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All Journal Jurnal Furnace Trends in Mechanical Engineering Research
Suryana Suryana
Jurusan Teknik Metalurgi, Universitas Sultan Ageng Tirtayasa
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering

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Pengaruh Annealing terhadap Fasa dan Mikrostruktur Lapisan Fe-Mo-Al pada Baja Karbon Rendah yang Didepositkan dengan Teknik Pemanduan Mekanis Novan Hakiki; Suryana Suryana; Toto Sudiro
Jurnal Furnace Vol 4, No 2 (2021): NOVEMBER 2021
Publisher : Department of Metallurgical Engineering, Universitas Sultan Ageng Tirtayasa

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Abstract

Logam merupakan salah satu material yang paling banyak digunakan dalam kehidupan sehari-hari. Baja merupakan salah satu logam yang paling banyak dimanfaatkan terutama baja karbon rendah [World Steel Association, 2014]. Baja karbon rendah memiliki sifat mekanis yang baik namun memiliki ketahanan oksidasi yang rendah pada temperatur tinggi [Zhou, 2008]. Untuk melindungi logam pada temperatur tinggi dilakukan pelapisan dengan penambahan unsur seperti Fe Mo dan Al. Fasa intermetalik Fe-Al memiliki ketahanan korosi yang baik pada atmosfer karburasi, sulfidasi dan oksidasi [Haghighi, 2010]. Pemaduan mekanis merupakan salah satu metode untuk membentuk lapisan pada substrat secara mudah dan murah [Yongcan, 2014]. Pelapisan dengan teknik pemaduan mekanis dilakukan dalam shaker mill kemudian di annealing dengan temperatur 700oC dengan waktu tahan 1 jam. Kemudian dianalisa ketebalan lapisan yang berhasil didepositkan dengan menggunakan mikroskop optik. Karakterisasi fasa yang terbentuk sebelum dan setelah perlakuan panas dengan XRD dan mapping SEM-EDX untuk mengetahui distribusi unsur pada lapisan. Hasil menunjukan bahwa lapisan Fe-Mo-Al terdeposisi pada substrat. Penambahan Al menunjukan peningkatan ketebalan lapisan coating dengan rata-rata ketebalan 45,625µm menjadi 317,275µm dengan penambahan 50Al wt%. Proses annealing mendorong terbentuknya fasa-fasa intermetalik FeAl dan MoAl serta meningkatkan kerapatan lapisan coating yang terbentuk.
MECHANICAL PROPERTIES CHARACTERIZATION OF THE FRICTION WELDING OF ALUMUNIUM WITH COPPER USING VARIATIONS IN ROTATIONAL SPEED AND CONTACT SURFACE ROUGHNESS Saefuloh, Iman; Sunardi, Sunardi; Lusiani, Rina; Jannah, Miftahul; Suryana, Suryana
Trends in Mechanical Engineering Research Vol 1, No 2 (2023): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i2.25672

Abstract

One of the welding used for different materials is by using friction welding. Friction welding is a welding method by swiping the two materials until they reach some of the melting points of the materials to be joined and then subjected to constant pressure. In this study, the materials to be joined were aluminum and copper. By using variations of rotational speed and contact surface roughness, the mechanical properties of the welds were investigated. The speed variations used were 1230, 1500, and 2500 rpm. Meanwhile, for variations in surface roughness, sandpaper grades 100, 800, and 1500 were used. The results of this study were that at a rotational speed of 1230 rpm, the highest tensile strength and hardness values were obtained, namely 59.6 MPa and 54.6 HVN (Al), 112.1 HVN (Cu). For variations in surface roughness, the highest hardness value was found in surface roughness using sandpaper grade 1500, namely 54.18HVN (Al), and 112.1HVN (Cu). And the highest tensile strength is obtained on grade 100 sandpaper with a value of 52.48MPa. The results of the microstructure test in the weld joint area with a magnification of 1000x showed that the welding of aluminum and copper using the friction welding method was successful, as evidenced by the diffusion of aluminum and copper in this area.
Co-Authors Jannah, Miftahul Lusiani, Rina Novan Hakiki Saefuloh, Iman Sunardi, Sunardi Toto Sudiro