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Solid state welding of medium-entropy CrCoNi with heterogeneous, partially recrystallized microstructures

https://doi.org/10.1016/j.msea.2021.141425

Slone, C.E. ; Barnett, B. ; Georgin, B. ; Vivek, A. ; George, E.P. ; Daehn, G.S. ; Mills, M.J. ( January 2021 , Materials science engineering)

Heterogeneous, partially recrystallized (PRX) microstructures have recently been used to improve strength-ductility combinations in high-entropy alloys. However, these microstructures are incompatible with conventional joining processes that require melting or prolonged exposure to elevated temperatures. This work presents an initial exploration of solid state joining in this challenging condition using vaporizing foil actuator welding (VFAW) applied to PRX equiatomic alloy CrCoNi.
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Elevated temperature microstructure evolution of a medium-entropy CrCoNi superalloy containing Al,Ti

https://doi.org/10.1016/j.jallcom.2019.152777

Slone, C.E. ; George, E.P. ; Mills, M.J. ( March 2020 , Journal of Alloys and Compounds)

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Deactivating deformation twinning in medium-entropy CrCoNi with small additions of aluminum and titanium

https://doi.org/10.1016/j.scriptamat.2019.11.053

Slone, C.E. ; LaRosa, C.R. ; Zenk, C.H. ; George, E.P. ; Ghazisaeidi, M. ; Mills, M.J. ( March 2020 , Scripta Materialia)

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SEM & STEM multi-scale characterization of fatigue damage in CrCoNi medium-entropy alloy with fully recrystallized microstructure.

https://doi.org/DOI: https://doi.org/10.1017/S1431927620020851

Mazánová, V. ; Heczko, M. ; Slone, C.E. ; Kuběna, I. ; Tobiáš, J. ; George, E.P. ; Kruml, T. ; Polák, J. ; Mills, M.J. ( January 2020 , Microscopy and microanalysis)

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Achieving ultra-high strength and ductility in equiatomic CrCoNi with partially recrystallized microstructures

https://doi.org/10.1016/j.actamat.2018.12.015

Slone, C.E. ; Miao, J. ; George, E.P. ; Mills, M.J. ( February 2019 , Acta Materialia)

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