INTEK: Jurnal Penelitian
Vol 8, No 2 (2021): October 2021

Fatigue Characteritics of Medium Carbon Steel after Heat Treatment Using Sand as Cooling Media

Sunardi Sunardi (Universitas Sultan Ageng Tirtayasa)
Randu Randu (Universitas Sultan Ageng Tirtayasa)
Erny Listijorini (Universitas Sultan Ageng Tirtayasa)
Iman Saefuloh (Universitas Sultan Ageng Tirtayasa)
Hamdan Akbar Notonegoro (Universitas Sultan Ageng Tirtayasa)
Miftahul Jannah (Universitas Sultan Ageng Tirtayasa)



Article Info

Publish Date
19 Oct 2021

Abstract

Stress concentrations cause many machine element failures. Failure will occur more rapidly if the machine elements obtain repeated and fluctuating loading. For this reason, the material for machine elements must have better fatigue life. There are various attempts made to increase material life and other mechanical properties. In this study, the research sample used is AISI 4140 steel. The samples obtain hardening followed by cooling and tempering. The hardening temperature is 8500C with a holding time of 17 minutes. The cooling media in this research are dry sand, semi-wet sand, and wet sand. Wet measurements based on volumetric ratios. Semi-wet sand with a ratio of sand and water 4: 1, sandy sand 4: 2. The final process is tempering treatment, with a temperature of 2500C. The material fatigue test refers to the JIS Z 2274 Standard. From this study, the heat treatment given can reduce the fatigue life of the material, even though the hardness increases. The higher the cooling rate, the hardness of the material increases, but the fatigue life is low.

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Journal Info

Abbrev

Intek

Publisher

Subject

Education

Description

INTEK: Jurnal Penelitian sebagai wadah komunikasi ilmiah antar akademisi, peneliti dan praktisi dalam menyebarluaskan hasil penelitian. Jurnal INTEK Terbit 2 Kali dalam setahun yaitu pada Bulan April dan Oktober, dan memuat hasil-hasil penelitian dalam bidang Rekayasa Teknik Mesin, Rekayasa Teknik ...