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All Journal JTT (Jurnal Teknologi Terapan) Quantum Teknika Creative Research in Engineering (CERIE)
Kacuk Cikal Nugroho
Program Studi S1 Teknik Mesin, Sekolah Tinggi Teknologi Warga Surakarta, Jl. Raya Solo Baki Km.2 Kwarasan, Sukoharjo, Jawa Tengah
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analisis Lapisan Hard Chrome dengan Heat Treatment terhadap Kekerasan dan Struktur Mikro pada Permukaan Baja Karbon S45C Bambang Hari Priyambodo; Margono Margono; Kacuk Cikal Nugroho
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 3, No 1 (2021): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v3i1.12284

Abstract

Generally, metals are easy to wear, so material modification is needed to increase hardness to increase the material's resistance to wear and tear. One way is to do a hard chrome plating process using the electroplating method and then continue the heat treatment process. This research was conducted to observe changes in the mechanical properties and microstructure of S45C steel that underwent hard chrome and heat treatment processes. This research was conducted by inserting S45C steel as a cathode into hard chrome liquid and using lead (Pb) as the anode. A positive (+) current powers the anode, the cathode has a negative current (-), the voltage used is 12 V with a duration of 60 minutes. After the cathode was coated with hard chrome, a hardness test was carried out, then continued with the heat treatment process using a temperature of 850°C for 30 minutes. The hardness test results show an increase in the hardness of S45C steel that has been coated with hard chrome, with a hardness value of S45C steel 202.70 VHN, S45C hard chrome steel 998.63 VHN. The highest hardness value is S45C steel coated with hard chrome 998.63 VHN, increasing 392.7%. Then the heat treatment process experienced a decrease in the hardness value, 528.90 VHN, with a percentage of 88.81%. The results of the microstructure observation showed that the hard chrome layer that had been heated treated showed even cracks in the hard chrome layer.
PENGARUH PERLAKUAN ANNEALING DAN SHOOT PEENING TERHADAP KEKERASAN DAN STRUKTUR MIKRO PADA BAJA KARBON JIS S45C Bambang Hari Priyambodo; Rizqi Ilmal Yaqin; Margono Margono; Kacuk Cikal Nugroho
Jurnal Teknologi Terapan Vol 7, No 2 (2021): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v7i2.347

Abstract

The industrial world is currently growing rapidly. The need for JIS S45C as a structural steel is increasing which is used to manufacture machine components. Efforts to improve the mechanical properties of steel can use heat treatment and surface treatment. One of the surface treatments that is often used in the industrial world is shot peening. This study aims to determine the effect of annealing and shot peening treatment on S45C steel. The effect of treatment is indicated by changes in the results of both transverse and surface hardness tests and the microstructure of the treatment results. The result is a change in the value of hardness and microstructure changes in JIS S45C from the effect of annealing and shot peening treatments. The highest hardness in the annealing heat treatment and the 15 minute shot peening treatment was 252.08 kgf/mm2. The shot peening treatment causes the grains to become finer from the surface to the subsurface depending on the distance from the surface to the surface depth. These changes cause the surface and subsurface of JIS S45C carbon steel to increase in mechanical properties.
Pengaruh Laju Pendingin Pada Proses Heat Treatment Terhadap Kekerasan Dan Struktur Mikro Baja Karbon S45C Margono margono; Bambang Hari Priyambodo; Kacuk Cikal Nugroho
Creative Research in Engineering Vol 1, No 2 (2021): Creative Research in Engineering (CERIE)
Publisher : Lembaga Publikasi Ilmiah dan Penerbitan (LPIP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1126.664 KB) | DOI: 10.30595/cerie.v1i2.10848

Abstract

Proses modifikasi sederhana untuk mengetahui kebijakan laju pendinginan terhadap struktur mikro dan sifat mekanik dari baja sedang. Baja karbon sedang dibentuk dan didirikan dalam tungku pada suhu 850C selama 30 menit dan waspada meggunakan laju pendinginan yang berbeda, yaitu: quenching, normalizing dan annealing. Hasil penelitian menunjukkan bahwa kekerasan baja karbon S45C menggunakan pendinginan pendinginan lebih tinggi dibandingkan normalisasi dan anneling. Nilai kekerasan yang diperoleh dari baja karbon S45C setelah dilakukan proses perlakuan panas dengan quenching, normalizing, dan anneling yaitu 674 HV, 208 HV dan 150 HV. spesimen setelah diberi perlakuan panas dengan pendinginan quenching mengalami peningkatan sekitar 31,6% dibandingkan dengan bahan baku yaitu 213 HV. Struktur mikro yang dihasilkan pada permukaan spesimen setelah diberi perlakuan panas dengan pendinginan pendinginan mengalami deformasi struktur ferrit menjadi pearlit dan martensit.
Co-Authors Bambang Hari Priyambodo Margono Margono Rizqi Ilmal Yaqin