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has been cited by the following article:

• TITLE: Evaluation of Mechanical Properties of Medium Carbon Steel Quenched in Water and Oil

  AUTHORS: J. K. Odusote, T. K. Ajiboye, A. B. Rabiu

  KEYWORDS: Medium Carbon Steel; Muffle Furnace; Quenching Media; Tensile Strength; Hardness Value

  JOURNAL NAME: Journal of Minerals and Materials Characterization and Engineering, Vol.11 No.9, September 25, 2012

  ABSTRACT: Samples of medium carbon steel were examined after heating between 900℃ - 980℃ and soaked for 45 minutes in a muffle furnace before quenching in palm oil and water separately. The mechanical behavior of the samples was investigated using universal tensile testing machine for tensile test and Vickers pyramid method for hardness testing. The microstructure of the quenched samples was studied using optical microscope. The tensile strength and hardness values of the quenched samples were relatively higher than those of the ascast samples, suggesting improved mechanical properties. However, samples quenched in palm oil displayed better properties compared with that of water-quenched samples. This behavior was traced to the fact that the carbon particles in palm oil quenched samples were more uniform and evenly distributed, indicating the formation of more pearlite structure, than those quenched in water and the as-received samples.