Science of Sintering 2020 Volume 52, Issue 4, Pages: 445-456
https://doi.org/10.2298/SOS2004445K
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The effect of aging processes on tribo-metallurgy properties of al based ternary alloys product by P/M technique
Kaplan Yavuz (Pamukkale University Faculty of Technology, Department of Mechanical and Manufacturing Engineering, Turkey, Denizli), ykaplan@pau.edu.tr
Aksöz Sinan (Pamukkale University Faculty of Technology, Department of Metallurgy and Materials Engineering, Turkey, Denizli)
Ada Hakan (Kastamonu University Faculty of Engineering and Architecture, Department of Mechanical Engineering, Turkey, Kastamonu)
İnce Emre (Kastamonu University Institute of Science and Technology, Turkey, Kastamonu)
Özsoy Serkan (Kastamonu University Institute of Science and Technology, Turkey, Kastamonu)
In this study, Al matrix composites consisting of different amounts of Zn,
Cu, and Mg were produced using the powder metallurgy technique. In the
alloying, powders were ball milled for 120 min via mechanical alloying.
After alloying process, the powders were pressed at 800 MPa at room
temperature. Sintering (2 h at 600°C in argon atmosphere), solution
treatment (2 h at 480°C), and aging processes (3, 6, 9, and 12 h,
respectively, at 120°C) were applied to the samples. The hardness and
tribo-metallurgy properties of the products were investigated. After
sintering, the hardness values of the three alloys were close to each other;
however, the solution treatment after sintering caused the hardness values
to increase significantly. It was determined that the Al-2Zn-5Cu-4Mg alloy
had the highest hardness increase with the 6-h aging heat treatment. The
wear resistance of the materials in all the compositions had increased. The
highest wear resistance and lowest friction coefficient were obtained for
the Al-2Zn-5Cu-4Mg alloy with the 6-h aging heat treatment.
Keywords: Wear, Ternary Alloys, Tribology, Aging, Sintering