Transition from High-Entropy to Conventional Alloys: Which Are Better?

Materials

Amra Salčinović Fetić¹  Krešo Zadro²  Damir Pajić²  Emil Babić²  Mathilde Laurent-Brocq³  Loїc Perrière³  Gyorgy Remenyi⁴  Ignacio Alejandro Figueroa⁵  Željko Marohnić⁶  Damir Starešinić⁶  Đuro Drobac⁶  Petar Pervan⁶  Vesna Mikšić Trontl⁶  Ramir Ristić⁷ 

[1] Department of Physics, Faculty of Science, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina;Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia;ICMPE, Universite Paris Est, 94320 Thiais, France;Institut Neel—CNRS, 38042 Grenoble, France;Institute for Materials Research—UNAM, Mexico City 04510, Mexico;Institute of Physics, 10000 Zagreb, Croatia;Physics Department, Josip Juraj Strossmayer University, 31000 Osijek, Croatia;

关键词: compositional complex alloys;    high-entropy alloys;    amorphous alloys;    electronic structure;    atomic structure;    thermal properties;   

DOI  :  10.3390/ma14195824

来源: DOAJ

【 摘 要 】

The study of the transition from high-entropy alloys (HEAs) to conventional alloys (CAs) composed of the same alloying components is apparently important, both for understanding the formation of HEAs and for proper evaluation of their potential with respect to that of the corresponding CAs. However, this transition has thus far been studied in only two types of alloy systems: crystalline alloys of iron group metals (such as the Cantor alloy and its derivatives) and both amorphous (a-) and crystalline alloys, TE-TL, of early (TE = Ti, Zr, Nb, Hf) and late (TL = Co, Ni, Cu) transition metals. Here, we briefly overview the main results for the transition from HEAs to CAs in these alloy systems and then present new results for the electronic structure (ES), studied with photoemission spectroscopy and specific heat, atomic structure, thermal, magnetic and mechanical properties of a-TE-TL and Cantor-type alloys. A change in the properties of the alloys studied on crossing from the HEA to the CA concentration range mirrors that in the ES. The compositions of the alloys having the best properties depend on the alloy system and the property selected. This emphasizes the importance of knowing the ES for the design of new compositional complex alloys with the desired properties.

【 授权许可】

Unknown