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The effects of a reciprocating extrusion process on the friction and wear behaviors of AA 6061/SiC composites

Published online by Cambridge University Press:  28 January 2016

Veysel Erturun  and
Mehmet Baki Karamış
Veysel Erturun*
Affiliation:
Erciyes University, Faculty of Aeronautics and Astronautics/Airframes and Powerplants, 38039 Kayseri, Turkey
Mehmet Baki Karamış
Affiliation:
Erciyes University, Department of Mechanical Engineering, 38039 Kayseri, Turkey
*
a) Address all correspondence to this author. e-mail: [email protected]
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Abstract

The friction and wear behaviors of reciprocatingly extruded AA 6061–SiC composites form the focal point of this study. To find the optimum way for refining the grains of the matrix, reciprocating extrusion (RE), as a deformation processes, is conducted and found to be feasible. Accordingly, RE has been applied on SiC particles reinforced AA 6061 matrix composite. Using the RE passes as a base, wear behaviors of the composites have been investigated at ambient temperature under dry and lubricated forms. Optical microscopy, transmission electron microscopy and scanning electron microscopy techniques were used to reveal the effect of the RE passes on the microstructure of the materials. As a result, it is found that there is a clear relationship between the weight loss, wear resistance and hardness of the samples. As the load and the number of passes increase, the weight loss in the samples increases. The worn surfaces of the reinforced composites have commonly adhesive and abrasive type of wear.

Keywords

wear testmetal-matrix compositesextrusionfriction and wear
Type
Articles
Information
Journal of Materials Research , Volume 31 , Issue 3 , 15 February 2016 , pp. 388 - 395
Copyright
Copyright © Materials Research Society 2016 

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Footnotes

Contributing Editor: Jürgen Eckert

References

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