Elsevier

Scripta Materialia

Volume 173, December 2019, Pages 70-74
Scripta Materialia

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

https://doi.org/10.1016/j.scriptamat.2019.07.045Get rights and content

Abstract

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.

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Declaration of Competing Interest

None.

Acknowledgments

This work was supported by FAPESP, Fundação de Amparo à Pesquisa do Estado de São Paulo, [grant number 2018/08778-4], CNPq, Conselho Nacional de Desenvolvimento Científico e Tecnológico - Brasil (CNPq) [grant number 424645/2018-1] and the Center for Advanced Non-Ferrous Structural Alloys (CANFSA), a National Science Foundation Industry/University Cooperative Research Center (I/UCRC) [Award No. 1624836], at the Colorado School of Mines and Iowa State University, and the Office of Naval Research

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