Development of a novel high entropy alloy by mechanical alloying

• Grant number: 23/15812-2
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: April 01, 2024
• End date: June 30, 2024
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
• Principal Investigator: Diego Rafael Nespeque Correa
• Grantee: Jhuliene Elen Muro Torrento
• Supervisor: Sophia Alexandra Tsipas
• Host Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil
• Institution abroad: Universidad Carlos Iii De Madrid, Campus De Leganés, Spain
• Associated to the scholarship: 21/13921-3 - Development of a low cost high entropy alloy for potential use as bone fixation devices, BP.DR

Abstract

Recently, high entropy alloys (HEAs) composed of five or more elements in a proportion close to equimolar have been developed. These materials have been recognized for their high mechanical strength, elasticity, and corrosion resistance, which have attracted attention in the biomedical field. However, the currently developed high entropy alloys need adjusted mechanical, electrochemical, and biological properties for use as biomaterials. This makes the development of new HEA alloys for use specifically as biomaterials a promising field. In addition, mechanical alloying is one of the most efficient and sustainable methods to prepare HEAs because it can enhance solid solubility and produce homogeneous microstructures from powder particles. In this scenery, this project aims to develop the recently developed high entropy alloy Ti-30Zr-28Nb-5Mn-1.5Al-5Fe (wt.%) through mechanical alloying of raw metallic powders and compare to the sample produced by argon arc-melting in terms of density, phase composition, microstructure, and selected mechanical properties. Then, the potential biomedical application of the mechanically alloyed sample in contrast to the cast one will be evaluated.