Slurry erosive wear behavior of hot extruded Al6061-Si <inf>3</inf> N <inf>4</inf> composite

This source preferred by Zulfiqar Khan

Authors: Ramesh, C.S., Khan, S., Khan, Z. and Sridhar, K.S.

http://ampt2012.org/index.cfm

Start date: 23 September 2012

This data was imported from Scopus:

Authors: Ramesh, C.S., Khan, S., Zulfiqar, K. and Sridhar, K.S.

Journal: Materials Science Forum

Volume: 773-774

Pages: 454-460

ISBN: 9783037859216

ISSN: 0255-5476

DOI: 10.4028/www.scientific.net/MSF.773-774.454

Silicon nitride possess excellent hot hardness and wear resistance coupled with very good corrosion resistance. Hence, in recent years, silicon nitride has been a serious contender as a reinforcement to develop light weight metal matrix composites for several technological applications. Al6061 is most popular matrix alloy as it possess excellent formability and in particular the quality of extrudates of Al6061 is quite high and are the most preferred in space and naval applications especially for support structures and torpedoes blades respectively. Improved corrosion and slurry erosion resistance on use of silicon nitride in nickel and aluminum alloy matrices have been reported by several researchers. In the light of the above, this paper focuses on development of Al6061- 6wt% Si 3 N 4 by stir casting the most economical and popular route followed by hot extrusion. Hot extrusion was carried out using 200T hydraulic press at extrusion ratio of 1:10 at a temperature of 550°C. Slurry erosion tests were carried out using 3.5% NaCl solution containing silica sand particles of size 312 μm at different rotational speeds varying between 300 rpm and 1200 rpm. The sand concentration was varied from 10 g/l to 40 g/l. Under identical test conditions, hot extruded Al6061- 6wt% Si 3 N 4 composite do possess better slurry erosion resistance when compared with matrix alloy. The mechanism involved in the material removal process during slurry erosion process will also be discussed. © (2014) Trans Tech Publications, Switzerland.

This data was imported from Web of Science (Lite):

Authors: Ramesh, C.S., Khan, S., Khan, Z. and Sridhar, K.S.

Journal: ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES XV

Volume: 773-774

Pages: 454-+

ISSN: 0255-5476

DOI: 10.4028/www.scientific.net/MSF.773-774.454

The data on this page was last updated at 04:58 on May 27, 2019.