Experimental and Theoretical Investigation on Phase Formation and Mechanical Properties in Cr–Co–Ni Alloys Processed Using a Novel Thin-Film Quenching Technique

• DOI: 10.1021/acscombsci.9b00170
• Publication Date: 2020-04-14T21:30:46Z
• Authors: Dennis Naujoks; Mike Schneider; Steffen Salomon; Janine Pfetzing-M...; Aparna Puchakayal...; Thomas Hammerschmidt; Ralf Drautz; Jan Frenzel; Aleksander Kostka; Gunther Eggeler; Guillaume Laplanche; Alfred Ludwig
• Keywords: Chromium; Nickel; Alloys; Temperature; Cobalt; 02 engineering and technology; 0210 nano-technology; Density Functional Theory

The Cr-Co-Ni system was studied by combining experimental and computational methods to investigate phase stability mechanical properties. Thin-film materials libraries were prepared quenched from high temperatures up 700 °C using a novel quenching technique. It could be shown that wide A1 solid solution region exists in the system. To validate results obtained thin-film libraries, bulk samples of selected compositions arc melting, data additionally compared DFT calculations. are good agreement with measured lattice parameters elastic moduli. increase addition Co Cr, more pronounced effect for latter. ∼20 atom % Cr similar hardening ∼40 Co.