Effect of Al and Cr additions on the mechanical and oxidation behavior of Refractory Medium-Entropy
Abstract
The project is an attempt to design and analyze new promising material solutions based on the high entropy approach with enhancedmec,hanical and environmental properties. To this aim the study will focus on refractory medium-entropy alloys (RMEAs) consideringelemen,ts of the IV, V and VI columns of the periodic table which exhibit complex solid solution microstructures and also interestingmechan,ical properties. Additions of Al and Cr will be also considered to form attractive protective oxide layer and then improveenvironmen,tal properties. The design strategy requires a multi-scale approach and a suitable combination of calculationsand experiments. Thus,, interesting compositions will be screened according to high-throughput calculations based on the Calphadapproach and then prepared,with conventional preparation techniques (induction, arc melting). Efforts will be made onthermomechanical processes to produce arc,hitectured microstructure i.e. partially recrystallized one to achieve thebest compromisebetween strength and ductility. The relati,onships between mechanical, environmental properties and the evolution of the microstructureswill also be considered in the proposal,.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 16, 2022
- Source ID
- N629092212030
Entities
People
- Loic Perriere
Organizations
- Office of Naval Research
- Paris 12 University
- United States Navy