Enhanced wear resistance of a novel Al-based quasicrystalline phase-forming alloy obtained by laser powder bed fusion

Author(s)

Fernandes, Diogo de Campos ; de Araujo, Aylanna P. M. ; Ferreira, Tales ; Uhlenwinkel, Volker ; Gargarella, Piter

• Document type: Journal article
• Source: Materials Letters; v. 382, p. 5-pg., 2024-12-24.

Abstract

The wear resistance of a novel Al-based metastable quasicrystalline phase-forming alloy, fabricated via laser powder bed fusion (PBF-LB/M), was thoroughly investigated. Its ultrafine and quasicrystal-rich microstructure yielded a significantly lower specific wear rate and friction coefficient than other aluminum alloys. No notable differences in the coefficient of friction and specific wear rate were observed among samples produced in different orientations, with delamination identified as the predominant wear mechanism. These results highlight potential technological applications for this alloy in areas demanding complex geometries, lightweight characteristics, and enhanced wear resistance. (AU)

• FAPESP's process: 18/04209-5 - Correlation between microstructure and mechanical properties of a quasicrystalline phase former alloy obtained by selective laser melting
• Grantee: Aylanna Priscila Marques de Araújo
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 21/10440-4 - Wear behavior of Al-Fe-Cr-Ti alloy processed by additive manufacturing
• Grantee: Diogo de Campos Fernandes
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 19/03010-3 - Selective laser melting of quasicrystalline phase former al-based alloys
• Grantee: Aylanna Priscila Marques de Araújo
• Support Opportunities: Scholarships abroad - Research Internship - Master's degree
• FAPESP's process: 17/27031-4 - Effect of process parameters on the metallurgical characteristics of additive-manufactured alloys
• Grantee: Piter Gargarella
• Support Opportunities: Research Grants - Young Investigators Grants