Effect of austenitizing and tempering temperature and holding time on mechanical properties of advanced high-strength steels
Year: 2026
Type: article
Abstract: Reducing CO2 emissions is an urgent mission worldwide. Notably, 25% of CO2 emissions derive from the transport sector. Thus, reducing the weight of steel components in automotive parts was considered a way to lower CO2 emissions. To this end, advanced high-strength steels (AHSS) were researched and applied in automotive sheet steel. The present study investigates the mechanical properties of AHSS produce by different heat treatment processes of steel plates makes from a JIS-SCM435. Three different heat-treated processes were performed: (1) The steel was homogenised at 880°C for 30 min and then austenitised at 900°C for 15 min, followed by water quenching. Subsequently, the steel was tempered at 400°C for 30 min; (2) The steel was annealed at about 770°C for 30 min, followed by water quenching, and then tempered at 200°C for 30 min; (3) The steel was annealed at about 900oC for 30 min, followed by water quenching, then tempered at 200oC for 30 min. The results showed that heat-treated processes (1); and (3) obtained martensite phase steel with the ultimate tensile strength (UTS) of 2,150 MPa and 1,400 MPa, respectively. Dual-phase steel was obtained from the second process with a UTS of 1,900 MPa. The elongations of these heat-treated steels showed an insignificant difference.
Institution: Can Tho University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
SDG: Climate action
Open Access status: hybrid
OpenAlex ID: W7127044939