Abstract




 
   

IJE TRANSACTIONS B: Applications Vol. 19, No. 1 (December 2006) 45-51   

downloaded Downloaded: 86   viewed Viewed: 1520

  TRIBOLOGICAL BEHAVIOR OF REINFORCED AND UNREINFORCED HIGH CHROMIUM CAST IRON
 
M. R. Rahimipour

Department of Ceramics, Materials and Energy Research Center
Tehran, Iran, m-rahimi@merc.ac.ir

 
( Received: October 27, 2004 – Accepted in Revised Form: November 02, 2006 )
 
 

Abstract    In this paper, the metal matrix composites containing 22 wt % Cr, 2.5 wt % C and 2 to 16 volume percent TiC were processed by solidifying Fe-Cr-Ti-C in which precipitation of titaniumcarbide and chromium carbide occurred. The microstructure and abrasion resistance of in-situ synthesized composites were compared with the unreinforced high chromium white cast iron (HCWCI) containing 22 w. t. % Cr and 2.5 w. t. % C. SEM, OM as well as abrasion machine test methods which were used for microstructure and wear evaluation of the matrix and reinforcement. As a result, an increase in Ti content, increased the hard TiC volume percent besides the coarse(Fe,Cr)7C3 in the ferrous matrix. The increase of the TiC content led to an increase in wear resistance,without any considerable increase in macro hardness.

 

Keywords    High Chromium White Cast Iron (HCWCI), Composite, Abrasion Resistance, Titanium Carbide

 

References   

1. Fuerstenau, D. W. and Abouzeid, A., "The energy efficiency of ball milling in comminution", International Journal of Mineral Processing, Vol. 67, (November 2002), 161-185.

2. Lolson, D. and Cross, C. E., “Friction and wear in mining and mineral industries”, ASM Hand Book, Third Printing, Vol. 18, (1998), 364-128.

3. Rahimipour, M. R. and Rajabi, A., “Influence of Ti content on matrix microstructure and wear behavior of in Situ Fe/TiC composites”, International Journal of Engineering Science, Vol. 14, No. 2, (Spring 2003), 109-119.

4. Kattamis, T. Z. and Suganuma, T., “Solidification processing and tribological behavior of particulate TiC–ferrous matrix composites”, Materials Science and Enginereeng A, 128, (1990), 241-252.

5. Arjomand, S., “Investigation of Ferro – TiC Composites as grinding ball”, MSc thesis, Materials and Energy Research Center, Karaj, Iran, (August, 2003).

6. Asensio, J., Pero-Sanz and Verdeja, J. A., "Microstructure selection criteria for cast irons with more than 10 wt% chromium for wear applications", Materials Characterization, Vol. 49, (September 2002), 83-93.

7. Prasad, A. K. and Modi, O. P., “Correlating microstructural features and mechanical properties with abrasion resistance of a high strength low alloy steel”, Wear, (January 2003), 120-128.

8. Pagounis, E. and Lindroos, V. K., “Processing and properties of particulate reinforced steel matrix composites”, Materials Science and Engineering A, Volume 246, (15 May 1998), 221-234.

9. Wood , J. V., Dinsdale, K. and Davies, P., “Production and properties of steel – TiC composites for wear applications”, Materials Science and Technology, Vol. 11, (1995), 1315-1320.






International Journal of Engineering
E-mail: office@ije.ir
Web Site: http://www.ije.ir