Investigación sobre el comportamiento al desgaste de los compuestos Alumix321/SiC envejecidos y fabricados por prensado en caliente

Hülya Durmuş; Canser Gül; Nilay Çömez; Melis Yurddaşkal

doi:10.3989/revmetalm.148

Authors

Hülya Durmuş Manisa Celal Bayar University, Engineering Faculty, Department of Metallurgical and Materials Engineering https://orcid.org/0000-0002-7270-562X
Canser Gül Manisa Celal Bayar University, Engineering Faculty, Department of Metallurgical and Materials Engineering https://orcid.org/0000-0002-1339-936X
Nilay Çömez Manisa Celal Bayar University, Engineering Faculty, Department of Metallurgical and Materials Engineering https://orcid.org/0000-0002-6432-6582
Melis Yurddaşkal Manisa Celal Bayar University, Department of Mechanical Engineering https://orcid.org/0000-0002-8774-3848

DOI:

https://doi.org/10.3989/revmetalm.148

Keywords:

Aging, Alumix321, 6061 Al alloy, Composite, SiC, Wear

Abstract

Aerospace or automobile industries need materials that have a combination of several features such as lightness, high strength, corrosion and wear resistance. With ceramic particulates reinforcement, the properties of aluminum alloys can be greatly improved. The aim of this study is to investigate the effect of precipitation age hardening and the mass percentage of SiC particles on hardness and wear resistance of the 6061 aluminum matrix composites produced by hot pressing. Composites were solution treated at 530 °C for 1.5 h and then artificially aged at 160 °C for 18 h. The ball-on-disc wear test was carried out under 2N load using an alumina ball as the counterpart. The density of the composites was calculated according to Archimedes principle. Porosity tended to increase with increasing SiC reinforcement. Hardness and wear resistance of composites were improved by SiC particles and aging. Maximum hardness and minimum wear loss was obtained heat treated sample that contains 20 wt.% SiC reinforcement.

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