Study the Effect of Rotational Speed and Pouring Temperature on the Wear Resistance and Hardness of Alloy (A380) Reinforced with Different Volume Fraction of Alumina Particles-Reference-Cited by-同舟云学术

Study the Effect of Rotational Speed and Pouring Temperature on the Wear Resistance and Hardness of Alloy (A380) Reinforced with Different Volume Fraction of Alumina Particles

Published:2016-12-31 Issue:4 Volume:23 Page:1-10
ISSN:2312-7589
Container-title:Tikrit Journal of Engineering Sciences
language:
Short-container-title:Tikrit j. eng. sci.

Author:

Mahdi Farouk M.,Salman Najeeb A.,Hameed Mohannad A.

Abstract

In this study a cylindrical liner was produced by horizontal centrifugal casting process. The liner was composed from aluminum alloy (A380) matrix reinforced with alumina particles (Al2O3) with grain size of (63−125)μ and volume percent of 10,15 and 20%. The die was rotated at different speeds and its temperature was remained constant at (350)ºC.In this present study it was concluded that any increase in temperature difference between pouring and die temperature will reduce the surface defects. This study reveals that increasing the rotational speed refines the grain size but cause the alumina particles to be concentrated at the outer surface. Finally it was found that the addition of alumina particles increases both hardness and wear resistance of the alloy.

Publisher

Tikrit University

Reference15 articles.

1. - Chirita, G., Stefanescu, I., Soares, D., Silva, F.S., "Centrifugal Versus Gravity Casting Techniques Over Mechanical Properties", 2006.

2. - Xuedong Lin, Changming Liu, Yanbo Zhai, Kai Wang, " Influences of Si and Mg Contents on Microstructures of Al–xSi–yMg Functionally Gradient Composites Reinforced with in Situ Primary Si and Mg2Si Particles by Centrifugal Casting", J Mater Sci., 26 August 2010.

3. - Yarandi, F. M., Rohatgi, P. K. and Ray, S., "Fluidity and Microstructure Formation During Flow of Al- SiC Particle

4. Composites", Journal of Materials Engineering and Performance, Volume 2, Number 3, Pages 359-364, 1993.

5. - Zhu, J.H., Liaw, P.K., Corum, J.M., Hansen, J.G.R., and Cornie, J.A., "Damage Mechanisms in a Cast Ductile Iron and a Al2O3p/Al Composite", Metallurgical and Materials Transactions a Volume 29A, November 1998.