Abstract
The effect of microstructural evolution on mechanical properties of unalloyed medium carbon (EN8) steel with emphasis on the effects of grain size within solid phase mixtures and the mechanical response of the material is investigated and reported. Specimens with a range of microstructures (grain size and phase) were prepared by heat treatment. The microstructures were carefully characterized using both optical electronic microscope (OEM) and scanning electron microscope (SEM) and the mechanical properties were studied using tensile and hardness tests. The results indicated that structural parameter that directly controls the yield strength, the ultimate tensile strength and elongation at failure have some influence (direct or indirect) on the stress flow and formability of the material.
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References
Morris Jr J (2001) The influence of grain size on the mechanical properties of steel. eScholarship Repository, University of Califonia, pp 1–8
Moleejane CM, Sanusi KO, Ayodele OL, Oliver GJ (2014) Microstructural features and Mechanical behaviour of Unalloyed Medium Carbon Steel (EN8 Steel) after subsequent heat treatment. In: Proceedings of the world congress on engineering and computer science 2014, WCECS 2014, San Francisco, pp 1034–1039, 22–24 Oct 2014
Hall E (1951) The deformation and ageing of mild steel: III discussion of results. In: Proceedings of the physical society of London, pp 747–753
Petch N (1953) The cleavage strength of Polycrystals. Journal of the Iron and Steel Institute, pp 25–28
Armstrong R (1970) The influence of polycrystal grain size on several mechanical properties of materials. Metall Mater Trans B 1(5):1169–1176
Agrawal B (1988) Introduction to engineering materials. Tata McGraw-Hill, New Delhi
Zhao M, Qiu T, Nagai K, Yang K (2006) Grain growth and Hall-Petch relation in dual-sized ferrite/cementite steel with nano-sized cementite particles in a heterogenous and dense distribution. Scr Mater 54:1193–1197
Ueji R, Tsuji N, Minamino Y, Koizumi Y (2002) Ultra grain refinement of plain low carbon steel by cold rolling and annealing of martensite. Acta Mater 50:4177–4189
Chen S, Gan D (1986) Effects of grain boundary carbides on the tensile and impact properties of type 316 stainless steel. Mater Sci Eng 84:65–76
Muszka K, Majta J, Bienias L (2006) Effects of grain refinement on mechanical properties of microalloyed steel. Metall Foundary Eng 32(2):87–97
Liu K, Shan Y, Yang Z, Liang J, Lu L, Yang K (2006) Effect of heat treatment on prior grain size and mechanical property of a maraging stainless steel. J Mater Sci Technol 22(6):769–774
Liu Y, Wanga P, Lia J, Lua C, Quekb K, Liuc G (2003) Parametric study of a sprorocket system during heat-treatment process. Finite Elem Anal Des 40:25–40
Sen I, Tamirisakandala S, Miracle B, Ramamurty U (2007) Microstructural effects on the mechanical behaviour of B-modified H-6Al-4V alloys. Acta Materialia 55:4983–4993
Rack H (1978) Age hardening-grain size relationships in 18Ni maraging steels. Mater Sci Eng 34:263–270
Tamehiro H, Nakasugi H (1985) Austenite grain size of Tltaniun-microalloyed, continuously cast steel slabs. T Iron Steel I Jpn 25(4):311–317
Brunig N (2003) An anisotropic ductile damage model based on irreversible thermodynamics. Int J Plast 19:1679–1713
Barlat F, Aretz H, Yoon J, Karabin ME, Brem J, Dick R (2005) Linear transformation-based anisotropic yield functions. Int J Plast 21:1009–1039
Bonora N (1997) A nonlinear CDM model for ductile failure. Eng Fract Mech 58(1/2):11–28
Lassance D, Scheyvaerts F, Pardoen T (2006) Growth and coalescence of penny-shaped voids in metallic alloys. Eng Fract Mech 73:1009–1034
Voyiadjis G, Abed F (2006) A coupled temperature and strain rate dependent yield function for dynamic deformations of bee metals. Int J Plast 22:1398–1431
Mediavijla J, Peerlings R, Geers M (2006) Prediction of phase transformation during laser surface hardening of AISI 4140 including the effects of inhomogeneous austenite formation. Mater Sci Eng A 435–436:547–555
Mahdi L, Zhang L (2000) A Numerical Algorithm for the full coupling of mechanical deformation and phase transformation in surface grinding. Comput Mech 26:148–156
Acknowledgements
The authors gratefully acknowledge the financial supports of Faculty of Engineering, Department of Mechanical Engineering, Cape Peninsula University of Technology, Cape Town and Faculty of Engineering and the Built Environment, Department of Chemical Engineering University of Johannesburg, South Africa.
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Sanusi, K.O., Moleejane, C.M., Ayodele, O.L., Oliver, G.J. (2015). The Effects of Microstructural Evolution and Mechanical Behaviour of Unalloyed Medium Carbon Steel (EN8 Steel) After Subsequent Heat Treatment. In: Kim, H., Amouzegar, M., Ao, Sl. (eds) Transactions on Engineering Technologies. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-7236-5_37
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DOI: https://doi.org/10.1007/978-94-017-7236-5_37
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