ABSTRACT
In this research work
the mechanical and microstructural property of medium carbon steel is
determined based on the quenching medium employed on it. Three quenching
mediums air, oil and water are studied to determine which better improves the
hardness and wear resistance properties of the mild steel rods used in the
study. The result and anafysis from the hrdne.sstest is compared with the
hardness of the same steel material when it is not heat treated A mild steel ,
:,' bar of 16 mm diameter and 180 mm length each was usedfor this study. The
stelroiY.s wer 1eated at an elevated temperatures of 700 °C, held at this
temperature for 45 seco,d.. Tien different quenching techniques were used to
bring down the temperarure of the metal to room temperature. The hardness of
each specimen ofthe mild steel rod- air cooled (specimen A), ok cooled
(specimen B) anl water cooled (specimen C) specimens were respectively
determined and compared against the mild thit was not heat treated (specimen
Z). The Rockwell hardness testing machine wa.used to determine thzardness of
the various specimens. The water cooled mild steel proved to have a higher
hardiiessvalue 79 HRB against all other quenching medium which had a hardness
value of 77 HRR for specimen A, 73 HRB for specimen B and 71 HR.B for specimen
Z hence th research revealed that the adoption of the water as a quenching
medium better improves the hardness and wqr ysstance of medium carbon steel.
IBEM, E (2021). Effects Of Quenchants On The Hardness And Wear Resistance Of A Medium Carbon Steel. Mouau.afribary.org: Retrieved Dec 23, 2024, from https://repository.mouau.edu.ng/work/view/effects-of-quenchants-on-the-hardness-and-wear-resistance-of-a-medium-carbon-steel-7-2
EMEA, IBEM. "Effects Of Quenchants On The Hardness And Wear Resistance Of A Medium Carbon Steel" Mouau.afribary.org. Mouau.afribary.org, 02 Nov. 2021, https://repository.mouau.edu.ng/work/view/effects-of-quenchants-on-the-hardness-and-wear-resistance-of-a-medium-carbon-steel-7-2. Accessed 23 Dec. 2024.
EMEA, IBEM. "Effects Of Quenchants On The Hardness And Wear Resistance Of A Medium Carbon Steel". Mouau.afribary.org, Mouau.afribary.org, 02 Nov. 2021. Web. 23 Dec. 2024. < https://repository.mouau.edu.ng/work/view/effects-of-quenchants-on-the-hardness-and-wear-resistance-of-a-medium-carbon-steel-7-2 >.
EMEA, IBEM. "Effects Of Quenchants On The Hardness And Wear Resistance Of A Medium Carbon Steel" Mouau.afribary.org (2021). Accessed 23 Dec. 2024. https://repository.mouau.edu.ng/work/view/effects-of-quenchants-on-the-hardness-and-wear-resistance-of-a-medium-carbon-steel-7-2