Characterization of Co-Cr-Mo (F-75) Alloy Produced by Solid State Sintering


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This research was carried out to fabricate and characterize Co-Cr-Mo (F-75) alloy. The samples have been prepared via solid state sintering. The lab work comprises the mixing of F-75 alloy powder with 2 wt. % of binder. The mixture was cold compacted using uniaxially press at 500 MPa. The samples were sintered at three different temperatures (1250 °C, 1300 °C and 1350 °C) in inert environment for 90 minutes of sintering time. The sintered samples were characterized by using Scanning Electron Microscope (SEM), Energy Dispersive X-ray Spectroscopy (EDS) and optical microscope (OM) Olympus BX41M. Bulk density, apparent porosity, percentage of linear shrinkage, and microhardness of the samples were also characterized. The average of the grain sizes were measured by line intercepts method. The optical micrographs showed the difference grain size in all sintered samples after etching with Marble reagent. The result shows the percentage of linear shrinkage, bulk density value and porosity increase with increasing the sintering temperature. Beside that, higher sintering temperature yields coarser grain structure.



Edited by:

Zainal Arifin Ahmad, Muhd Ambar Yarmo, Fauziah Haji Abdul Aziz, Dr. Meor Yusoff Meor Sulaiman, Badrol Ahmad, Khairul Nizar Ismail, Nik Akmar Rejab




C. D. Zuraidawani et al., "Characterization of Co-Cr-Mo (F-75) Alloy Produced by Solid State Sintering", Advanced Materials Research, Vol. 173, pp. 106-110, 2011

Online since:

December 2010




[1] T. Matković, P. Matković and J. Malina, Journal of Alloys and Compounds 366 (2004) 293.

[2] D. H. Kohn, Current Opinion in Solid State and Materials Science 3 (1998) 309.

[3] A. Marti, Injury 31 (2000) D18.

[4] M. Niinomi, Metallurgical and Materials Transactions A 33 (2002) 477.

[5] D. Sheeja, B. K. Tay, S. P. Lau and L. N. Nung, Surface and Coatings Technology 146-147 (2001) 410.

[6] S. Spriano, E. Vernè, M. G. Faga, S. Bugliosi and G. Maina, Wear 259 (2005) 919.

[7] M. J. Walter, Benefits of P/M Processed Cobalt-Based Alloy for Orthopaedic Medical Implants (Carpenter Technology Corp., Wyomissing, USA 2006).

[8] R. M. Pilliar, International Journal of Powder Metallurgy (Princeton, New Jersey) 40 (2004) 19.

[9] A. K. Eksi and A. H. Yuzbasioglu, Materials and Design 28 (2007) 1364.

[10] R. M. German, Sintering Theory and Practice (John Wiley & Sons, INC., New York, NY, 1996).

[11] M. Dourandish, D. Godlinski, A. Simchi and V. Firouzdor, Materials Science and Engineering: A 472 (2008) 338.

[12] .

[12] Z. Oksiuta, J. R. Dabrowski and A. Olszyna, Journal of Materials Processing Technology 209 (2009) 978. B311-93, in Annual book of ASTM standard, (USA, 1999).

[13] E. Salahinejad, R. Amini, M. Marasi and M. J. Hadianfard, Materials & Design In Press, Corrected Proof (2010).

[14] R. M. German, Powder Metallurgy Science (Metal Powder Industries Federation, Princeton, New Jersey, 1997).

[15] X. Xu, P. Lu and R. M. German, Journal of Materials Science 37 (2002b) 117.