TY - JOUR
T1 - Tribological characteristics of A356 Al alloy-SiCP composite discs
AU - Shivamurthy, R. C.
AU - Surappa, M. K.
N1 - Funding Information:
The authors wish to thank Department of Science and Technology (DST), Government of India, New Delhi , for financial support. The author Mr. R.C. Shivamurthy would also like to thank Mr. Gurulinga, Senior Technical Assistant, Department of Materials Engineering, Indian Institute of Science, Bangalore, India, for his constant support in carrying out SEM analysis of worn surfaces.
PY - 2011/7/29
Y1 - 2011/7/29
N2 - The dry sliding wear and friction behaviour of A356 Al alloy and its composites containing 10 and 20vol.% SiCP have been studied using pin-on-disc set up. In these tests, A356 Al alloy and its composites are used as disc whereas brake pad was used in the form of pins. Wear tests were carried out at a load of 192N and the sliding speed was varied from 1 to 5m/s. Tests were done for a sliding distance of 15km. The effects of sliding velocity on the wear rate, coefficient of friction and nature of tribolayers formed on discs have been studied. Wear rates of composites as calculated by weight loss method, found to be negative at sliding speed of more than 2m/s. Worn surfaces of pins and discs have been analyzed using scanning electron microscope. SEM and EDAX analysis of worn surfaces of composite discs showed formation of tribolayers, consisting of mixture of oxides of Al, Si, Cu, Ca, Ba, Mg, and Fe. In these layers, copper and barium content found to be increase with sliding speed in the case of composites.
AB - The dry sliding wear and friction behaviour of A356 Al alloy and its composites containing 10 and 20vol.% SiCP have been studied using pin-on-disc set up. In these tests, A356 Al alloy and its composites are used as disc whereas brake pad was used in the form of pins. Wear tests were carried out at a load of 192N and the sliding speed was varied from 1 to 5m/s. Tests were done for a sliding distance of 15km. The effects of sliding velocity on the wear rate, coefficient of friction and nature of tribolayers formed on discs have been studied. Wear rates of composites as calculated by weight loss method, found to be negative at sliding speed of more than 2m/s. Worn surfaces of pins and discs have been analyzed using scanning electron microscope. SEM and EDAX analysis of worn surfaces of composite discs showed formation of tribolayers, consisting of mixture of oxides of Al, Si, Cu, Ca, Ba, Mg, and Fe. In these layers, copper and barium content found to be increase with sliding speed in the case of composites.
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U2 - 10.1016/j.wear.2011.01.075
DO - 10.1016/j.wear.2011.01.075
M3 - Article
AN - SCOPUS:79960666283
SN - 0043-1648
VL - 271
SP - 1946
EP - 1950
JO - Wear
JF - Wear
IS - 9-10
ER -