effect of gr contents on wear properties of al2024/mgo/al2o3/gr hybrid composites

effect of gr contents on wear properties of al2024/mgo/al2o3/gr hybrid composites

;Ovalı İsmail;Esen Cemal;Albayrak Sevda;Karakoç Halil
acta botânica brasílica 2018 Vol. 167 pp. 02010-
128
smail2018mateceffect

Abstract

In the present study, hybrid metal matrix composites, Al2024/10Al2O3, Al2024/10Al2O3/3MgO, Al2024/10Al2O3/6MgO, Al2024/10Al2O3/3MgO/1.5 Gr, Al2024/10Al2O3/3MgO/3Gr, and reinforcement samples (AA 2024) produced with powder metallurgy process. AA 2024 and reinforcement powders were determined mixture rations and separately mixed during 30 minutes in a three-dimensional Turbula mixer. The mixed compositions were pressed at 300 MPa and sintered at 550°C during 1 h. After that, three materials were extruded at the same temperature. Experimental results show that hybrid metal matrix composites (HMMCs) a better wear resistance than the reinforcement samples because of higher hardness. Gr behave as a lubricant during wear process. The wear resistance of HMMCs can be optimized with controlling of the reinforcement content and type.

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201489
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10.1051/matecconf/201816702010
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