Setiawan, H., Ruskandi, C., & Latif, A. (2025). Study of Hardening Process of AISI 1045 Steel Material with Variation of Heating Temperature, Media, and Cooling Media Volume for Shaft Application. nternational ournal of arine ngineering nnovation and esearch, 9(3), 560–567. https://doi.org/10.12962/j25481479.v9i3.4918