Dry sliding wear behavior of the reinforced by graphite particle and heat treated of recycled aluminum AA6061 based MMC fabricated by powder metallurgy method

• Main Authors: Mahdi, Ahmed Sahib, Mustapa, Mohd Sukri, Mohamad, Mahmod Abd Hakim, Tobi, Abdul L. M., Ab Kadir, Muhammad Irfan, Samsi, Mohd Arif
• Format: Article
• Language: English
• Published: Trans Tech Publications 2017
• Subjects: T Technology (General); TA401-492 Materials of engineering and construction. Mechanics of materials
• Online Access: http://eprints.uthm.edu.my/4804/1/AJ%202017%20%28650%29.pdf; http://eprints.uthm.edu.my/4804/; https://dx.doi.org/10.4028/www.scientific.net/KEM.740.9

The micro-hardness and compression strength of recycling aluminum alloy AA6061 were investigated as a function of the different microstructure and constituent powder metallurgy method. Five specimens with various fabrication parameters were selected to investigate the compression strength and microhardness. The first, as fabricated specimen (as compacted), the second was as heat treated by quenching and aging process. Three specimens were mixed with Graphite particles as a reinforcement material. Compression strength values were tested for the specimens as fabricated and heat treated which were 195 and 300 MPa, respectively. The improvement ratio was 52% for the specimen as heat treated. On the other hand, high wear resistance was given by the specimen as heat treated, whereas, the lower wear strength was at the specimen mixed with 4.5% Graphite. These results were attributed to that the wear resistance related to the microhardness value