Non-equimolar Cantor high entropy alloy fabrication using metal powder cored wire arc additive manufacturing
Anatoliy Zavdoveev, Andrey Klapatyuk, Thierry Baudin, Eric MacDonald, Dhanesh G. Mohan, J.P. Oliveira, Alex Gajvoronskiy, V.D. Poznyakov, Hyoung Seop Kim, François Brisset, Мaksym Khokhlov, Mark Heaton, Massimo Rogante, Mykola Skoryk, Dmitry Vedel, Roman Kozin, І.М. Klochkov, Svіatoslav Motrunich
Abstract
In the current contribution, the wire arc additive manufacturing of non-equimolar Co-Cr-Fe-Mn-Ni high-entropy alloy using gas metal arc welding (GMAW) with metal powder-cored wire (MPCW) is proposed. The powder's filler of designed wire feedstock contains Co-Cr-Mn-Ni components in equal atomic amounts relative to each other with Fe metal stripe as a shield. The proposed method provides the possibility to build bulk high-entropy alloy samples with the desired characteristics. Developed in the current work approach is superior in a number of indicators to such alternative methods of obtaining bulk HEAs as melting in a vacuum, plasma arc melting, selective laser melting, or electron beam melting.