Effects of MoS2 on tribological properties and mechanically mixed layer of Al matrix composites

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Important Dates

Conference:

Apr. 22-24, 2019

Full Paper Due: Mar. 18, 2019

Abstract Due: Mar. 18, 2019

Audience Registration Due:
Apr. 22, 2019

Presentations of The Spring World Congress on Engineering and Technology (SCET 2017)

● Effects of MoS2 on tribological properties and mechanically mixed layer of Al matrix composites
Author(s)
Chen Baiming
Affiliation(s)
Lanzhou Institute of Technology
KEYWORDS
MoS2, tribological properties, mechanically mixed layer, Al matrix composites
ABSTRACT
Al matrix composites containing MoS2 at weight fractions in the range of 0%, 3%, 10%, were fabricated by hot press method, respectively. The effect of MoS2 on tribological properties and mechanically mixed layer of Al matrix composites were investigated on a pin-on-disc tester at load of 20~50N and sliding speed of 0.23~0.69m/s. Worn surfaces and mechanically mixed layer of composites were characterized by scanning electron microscopy(SEM). Results indicate that the hardness and compression strength of composite with 3% content of MoS2 has a little higher than that of composite with 0% content of MoS2, but the hardness and compression strength of composite with 10% content of MoS2 were dropped sharply. With the increase of MoS2 content, the composite with 10%MoS2 has a low and stable coefficient at load of 30~50N. The wear rate of composite with 10%MoS2 at load of 50N and sliding speed of 0.69m/s has a sharp increase and there wasn’t mechanically mixed layer(MML) present; the composites at load of 30N and sliding speed of 0.69m/s have low and stable wear rates and there were MML present with wavy shape across entire wear track.