KARAKTERISASI SIFAT MEKANIK DAN STRUKTUR MIKRO PADA BAJA PADUAN RENDAH HASIL PROSES HARDENING
DOI:
https://doi.org/10.21776/jrm.v14i1.1080Keywords:
Low Alloy Steel, Hardening, Oil, Hardness, Impact, MicrostructureAbstract
The purpose of this study was to determine how the mechanical properties and microstructure formed on low alloy steel (tooth bucket) heated at temperatures of 850 ⁰C and 850 ⁰C then held for 15 minutes after that it was cooled with oil. The material hardening process was carried out by testing the Vickers hardness, impact, and observing the microstructure using an optical microscope with 200x magnification. Hardness values obtained from low alloy steel after heat treatment at temperatures of 800 ⁰C and 850 ⁰C are 389.2 HV and 414.6 HV. The optimum hardness is obtained at a temperature of 850 ⁰C with an increase of about 1.14% compared to that of raw material, which is 364.5 HV. From the results of the impact test on heat treatment with a temperature of 850 ⁰C, the highest impact value is 0.574 Joule/mm2. Furthermore, the results of the microstructure on heat treatment at a temperature of 850 ⁰C resulted in homogeneous microstructures, namely chrome, martensite, and bainite.
References
A. KELES and M. YILDIRIM, “Improvement of mechanical properties by means of titanium alloying to steel teeth used in the excavator,” Eng. Sci. Technol. An Int. J., vol. 23, no. 5, pp. 1208–1213, 2020.
S. H. SURYO, A. P. BAYUSENO, J. JAMARI, and M. A. R. RAMADHAN, “Analysis of AISI material power of AISI 4140 bucket teeth excavator using influence of abrasive wear,” in AIP Conference Proceedings, 2018, vol. 1977, pp. 30022–9.
Z.-M. LI et al., “Effect of coiling and annealing temperatures on yield point behavior of low ‑ carbon steel,” J. Iron Steel Res. Int., vol. 27, no. 3, pp. 325–333, 2019.
O. O. AGBOOLA et al., “Optimization of heat treatment parameters of medium carbon steel quenched in different media using Taguchi method and grey relational analysis,” Heliyon, vol. 6, no. July, p. e04444, 2020.
MARGONO, B. H. PRIYAMBODO, and K. C. NUGROHO, “Pengaruh Laju Pendingin Pada Proses Heat TreatmentTerhadap Kekerasan Dan Struktur Mikro Baja Karbon S45C,” Creat. Res. Eng., vol. 1, no. 1, pp. 19–23, 2021.
A. O. O. A. A. A. Adeleke, P. P. Ikubanni, T. A. Orhadahwe, J. O. Aweda, J. K. Odusote, “Microstructural assessment of AISI 1021 steel under rapid cyclic heat treatment process,” Results Eng., vol. 4, no. 9, pp. 100044–4, 2019.
A. A. ADELEKE et al., “Tensile strength and micro-structural behavior f medium carbon steel quenched in some selected media,” Int. J. Civ. Eng. Technol., vol. 9, no. 10, pp. 2148–2156, 2018.
AWEDA, T. A. J.O., ORHADAHWE, and I. . OHIJEAGBON, “Rapid Cyclic Heating of Mild Steel and its Effects on Microstructure and Mechanical properties,” in IOP Conf. Series: Materials Science and Engineering, 2018, vol. 413, p. 12016.
S. V, P. DINESH, and S. B. PATIL, “Study of Mechanical Properties of Steel Quenched in a Blend of Biodegradable Oils with Quench Accelerators,” IJLTEMAS, vol. 5, no. 5, pp. 20–24, 2016.
F. X. DING, L. . LAN, Y. . YU, and M. K. MAN, “Experimental study of the effect of a slow-cooling heat treatment on the mechanical properties of high strength steels,” Constr. Build. Mater., vol. 241, no. 1, pp. 118020–12, 2020.
M. KADOWAKI, I. MUTO, H. KATAYAMA, H. MASUDA, Y. SUGAWARA, and N. HARA, “Effectiveness of an intercritical heat-treatment on localized corrosion resistance at the microstructural boundaries of medium-carbon steels,” Corros. Sci., vol. 154, no. April, pp. 159–177, 2019.
