Exploratory study on Carburisation of Mild Steel using Selected Agroforestry Wastes

  • M.O.H. Amuda Department of Metallurgical and Materials Engineering, University of Lagos, Akoka, Lagos. Nigeria.
  • F.T. Lawal Materials Development and Processing Research Group, Department of Metallurgical and Materials Engineering, University of Lagos
  • A.S. Adeoye Materials Development and Processing Research Group, Department of Metallurgical and Materials Engineering, University of Lagos
Keywords: Carbonised-agroforestry-wastes, carbon potential, charcoal, martensite morphology, wear characteristics

Abstract

t
In the present work, exploratory study was conducted on selected agroforestry wastes as carbonaceous source for
carburisation of mild steel in relation to conventional charcoal. Pulverised and carbonised coconut shell (CS), coconut
bunch fruit (CBF), palm kernel shell (PKS) and palm kernel bunch fruit (PKBF) and their blends were combined in various
proportions with CaCO3 for pack carburisation of mild steel. Carburisation was accomplished by heating the samples to
950 oC for 8 hours followed by oil quenching and subsequent tempering at 450 oC and 550 oC, respectively. Microstructures
in the agroforestry waste-carburised samples were similar to those obtained in charcoal carburised mild steel but with
differential martensitic morphology and distribution. The hardness profile in the carburised samples correlated to the
carbon potential of the carburising source in the trend PKS: 217.24Hv; CS: 203.32Hv; PKBF: 196.23Hv and CBF: 190.4Hv.
Similar trend was obtained in the wear behaviour of the carburised samples. The impact strength of the selected
agroforestry wastes compared favourably with the conventional charcoal and showed no correlation to the carbon
potential. Whilst this study suggests that the selected agroforestry wastes are promising as carburising agents, a further
investigation is imperative to determine the optimised carburising conditions as well as the technological framework for
carbonisation of the wastes.

References

Agele, S., Ojeniyi, S. and Ogundare, K. (2015). The fluxes of organic C and N, and microbial biomass and maize yield in an
organically manured ultisol of the Guinea Savanna agroecological zone of Nigeria. Journal of Agricultural
Chemistry and Environment. 4 (4): 83-95.
Akinluwade, K. J., Adetunji, A. R., Adeoye, M. O., Umoru, L. E., Kalu, P. N., Taiwo, A. T., and Adewoye O. O. (2012).
Development of an environmentally friendly in-situ pack-cyaniding technique. Journal of Minerals and Materials
Characterization and Engineering. 11 (1): 21-30.
Amulya, K., Dahiya, S. and Mohan, S., V. (2016). Building a bio-based economy through waste remediation - Innovation
towards sustainable future. In: Bioremediation and Bioeconomy. Elsevier,USA. 497-521.
Aramide, F. O., Ibitoye, S. A., Oladele, I. O., and Borode, J. O. (2010). Pack carburisation of mild steel, using pulverized
bone as carburiser- Optimizing Process Parameters. Leonardo Electronic Journal of Practices and Technologies.
16: 1-12.
Arthur, E.K., Ampaw, E., Akinluwade, K.J., Adetunji, A.R., Adewoye, O.O. and Soboyejo, W.O. (2016). Carbon and nitrogen
concentration profiles of cassava-pack carbonitrided steel: model and experiment. Advanced Materials
Research. 1132: 313-329.
Aslam, 1. H. M. (2016). Case hardening of mild steel gear rod. International Journal of Advanced Science and Engineering
Research. 4: 1-6.
Barsom, J.M. and Rolfe, S.T. (1970). Correlations between KIC and Charpy V-notch test results in the transitiontemperature range. In: Impact Testing of Metals. ASTM International. 281-302.
Ihom, A. P. (2013). Case hardening of mild steel using cowbone as energiser. African Journal of Engineering Research. 1
(4): 97 - 101.
Ihom, A. P., Nyior, G. B., Nor, I. J. and Ogbodo, N. J. (2013). Investigation of egg shell waste as an enhancer in the
carburisation of mild steel. American Journal of Materials Science and Engineering. 1(2): 29 - 33.
Jaszczak, E., Polkowska,Ż., Narkowicz,S. and Namieśnik,J. (2017). Cyanides in the environment- analysis, problems and
challenges. Environmental Science and Pollution Research International. 24 (19): 15929–15948.
Klenam, D.E.P., Polese, C., Chown, L.H., Kwofie, S. and Cornish, L.A. (2015). Mechanical behaviour of pack carburized AISI
316L austenitic stainless steel. Journal of the Southern African Institute of Mining and Metallurgy, 115(12):1183-
1191.
London, L., Joshi, T.K., Cairncross, E. and Claudio, L. (2011). Environmental justice: An international perspective. In:
Encyclopedia of Environmental Health. Elsevier, USA. 441-448.
Mittemeijer, E.J. and Somers, M.A.J. (2015). Kinetics of thermochemical surface treatments. In: Thermochemical surface
engineering of steels-improving materials performance. Woodhead Publishing, Elsevier, U.K. 113-140.
Nagendran, R. (2011). Agricultural waste and pollution. In: Waste-A Handbook for Management. Academic Press, Elsevier,
USA. 341-355.
Nair, P.K.R., Nair, V.D., Kumar, B.M. and Showalter, J.M. (2010). Carbon sequestration in agroforestry systems. In:
Advances in Agronomy. Elsevier, USA.108:237-307.
Ntuli, V. and Hapazari, I. (2013). Sustainable waste management by production of activated carbon from agroforestry
residues. South African Journal of Science, 109 (1-2): 1-6.
Ohize, E.J. (2009). Effects of local carbonaceous materials on the mechanical properties of mild steel. Assumption
University Journal of Technology, 13(2):107-113.
Oyetunji, A., and Adeosun, S. O. (2012). Effects of carburizing process variables on mechanical and chemical properties
of carburised mild steel. Journal of Basic and Applied Sciences, 8 (2): 319 - 324.
Pavlina, E.J. and Van Tyne, C.J. (2008). Correlation of yield strength and tensile strength with hardness for steels. Journal
of Materials Engineering and Performance, 17(6): 888-893.
Rajput,P., Sarin, M., Sharma,D. and Singh, D. (2014). Characteristics and emission budget of carbonaceous species from
post-harvest agricultural-waste burning in source region of the Indo-Gangetic Plain. Tellus B: Chemical and
Physical Meteorology. 66 (1), 21026.
Ramírez-García, R., Gohil, N. and Singh, V. (2019) Recent advances, challenges, and opportunities in bioremediation of
hazardous materials. In: Phytomanagement of Polluted Sites- Market Opportunities in Sustainable
Phytoremediation. Elsevier, USA. 517-568.
Wiratmoko, A. and Halloran, J.W. (2009). Fabricated carbon from minimally processed coke and coal tar pitch as a carbonsequestering construction material. Journal of Materials Science, 44(8): 2097-2100.
Published
2020-07-27
How to Cite
Amuda, M., Lawal, F., & Adeoye, A. (2020). Exploratory study on Carburisation of Mild Steel using Selected Agroforestry Wastes. Journal of Engineering Research, 25(2), 122-137. Retrieved from http://jmtcs.unilag.edu.ng/index.php/jer/article/view/993