Effect of Al-5Ti-B-RE Grain Refiner on the Microstructures and Properties of AlCuCoCrFeNi High Entropy Alloys

DOI

10.2991/amcce-15.2015.421How to use a DOI?

Keywords

High entropy alloys; Grain refinement; Microstructure; Compressive properties

Abstract

A series of AlCrFeCoNiCu High-entropy Alloys added Al-5Ti-B-RE grain refiner were prepared by vacuum arc furnace. The microstructures of the series of as-cast AlCrFeCoNiCu alloys are typical dendrites and are constituted by two kinds of solid solution ( phase and phase). phase is body-centered cubic (bcc) structure composed of Al, Cr, Co, Fe, Ni and a few Cu, and phase is face-centered cubic (fcc) which enriches Cu. With the increase of Al-5Ti-B-RE, the region of phase becomes larger. When the content of Al-5Ti-B-RE is 0.4%(wt), the volume ratio values of phase increases, moreover, phase and phase evenly distribute, and either the compressive strength (2.28GPa) or the compressive ratio (20.95%) is maximized. Fan pattern appears in the fracture morphologies of these alloys, and it is cleavage fracture. These alloys belong to brittle materials.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Anmin Li
AU  - Qifeng Zheng
AU  - Ruohuai Chen
AU  - Long Meng
AU  - Ding Ma
AU  - Yuwei Huang
PY  - 2015/04
DA  - 2015/04
TI  - Effect of Al-5Ti-B-RE Grain Refiner on the Microstructures and Properties of AlCuCoCrFeNi High Entropy Alloys
BT  - Proceedings of the 2015 International Conference on Automation, Mechanical Control and Computational Engineering
PB  - Atlantis Press
SP  - 857
EP  - 861
SN  - 1951-6851
UR  - https://doi.org/10.2991/amcce-15.2015.421
DO  - 10.2991/amcce-15.2015.421
ID  - Li2015/04
ER  -