tecnologico - Brasil (CNPq) [424645/2018-1]
- Center for Advanced Non - Ferrous Structural Alloys (CANFSA)
- National Science Foundation Industry/University Cooperative Research Center (I/UCRC) [1624836]
- Office of Naval Research [N00014-18-1-2567]
- Colorado School of Mines
- Iowa State University
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [18/08778-4] Funding Source: FAPESP
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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. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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