TY - JOUR
T1 - Mechanical properties of heat-treated medium carbon steel in renewable and biodegradable oil
AU - Johnson, Oluwagbenga T.
AU - Ogunmuyiwa, Enoch N.
AU - Ude, Albert U.
AU - Gwangwava, Norman
AU - Addo-Tenkorang, Richard
N1 - Publisher Copyright:
© 2019 The Authors. Published by Elsevier B.V.
PY - 2019
Y1 - 2019
N2 - The heat treatment of steels under controlled conditions alters their physical and mechanical properties, enabling them to meet the desired engineering applications. In this study, the suitability of a Namibian local oil (marula oil) as an alternative quenchant to SAE40 engine oil (Standard quenchant - a synthetic oil derived from natural or crude oil) for industrial heat treatment of medium carbon steels was investigated. SAE40 engine oil served as the control. The mechanical properties (tensile strength, yield strength, percentage elongation and hardness) of the treated and untreated samples were investigated at the temperatures of 850oC, 900oC, 950oC and 1000oC. The untreated sample had the highest amount of elongation (40%), while the sample quenched in marula oil had the highest hardness (24.33HRD) and tensile strength (530.32 N/mm2) values compared with both the untreated and the SAE40 engine oil quenched samples. Hence, marula oil showed high potential as an alternative quenchant to petroleum based SAE40 engine oil for quenching medium carbon steels, without cracking or distortion.
AB - The heat treatment of steels under controlled conditions alters their physical and mechanical properties, enabling them to meet the desired engineering applications. In this study, the suitability of a Namibian local oil (marula oil) as an alternative quenchant to SAE40 engine oil (Standard quenchant - a synthetic oil derived from natural or crude oil) for industrial heat treatment of medium carbon steels was investigated. SAE40 engine oil served as the control. The mechanical properties (tensile strength, yield strength, percentage elongation and hardness) of the treated and untreated samples were investigated at the temperatures of 850oC, 900oC, 950oC and 1000oC. The untreated sample had the highest amount of elongation (40%), while the sample quenched in marula oil had the highest hardness (24.33HRD) and tensile strength (530.32 N/mm2) values compared with both the untreated and the SAE40 engine oil quenched samples. Hence, marula oil showed high potential as an alternative quenchant to petroleum based SAE40 engine oil for quenching medium carbon steels, without cracking or distortion.
KW - Heat treatment
KW - Marula oil
KW - Mechanical properties
KW - Medium carbon steels
UR - http://www.scopus.com/inward/record.url?scp=85072394475&partnerID=8YFLogxK
U2 - 10.1016/j.promfg.2019.05.032
DO - 10.1016/j.promfg.2019.05.032
M3 - Conference article
AN - SCOPUS:85072394475
SN - 2351-9789
VL - 35
SP - 229
EP - 235
JO - Procedia Manufacturing
JF - Procedia Manufacturing
T2 - 2nd International Conference on Sustainable Materials Processing and Manufacturing, SMPM 2019
Y2 - 8 March 2019 through 10 March 2019
ER -