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Thursday, 7 August 2014

Entropy | Free Full-Text | Physical Properties of High Entropy Alloys


High entropy alloys (HEAs) are a novel class of metallic material with a distinct design strategy [1,2]. Different from conventional alloys that are typically designed based on one or two principal
elements, HEAs are composed of more than five principal elements. It has been reported that
HEAs possess many attractive properties, such as high hardness [3–7], outstanding wear resistance [8,9], good fatigue resistance characteristics [10], excellent high-temperature strength [11,12], good
thermal stability [13] and, in general, good oxidation [8] and corrosion resistance [14,15]. These
properties suggest great potential in a wide variety of applications. Thus, HEAs have received
significant attention in recent years. Up till now, more than 300 HEAs have been developed,
forming a new frontier of metallic materials. Most studies on HEAs are focused on the
relationships between phase, microstructure, and mechanical properties. Although less attention
was paid to the physical properties of HEAs, they are actually also quite encouraging. This paper
briefly reviews current understanding of the physical properties of HEAs, with emphasis on the
magnetic, electrical, and thermal properties

Examples of magnetic properties:


Electrical & Thermal Conductivity

Full paper tables,graphs and references at the link below :

Entropy | Free Full-Text | Physical Properties of High Entropy Alloys

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High Purity Cr sources for Superalloys

Energy for th Future:Phil.Trans.A-Vol. 365, N° 1853 / April 15, 2007, curtesy The Royal Soc. London

Engineered foams and porous materials: Phil Trans A. Vol 364, N° 1838 / 06 curtesy_The R Soc. Lond