Pengaruh Waktu Heat Treatment Terhadap Karakteristik Ceramic Coating Berpengikat Fosfat pada Baja Karbon Rendah

Jurnal Teknologi dan Rekayasa Manufaktur (JTRM)

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Title Pengaruh Waktu Heat Treatment Terhadap Karakteristik Ceramic Coating Berpengikat Fosfat pada Baja Karbon Rendah
Creator Idamayanti, Dewi
Bandanadjaja, Beny
Yosafat, Andreas
Subject Ceramic Coating
Perlakuan panas
Ceramic coating
Perlakuan panas
Description Low carbon steel is commonly used in the coal handling industry, but has low erosion and corrosion resistance. Hence, there is often a performance decrease due to the work environment that causes erosion and corrosion. Therefore, phosphate-bonded ceramic coating is applied. Al (OH) 3 and H3PO4 are used as a base material of binder. SiC (silicon carbide) and alumina are ceramic particles which is used in this research. The heat treatment was carried out for 1 hour, 3 hours and 5 hours to determine the effect of heat treatment time on phosphate bonded ceramic characteristics. The SEM results show that the longer of the heat treatment time, the more vacancies are formed. To determine erosion resistance of ceramic coating, erosion test is conducted, and the result show that erosion rate of ceramic coating with addition of SiC particles was 7.5 mg/Kg and without SiC was 14.2 mg/Kg. To make sure of berlinite, water resistance test was carried out, because berlinite is not soluble in water and will not lose mass significantly if it’s immersed in water. The losses obtained from the water resistance test were 0.074 %. The results of the overall characterization performed showed that the longer the heat treatment time, erosion resistance and water resistance increased in the span of 1 to 5 hours.
Baja karbon rendah merupakan material yang biasa digunakan dalam industri penanganan batu bara, tapi memiliki ketahanan erosi dan korosi yang rendah. Oleh karena itu, dilakukan pelapisan ceramic coating berpengikat fosfat. Al(OH)3 dan H3PO4 digunakan sebagai bahan dasar binder. Partikel ceramic yang digunakan adalah Al2O3 dan SiC. Pada pembuatan ceramic coating berpengikat fosfat ini dilakukan heat treatment selama 1 jam, 3 jam dan 5 jam untuk mengetahui pengaruh waktu heat treatment terhadap karakteristik ceramic coating. Pengamatan menggunakan SEM menunjukkan semakin lamanya waktu heat treatment semakin banyak vacancy yang terbentuk. Dilakukan pengujian erosi untuk mengetahui ketahanan erosi ceramic coating dan hasil pengujian menunjukkan nilai erosion rate ceramic coating dengan partikel SiC sebesar 7,5 mg/Kg dan tanpa partikel SiC sebesar 14,2 mg/Kg. Kemudian dilakukan pengujian ketahanan air, didapatkan losses dari ceramic coating sebesar 0,074%. Hasil dari keseluruhan karakterisasi yang dilakukan menunjukkan, bahwa semakin lama waktu heat treatment ketahanan erosi dan ketahanan air meningkat pada rentang waktu heat treatment 1 – 5 jam.
Publisher Politeknik Manufaktur Bandung (Polman Bandung)
Date 2019-12-01
Type info:eu-repo/semantics/article
Format application/pdf
Source Jurnal Teknologi dan Rekayasa Manufaktur ; Vol 1 No 1 (2019): Vol 1 No 1 (2019): Volume: 1 | Nomor: 1 | April 2019; 13-22
Language ind
Rights Copyright (c) 2019 Politeknik Manufaktur Bandung

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