Copper addition in multicomponent principal complex alloy MoNbTiW

• Grant number: 19/05836-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: August 01, 2019
• End date: January 31, 2020
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
• Principal Investigator: Ausdinir Danilo Bortolozo
• Grantee: George André Nogueira Jacob
• Host Institution: Faculdade de Ciências Aplicadas (FCA). Universidade Estadual de Campinas (UNICAMP). Limeira , SP, Brazil

Abstract

High-entropy alloys (HEA) have attracted enormous attention at many fields. These alloys are compounded by multiple principal elements. Unique microstructures and many impressive properties are discovered, such as, high strength and hardness, excellent corrosion resistance, thermal stability, fatigue, fracture and irradiance resistance. All of these properties have provided many promising potential applications for HEA.Based on this context, this project aims to explore the effect of the addition of Cu on the mechanical properties with the main multicomponent alloys MoNbTiW. Powder metallurgy route will be used. The alloys will be characterized by X-ray diffraction, densification, optical and scanning microscopy, microhardness, compression tests. Preliminary results suggest that for thermal treatment temperatures of 1300 oC for 24 h there is a single phase formation. For the mechanical properties a hardness of 580 ± 46 HV and a limit of compressive strength of approximately 602 ± 24 MPa were reached.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

QUEIROZ RODRIGUES, JOAO FELIPE; COLUCI, VITOR RAFAEL; DEL GROSSO, MARIELA F.; PADILHA, GIOVANA DA SILVA; RIUPER OSORIO, WISLEI; DANILO BORTOLOZO, AUSDINIR. Modeling and characterization of MoNbTiW refractory multi-principal element alloy. Journal of Alloys and Compounds, v. 928, p. 9-pg., 2022-12-20. (16/13352-0, 13/12729-5, 19/05836-6)