Effect Of Austempering Process Parameters On The Mechanical Properties Of Mild Steel Quenched In A Mixture Of Used Engine Oil And Ash:- Nwakor, Emmanuel I
ABSTRACT
The study was aimed at enhancing the utilization
of a blend ofrecycled engine oil and ash as an appropriate quenchant for the
austempering heat treatment of mild steel. The objectives of the study were to
utilize Response Surface Methodology to create a model for efficient use of the
mixture as a quenchant, determine the optimal process parameters (time and
temperature) for austempering with the mixture and develop a predictive model to
guide the austempering process in achieving specific desired properties in mild
steel. The experimental was designed with Minitab resulting to 27 experimental
runs. The independent variables were temperature and time to determine the
hardness, impact energy and maximum load. The result showed that maximum
hardness of 190BHN, impact energy ofllOJ and maximum load of 6500W. The
optimization studied gave hardness value of 176.870, impact energy of 60.1852
and maximum load of 5964.81 at temperature of 870°C and time of27.7773mins with
desirability of 1. It was concluded from the studies that using the optimal
austempering time and temperature for achieving specific mechanical properties
suitable for a particular application can save cost ofproduction by reducing
energy cost
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EMMANUEL, I (2026). Effect Of Austempering Process Parameters On The Mechanical Properties Of Mild Steel Quenched In A Mixture Of Used Engine Oil And Ash:- Nwakor, Emmanuel I. Mouau.afribary.org: Retrieved Mar 24, 2026, from https://repository.mouau.edu.ng/work/view/effect-of-austempering-process-parameters-on-the-mechanical-properties-of-mild-steel-quenched-in-a-mixture-of-used-engine-oil-and-ash-nwakor-emmanuel-i-7-2
IFEANYI, EMMANUEL. "Effect Of Austempering Process Parameters On The Mechanical Properties Of Mild Steel Quenched In A Mixture Of Used Engine Oil And Ash:- Nwakor, Emmanuel I" Mouau.afribary.org. Mouau.afribary.org, 24 Mar. 2026, https://repository.mouau.edu.ng/work/view/effect-of-austempering-process-parameters-on-the-mechanical-properties-of-mild-steel-quenched-in-a-mixture-of-used-engine-oil-and-ash-nwakor-emmanuel-i-7-2. Accessed 24 Mar. 2026.
IFEANYI, EMMANUEL. "Effect Of Austempering Process Parameters On The Mechanical Properties Of Mild Steel Quenched In A Mixture Of Used Engine Oil And Ash:- Nwakor, Emmanuel I". Mouau.afribary.org, Mouau.afribary.org, 24 Mar. 2026. Web. 24 Mar. 2026. < https://repository.mouau.edu.ng/work/view/effect-of-austempering-process-parameters-on-the-mechanical-properties-of-mild-steel-quenched-in-a-mixture-of-used-engine-oil-and-ash-nwakor-emmanuel-i-7-2 >.
IFEANYI, EMMANUEL. "Effect Of Austempering Process Parameters On The Mechanical Properties Of Mild Steel Quenched In A Mixture Of Used Engine Oil And Ash:- Nwakor, Emmanuel I" Mouau.afribary.org (2026). Accessed 24 Mar. 2026. https://repository.mouau.edu.ng/work/view/effect-of-austempering-process-parameters-on-the-mechanical-properties-of-mild-steel-quenched-in-a-mixture-of-used-engine-oil-and-ash-nwakor-emmanuel-i-7-2