P. P. IKUBANNI, A. A. ADEDIRAN, A. A. ADELEKE, K. R. AJAO, and O. O. AGBOOLA, “Mechanical Properties Improvement Evaluation of Medium Carbon Steels Quenched in Different Media,” Int. J. Eng. Res. Africa, vol. 32, no. 9, pp. 1–10, 2017.
H. JO et al., “Effects of Cooling Rate during Quenching and Tempering Conditions on Microstructures and Mechanical Properties of Carbon Steel Flange,” Materials (Basel)., vol. 13, no. 9, pp. 4186–16, 2020.
N. T. ATMOKO, MARGONO, and B. H. PRIYAMBODO, “Analisa Pengaruh Penambahan Mn 1,3% dan Prose Quenching pada Besi Cor Kelabu Terhadap Kekerasan dan Struktur Mikro,” Rotasi, vol. 23, no. 3, p. 88, 2021.
M. NOUROOZI, H. MIRZADEH, and M. ZAMANI, “Effect of microstructural refinement and intercritical annealing time on mechanical properties of high-formability dual phase steel,” Mater. Sci. Eng. A, vol. 736, no. 8, pp. 22–26, 2018.
B. C. KANDPAL et al., “Effect of heat treatment on properties and microstructure of steels,” Mater. Today Proc., vol. xxx, no. xxxx, pp. 1–7, 2020.
A. PANGALINAN and R. J. DIMU, “Pengaruh Hardening Dengan Media Quenching Fluida Getah Pohon Pisang Terhadap Struktur Mikro Dan Komposisi Kimia Baja Karbon Sedang,” Rekayasa Mesin, vol. 10, no. 8, pp. 131–138, 2019.
YURIANTO, PRATIKTO, R. SOENOKO, and W. SUPRAPTO, “Optimasi Parameter Quenching dan Tempering pada HRP Steel Lokal sebagai Baja Armor Nasional,” J. Rekayasa Mesin, vol. 9, no. 2, pp. 143–148, 2018.
J. YANG, F. HUANG, Z. GUON, Y. RONG, and N. CHEN, “Effect of retained austenite on the hydrogen embrittlement of a medium carbon quenching and partitioning steel with refined microstructure,” Mater. Sci. Eng. A, vol. 665, no. 4, pp. 76–85, 2016.
A. KARMAKAR et al., “Effect of Cooling Rate and Chemical Composition on Microstructure and Properties of Naturally Cooled Vanadium-Microalloyed Steels,” Metall. Mater. Trans. A, vol. xxx, no. 1, pp. 1–15, 2017.
G. SINGH, “A review on effect of heat treatment on the properties of mild steel,” Mater. Today Proc., vol. xxx, no. xxxx, p. xxx, 2020.
S.-J. JIA, B. LI, Q.-Y. LIU, Y. REN, S. ZHANG, and H. GAO, “Effects of continuous cooling rate on morphology of granular bainite in pipeline steels,” J. Iron Steel Res. Int, vol. xxx, no. 2, p. xxxx, 2020.
S. PASHANGEH, S. S. G. BANADKOUKIA, and M. C. SOMANI, “Abnormal mechanical response in a silicon bearing medium carbon low alloy steel following quenching and bainitic holding versus quenching and partitioning treatment,” J. Mater. Res. Technol., vol. 9, no. 3, pp. 5007–5023, 2020.
A. SAASTAMOINEN, A. KAIJALAINEN, J. HEIKKALA, D. PORTER, and P. SUIKKANEN, “The effect of tempering temperature on microstructure , mechanical properties and bendability of direct-quenched low-alloy strip steel,” Mater. Sci. Eng. A, vol. 730, no. 4, pp. 284–294, 2018.
ASSISTANT PROF. DR. ZEYAD D. KADHIM, “Effect of Quenching Media on Mechanical Properties for Medium Carbon Steel,” J. Eng. Res. Appl., vol. 6, no. 8, pp. 26–34, 2016.
W. LIU, M. ZANG, Z. ZHENG, and Q. WANG, “Influence of Cooling Process on Microstructure and Property of Low- Carbon V – N Micro-alloyed Medium and Heavy High-Strength Steel,” Metallogr. Microstruct. Anal., vol. 7, no. 4, pp. 434–442, 2018.
B. H. PRIYAMBODO, MARGONO, K. C. NUGROHO, N. T. ATMOKO, and R. I. YAQIN, “Effect of Oil Quenching and Shot Peening to Improve Hardness Behavior of S45C Carbon Steel,” Mater. Sci. Forum, vol. 1067, pp. 27–33, 2022.
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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
