Single step fabrication by spray forming of large volume Al-based composites reinforced with quasicrystals

Author(s)

Wolf, Witor ^[1] ; E Silva, Luiz Paulo M. ^[2] ; Zepon, Guilherme ^[3] ; Kiminami, Claudio S. ^[3] ; Bolfarini, Claudemiro ^[3] ; Botta, Walter J. ^[3]

Affiliation

^[1] Univ Fed Minas Gerais, Dept Engn Met & Mat, Av Antonio Carlos 6627, BR-31270901 Belo Horizonte, MG - Brazil

^[2] Univ Fed Minas Gerais, Programa Posgrad Engn Met Mat & Minas, Av Antonio Carlos 6627, BR-31270901 Belo Horizonte, MG - Brazil

^[3] Univ Fed Sao Carlos, Dept Engn Mat, Rod Washington Luiz, Km 235, BR-13565905 Sao Carlos, SP - Brazil

• Document type: Journal article
• Source: SCRIPTA MATERIALIA; v. 181, p. 86-91, MAY 2020.
• Web of Science Citations: 0

Abstract

Recently it was shown that the Al-Cu-Fe-Cr system can form a microstructure consisting mainly of quasicrystalline and alpha-Al phases by arc-melting and subsequent annealing of an appropriate composition. In the present work we demonstrate that it is possible to fabricate a large volume of this composite directly from the liquid phase by spray forming an Al85Cu6Fe3Cr6 (%at) alloy. The overspray powder and an arc-melted sample were also analyzed. Tribological properties of the Al-based composite reinforced with quasicrystals was evaluated by pin-on-disk tests, which demonstrated to be superior than an Al-Si alloy, A380, used in this work as a comparison material. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 13/05987-8 - Processing and characterization of amorphous, metastable and nano-structured metallic alloys
• Grantee: Claudio Shyinti Kiminami
• Support Opportunities: Research Projects - Thematic Grants