Effects of Local Cooling Media on the Mechanical Properties of Heat Treated Mild Steel
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This paper reports the effects of local cooling media (groundnut oil, palm oil, shea butter and air) on the mechanical properties of heat treated mild steel. Tensile test, hardness test and microstructural analysis were carried out on the heat treated and as-purchased specimens. The results show significant differences in the mechanical properties of the heat treated specimens. The hardness profile showed higher values for palm oil-cooled, shea butter-cooled, and the groundnut oil-cooled specimens in an increasing of order respectively when compared with as-purchased specimen with 194.9 VHN, while a decrease in hardness was recorded for the air-cooled specimen. Furthermore, the yield strength and ultimate tensile strength of the heat treated specimens obtained through the tensile test analysis showed an increase in yield strength for the groundnut oil-cooled (464.4 MPa) and the shea butter-cooled (412.9 MPa) specimens, and a decrease in yield strength for the air-cooled (358.3 MPa) and palm oil-cooled (307.7 MPa) specimens when compared with the as-purchased specimens (376.9 MPa). Also, the same trend was observed in the ultimate tensile strength (UTS) of the specimens. In contrast, the ductility improved in air-cooled specimen (40.28) while decreased in the specimen cooled in the media when compared with as-purchased specimens (34.22). Furthermore, microstructural analysis revealed that the groundnut oil-cooled specimens gave a microstructural quality than the other heat treated specimens.
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References
-
Smith, W.F. and J. Hashemi, Foundations of materials science and engineering. 2011: McGraw-Hill.
Google Scholar
1
-
John, V.B., Introduction to Engineering Materials. 2nd ed. 1980: Macmillan Publishing Company Ltd.
Google Scholar
2
-
Rajan, T., A. Sharma, and C. Sharma, Heat treatment: Principles and techniques. 2011: PHI Learning Pvt. Ltd.
Google Scholar
3
-
Fadare, D., T. Fadara, and O. Akanbi, Effect of heat treatment on mechanical properties and microstructure of NST 37-2 steel. Journal of Minerals and Materials Characterization and Engineering, 2011. 10(03): p. 299.
Google Scholar
4
-
Adebayo, A. and J. Stephen, Effects of Heat Treatment on the Mechanical Properties of Mild Steel. Journal of Applied Sciences, 2008. 3(3): p. 162-166.
Google Scholar
5
-
Hasan, M.F., Analysis of Mechanical Behavior and Microstructural Characteristics Change of ASTM A-36 Steel Applying Various Heat Treatment. Journal of Material Science & Engineering, 2016. 5(2): p. 1-6.
Google Scholar
6
-
Offor, P., C. Daniel-Mkpume, and D. Obikwelu, Effects of Various Quenching Media on the Mechanical Properties of Intercritically Annealed 0.15 wt% C–0.43 wt% Mn Steel. Nigerian Journal of Technology, 2010. 29(2): p. 76-81.
Google Scholar
7
-
Ahaneku, I., A. Kamal, and O. Ogunjirin, Effects of Heat Treatment on the Properties of Mild Steel Using Different Quenchants. Frontiers in Science, 2012. 2(6): p. 153-158.
Google Scholar
8
-
Grishin, S. and Y.N. Churyukin, Evaluation of the cooling capacity of quenching media based on water. Metal Science and Heat Treatment, 1986. 28(10): p. 744-745.
Google Scholar
9
-
Odusote, J.K., T.K. Ajiboye, and A.B. Rabiu, Evaluation of mechanical properties of medium carbon steel quenched in water and oil. AU Journal of Technology, 2012. 15(4).
Google Scholar
10
-
Tolstousov, A. and O. Bannykh, New quenching media based on water-soluble polymers. Metal Science and Heat Treatment, 1981. 23(2): p. 104-106.
Google Scholar
11
-
Jumare, A., S. Aku, F. Anafi, and R. Suleman, Assessment of mechanical properties of mild steel drawn using vegetable fatty-based oils as lubricants. Global Journal of Pure and Applied Sciences, 2011. 17(1): p. 99-107.
Google Scholar
12
-
Adeyemi, G., J.T. Stephen, and O.D. Akindele, Effects of Coolants on the Welding Zone of Mild Steel Rods In Corrosive Media. 2013.
Google Scholar
13
-
Adekunle, A., K. Adebiyi, and M. Durowoju, Impact of quench severity and hardness on aisi 4137 using eco-friendly quenchants as industrial heat treatment. Journal of Mechanical Engineering and Sciences, 2013. 4: p. 409-417.
Google Scholar
14
-
GÜndÜz, S. and A. Çapar, Influence of forging and cooling rate on microstructure and properties of medium carbon microalloy forging steel. Journal of Materials Science, 2006. 41(2): p. 561-564.
Google Scholar
15
-
Dempsey, J., Quenchants: air, brine, water, oil, synthetics and super quench, FQAs webboard on quenchants in internet resource for blacksmith. 2012.
Google Scholar
16
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