Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Mesin JTRM (Jurnal Teknologi dan Rekayasa Manufaktur) Metalurgi
Beny Bandanadjaja
Unknown Affiliation
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
ANALISIS PERUBAHAN SIFAT MEKANIK DAN STRUKTUR MIKRO BESI COR NODULAR 700 SETELAH MENGALAMI PROSES PERLAKUAN PANAS Rochim Suratman; Beny Bandanadjaja
Mesin Vol. 17 No. 2 (2002)
Publisher : Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Ferro casting ductile 700 (FCD 700) is a ferrous material with carbon content > 2 %. It has pearlitc microstructure with a little amount of ferrite and nodular graphite. In as-cast condition FCD 700 has tensile strength 700 N/mm2 , elongation 2 % min. , hardness 229 "“ 302 BHN and impact value 7 joule. Heat treatment process is a process that can be executed to ferrous material. With heating the material until a range of austenite temperature then controlling the cooling rate. The objective is to repair or to modify the mechanical properties of material belongs before. In this article there's a research about how far the exchange of mechanical properties or microstructure in FCD 700 if it being heat-treated. Cooling rate is given by isothermal and continuous condition. The variation of cooling rate and holding in some isothermal temperature is also accomplished. Research data affirm some gradation of mechanical properties and microstructure. The variety associate with cooling rate and isothermal holding which is performed.
Pengaruh Waktu Heat Treatment Terhadap Karakteristik Ceramic Coating Berpengikat Fosfat pada Baja Karbon Rendah Dewi Idamayanti; Beny Bandanadjaja; Andreas Yosafat
Jurnal Teknologi dan Rekayasa Manufaktur Vol 1 No 1 (2019): Vol 1 No 1 (2019): Volume: 1 | Nomor: 1 | April 2019
Publisher : Pusat Pengembangan, Penelitian dan Pengabdian kepada Masyarat (P4M) Politeknik Manufaktur Bandung (Polman Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (875.609 KB) | DOI: 10.48182/jtrm.v1i1.2

Abstract

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.
RANCANGAN PROSES MATERIAL AISI 4140 UNTUK MENINGKATKAN KUALITAS DIFFUSER YANG AUS KARENA BEBAN EROSI Beny Bandanadjaja; Dewi Idamayanti; Rinaldy Alviana Hanafi
Metalurgi Vol 34, No 3 (2019): Metalurgi Vol. 34 No. 3 Desember 2019
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (558.418 KB) | DOI: 10.14203/metalurgi.v34i3.485

Abstract

Part Diffuser merupakan bagian dari mesin Mill batu bara Pembangkit Listrik Tenaga Uap (PLTU) Bukit Asam yang terkikis habis oleh erosi serbuk batubara. Material asli yang digunakan sebelumnya adalah FC250+0,5%Cr yang memiliki nilai laju erosi 0,0015 mg/s dan harga impak 4,25 J/cm2. Material tersebut memiliki umur pakai hanya 6 bulan, sementara umur pakai yang diinginkan adalah minimal 18 bulan. Dalam penelitian ini dilakukan perancangan proses pada material AISI 4140 untuk menjadi pengganti material lama. Tujuannya untuk mendapatkan material pengganti yang memiliki umur pakai 18 bulan atau lebih. Selain sifat ketahanan erosi,  ketahanan terhadap munculnya retak akibat getaran juga menjadi tuntutan yang perlu diperhatikan. Dengan demikian yang menjadi batas atas adalah laju erosi material baru 1/3 laju erosi material asli yaitu sebesar 0,0005 mg/s dan batas bawahnya adalah adalah nilai impak material asli sebesar  4,25 J/cm2. Metode yang dipakai pada material AISI 4140 adalah dengan proses perlakuan panas normalising-hardening yang diikuti dengan variasi tempering 200 °C, 300 °C,450 °C dan 600 °C sebagai pilihan untuk dianalisis proses terbaiknya. Pengujian yang dilakukan adalah uji kekerasan Rockwell, Impak dan Jet Erosion Test. Dari hasil percobaan dapat diperoleh persamaan fungsi umur pakai U(x) terhadap kekerasan HRC (x), yaitu . Hasil terbaik diperoleh pada sampel dengan variasi tempering 200 °C dengan perkiraan umur 27 bulan dan tempering 450 °C dengan perkiraan umur pakai 18 bulan
Co-Authors Andreas Yosafat Dewi Idamayanti Idamayanti, Dewi Rinaldy Alviana Hanafi Rochim Suratman