Processing of a new high entropy alloy: AlCrFeMoNiTi
Journal article, 2018

This work, a new composition of high-entropy alloys (HEAs) was designed. The composition was carefully tailored with the aim to obtain a solid solution with a BCC crystalline structure to be an alternative binder in cermets. Thus, the composition of the HEA has been designed taking into account various criteria which has fulfilled a metallic binder of a Ti(C,N) cermet:(1) high hardness and oxidation resistance and (2) good wetting behaviour with Ti(C,N) particles because the processing of cermets is by LPS. The design of the alloy has been performed using theoretical calculations of physicochemical properties of the elements involved and the calculation of phase diagram by Thermocalc. The designed alloy has been processed by casting and powder metallurgy (PM) to study the influence of the processing route on the phases formed and on the resulting properties. The powders were produced by gas atomisation and then consolidated by hot pressing. Special theme block on high entropy alloys, guest edited by Paula Alvaredo Olmos, Universidad Carlos III de Madrid, Spain, and Sheng Guo, Chalmers University, Gothenburg, Sweden.

hot pressing

hardness

compositional design

gas atomisation

cermet

High entropy alloys

Author

E. Prieto

Universidad Carlos III de Madrid

Raquel De Oro Calderon

Vienna University of Technology

Thomas Konegger

Vienna University of Technology

Elena Gordo

Universidad Carlos III de Madrid

Christian Gierl-Mayer

Vienna University of Technology

Saad Ahmed Sheikh

Chalmers, Industrial and Materials Science, Materials and manufacture

Sheng Guo

Chalmers, Industrial and Materials Science, Materials and manufacture

Herbert Danninger

Vienna University of Technology

S. Milenkovic

IMDEA Materials Institute

P. Alvaredo

Universidad Carlos III de Madrid

Powder Metallurgy

0032-5899 (ISSN)

Vol. 61 3 258-265

Subject Categories

Manufacturing, Surface and Joining Technology

Other Materials Engineering

Metallurgy and Metallic Materials

DOI

10.1080/00325899.2018.1457862

More information

Latest update

1/28/2019