Nanocrystalline high-entropy alloys. Issue 18 (22nd August 2017)

• Record Type: Journal Article
• Authors: Koch, Carl C.
• Is Part Of: Journal of materials research. Volume 32:Issue 18(2017)
• Page Start: 3435
• Page End: 3444
• Publication Date: 2017-08-22
• Subjects: alloy, -- mechanical alloying, -- nanostructure; Materials -- Research -- Periodicals; 620.1105
• DOI: 10.1557/jmr.2017.341
• Languages: English
• ISSNs: 0884-2914

Abstract

Abstract: Abstract : This article is a review of research on nanostructured high-entropy alloys with emphasis on those made by the severe plastic deformation methods of mechanical alloying and high-pressure torsion. An example of thin film refractory metal alloys made by magnetron sputtering is also presented. The article will begin with a discussion of the seminal research of B.S. Murty and co-workers who first produced nanocrystalline high-entropy alloys by mechanical alloying of powders. This will be followed by a listing of research, in mostly chronological order, of mainly 3d transition metal alloys made nanocrystalline by mechanical alloying. Research on the well-studied Cantor alloy, from the literature and the author's laboratory will be presented. The author's and co-worker's research on a low-density high-entropy alloy with single-phase fcc or hcp structure and an extremely high strength (hardness)-to-weight ratio will be described.