Abstract
The coating layer of Fe–Al powders on the steel substrate was prepared by mechanical alloying at room temperature. Fe, Al, and the steel substrates were milled with high-energy ball milling for 32 h with a ball-to-powder ratio of 8 in an argon atmosphere to prevent oxidation during milling. Although mechanical alloying was performed for 32 h, no new phases were observed after mechanical alloying, as analyzed by X-ray diffraction. However, the crystallite size of the milled powders for 32 h decreased by factor two compared with the initial powders. Scanning electron micrographs showed that the coating layers formed >8 h after mechanical alloying. The intermetallic Fe3Al formed after the substrate was annealed at 500 ℃.
Bahasa Abstract
Pelapisan Serbuk Fe–Al yang Dibantu dengan Pemaduan Mekanik pada Substrat Baja. Lapisan yang telah dilapisi serbuk Fe–Al pada substrat baja dipreparasikan menggunakan metode paduan mekanik pada suhu ruang. Fe, Al dan substrat baja digiling menggunakan high-energy ball milling selama 32 jam dengan rasio antara bola pada serbuk 8 dan atmosfer argon untuk mencegah oksidasi selama proses penggilingan. Berdasarkan analisis difraksi sinar X, tidak ada fasa baru yang terbentuk setelah proses pemaduan mekanik selama 32 jam. Namun ukuran kristal serbuk yang digiling selama 32 jam menurun dibandingkan serbuk awal. Citra scanning electron microscope menunjukkan bahwa lapisan dapat terbentuk setelah pemaduan mekanik lebih dari 8 jam. Fasa intermetalik Fe3Al terbentuk setelah proses anil pada suhu 500 ºC.
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Recommended Citation
Noviyanto, Alfian; Harjanto, Sri; Widayatno, Wahyu Bambang; Wismogroho, Agus Sukarto; Amal, Muhamad Ikhlasul; and Rochman, Nurul Taufiqu
(2020)
"Mechanical Alloying-assisted Coating of Fe–Al Powders on Steel Substrate,"
Makara Journal of Technology: Vol. 24:
Iss.
3, Article 3.
DOI: 10.7454/mst.v24i3.3690
Available at:
https://scholarhub.ui.ac.id/mjt/vol24/iss3/3
Included in
Chemical Engineering Commons, Civil Engineering Commons, Computer Engineering Commons, Electrical and Electronics Commons, Metallurgy Commons, Ocean Engineering Commons, Structural Engineering Commons
