Effect of Heat Treatment on Hardness and Microstructures of AISI 1045

Ibrahim, A.; Sayuti, M

doi:10.4028/www.scientific.net/amr.1119.575

Cited by 22 publications

(10 citation statements)

References 8 publications

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“…The samples were purchased and chemical composition was analyzed using Optical Emission Spectrometry (O.E.S.) [1](Table 1). The specimens were prepared as required by the standards, such as for Charpy impact testing, the V-notch of specific geometry was prepared.…”

Section: Methodsmentioning

confidence: 99%

Influence of Heat-Treatment on Microstructural and Mechanical Characteristic of Steel

2021

Sindh Univ. Res. Jour

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The AISI 1045 steel is one of the structural steels widely used in the automotive sector for several key components such as connecting shafts, axles etc. It is also used in petrochemicals and power generation units. In material science and engineering, four interdependent parameters are of paramount importance: process, structure, properties and performance. Among all factors, the microstructure is of utmost importance since it governs the properties at large. For instance, the shape, size and distribution of micro- constituents play a vital role therein. Therefore, the main objective is to investigate the influence of thermal correlation on the material, such as annealing, normalizing, tempering and hardening. This was followed by the characterization utilizing Optical Emission Spectroscopy, Impact Testing and Rockwell Hardness Tester. In addition, the microstructure was also studied using the Optical Microscope with up to 1000x optical zoom. Results suggested an improved toughness and hardness when tempering temperature was reduced. This is attributed to decreased grain sizes of micro-constituents upon such treatment.

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Section: Methodsmentioning

confidence: 99%

Influence of Heat-Treatment on Microstructural and Mechanical Characteristic of Steel

2021

Sindh Univ. Res. Jour

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“…These results show that the wear rate of top foil increases with an increase in HT temperature. This is because the hardness of the heated sample is reduce with the rise in HT temperature [36]. Whereas, the surface roughness of bump-type FJB first decreases with an increase in HT temperature and then starts increasing.…”

Section: Heat Treatment Variables 411 Ht Temperature (H Temp )mentioning

confidence: 98%

Impact of Heat Treatment on the Rubbing Behavior of Bump-Type Foil Journal Bearing

Mourya,

Bhore

2024

Tribology Online

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Under low-speed or start/stop conditions, the rubbing of top foil in foil journal bearing (FJB) prompting the application of heat treatment to improve the rubbing behavior of the foil bearing. During heat treatment, various factors can influence the thermo-physical properties of foil. Therefore, the present study is carried out to analyze the impact of heat treatment variables on the rubbing behavior of FJB. To obtain it, bump-type FJBs are fabricated using SS 316 foil material with a corrugated die. Subsequently, experimental investigations of the developed bump-type FJB are conducted based on response surface methodology. The rubbing behavior of the FJB, including wear rate and surface roughness, is evaluated under various heat treatment conditions. The results indicate that both the wear rate and surface roughness of bump-type FJB decrease with increasing HT time duration. Furthermore, it is observed that the temperature distribution of the heated foil becomes more uniform with longer HT time durations. At the optimal HT variables of 500°C and 3 hours, the surface roughness and rubbing temperature of bump-type FJB are measured at 1.295 μm and 55.20°C, respectively. Additionally, the rubbing temperature of bump-type FJB is thoroughly evaluated.

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“…Baja AISI 1045 merupakan baja karbon sedang dengan komposisi karbon 0,43%-0,50% [1]- [3]. Baja ini memiliki sifat mampu mesin yang baik, wear resistance-nya baik dan sifat mekaniknya menengah [3].…”

Section: Pendahuluanunclassified

Pengaruh Variasi Media Quenching dan Tempering terhadap Struktur Mikro dan Kekerasan Baja AISI 1045

Hariningsih¹,

Daryanto²,

Lutiyatmi³

2022

CERIE

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Baja AISI 1045 banyak digunakan di berbagai industri karena harganya yang lebih murah dan memiliki kemampuan yang tinggi untuk dikeraskan (hardenability) dengan perlakuan panas. Sifat material setelah perlakuan panas sangat dipengaruhi oleh laju pendingin. Oleh karena itu penelitian ini membahas studi eksperimental kekerasan dan struktur mikro baja karbon AISI 1045 setelah hardening-quenching dan tempering. Hardening dilakukan pada suhu 850°C selama 30 menit, kemudian dilanjutkan dengan pendinginan cepat (quenching) menggunakan air, oli isorapid dan oli SAE20W50. Tempering dilakukan dengan memanaskan kembali sampel yang telah di-quenching menggunakan air pada suhu 350°C dengan waktu tahan 30 menit dan 60 menit, kemudian dilanjutkan dengan pendinginan di udara bebas. Kekerasan benda uji diukur menggunakan alat uji kekerasan Rockwell dan struktur mikro diamati dengan mikroskop optik. Hasil uji kekerasan menunjukkan quenching dengan air menghasilkan kekerasan tertinggi sebesar 61,24 HRC, dengan struktur mikro martensit dan setelah tempering berubah menjadi struktur martensit temper. Waktu tahan tempering yang lebih lama menghasilkan kekerasan yang lebih rendah.

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Effect of Heat Treatment on Hardness and Microstructures of AISI 1045

Cited by 22 publications

References 8 publications

Influence of Heat-Treatment on Microstructural and Mechanical Characteristic of Steel

Influence of Heat-Treatment on Microstructural and Mechanical Characteristic of Steel

Impact of Heat Treatment on the Rubbing Behavior of Bump-Type Foil Journal Bearing

Pengaruh Variasi Media Quenching dan Tempering terhadap Struktur Mikro dan Kekerasan Baja AISI 1045

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