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All Journal Journal of Metallurgical Engineering and Processing Technology
Supriyadi Junus
Soerjo University
Chemical Engineering, Chemistry & Bioengineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering

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Atomic level investigation of Top of Line Corrosion API 5L Grade B Supriyadi Junus
Journal of Metallurgical Engineering and Processing Technology Vol 3, No 1 (August 2022)
Publisher : UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v3i1.7232

Abstract

Analisa kimia air terproduksi fluida yang mengalir melalui jalur pipa API 5L Grade B memiliki kadar chloride (Cl-) yang sangat tinggi. chloride merupakan salah satu senyawa paling agresif terutama dalam keadaan terlokalisasi yang akan mengakibatkan terbentuknya pitting corrosion. Oleh karena itu sebagai upaya untuk mengetahui morfologi korosi secara atomic yang terjadi pada pipa yang terpasang telah dilakukan pengujian komposisi fluida, pengujian laju korosi, pengujian SEM-EDX dan pengujian XRD (X Ray Difraction). Berdasarkan hasil pengujian laboratorium larutan fluida memiliki konsentrasi komposisi kimia chloride 10.000 ppm. Laju korosi pada sampel larutan fluida 5.9 mpy.  pengujian SEM – EDX menampilkan ciri – ciri produk korosi hematite dan magnetite. Adapun pengujian XRD di area yang mengalami pitting corrosion telah mengidentifikasi senyawa senyawa produk korosi dengan terbentuknya oksida. Mekanisme corrosion damage yang terbentuk akibat chloride yang terlokalisasi dan tertutup oleh oksida menyebabkan terbentuknya spot kebocoran di dalam pipa bagian atas (top of line corrosion).
Design Of Lifting Aid Materials To Optimize Waste Loading Into Sealed Containers Supriyadi Junus
Journal of Metallurgical Engineering and Processing Technology Vol 4, No 1 (August 2023)
Publisher : UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v4i1.10185

Abstract

Waste management in a field from 2016 to 2017 carried out using closed containers can only load 10 Jumbo Bags with an average weight of 6.74 tons per container. While the waste management cost component, 51.7% is influenced by the cost of transportation through containers. The problem of loading waste during handling is greatly influenced by the lifting aids used for loading so that it can maximize the loading of waste into closed containers which are transportation tools used to transport waste. This study will focus on designing lifting aid materials for loading waste into sealed containers.. The material used is 6" sch 40 pipe and 3“sch 40 pipe. The design was first simulated using stress analysis software to determine the threshold of yield strength of the material used. After production of the lifting aid, the welded joints was tested with magnetic testing which shows no defect.. The lifting aid is able to optimize the loading of waste as much as 1968 tons using 130 containers where each container contains 15 jumbo bags and weighs 15.14 tons. This can reduce the number of containers that are a major cost component in transporting waste.
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