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All Journal Jurnal Kimia dan Kemasan MESIN International Journal of Renewable Energy Development
Heri Jodi, Heri
Pusat Teknologi Bahan Industri Nuklit-BATAN Kawasan PUSPIPTEK Serpong, Tangerang 15314, Indonesia
Chemistry Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Mechanical Engineering

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Journal : MESIN

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Corrosion Studies On Ss-321 In Natrium-Hydroxide Solution S., Marzuki; Jodi, Heri; Effendi, Nurdin
MESIN Vol 9, No 3 (2007): Ocean Thermal Energy Conversion (OTEC) untuk "Pulau-pulau Kecil"
Publisher : Program Studi Teknik Mesin, Universitas Trisakti

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Abstract

Corrosion Studies On Ss-321 In Natrium-Hydroxide Solution. Experimental corrosionstudies on commercial SS-321 have been carried out. The experiments were carried out in a sodiumhydroxide medium with a concentration variation of 0.4 M. 0.5 M, 0.6 M, and0.7Mcorresponding topHvalues of 13.6, 13.69, 13.78, and 13.84 respectively. The experiments were carried out using a type ofM-273 EG&Gpotentiostat/galvanometer test instrument. The post-corrosion samples microstructure wereanalyzed with the aid of EDS (energy dispersive spectroscopy) equipped SEM instrument to detect thepresence of any viable corrosion byproducts. Forfurther verification x-ray diffraction method was alsoused to detect any possible emerging corrosion byproducts on the samples surfaces correlated to theSEM-EDS result. Experimental results confirm that A1SI-321 commercial alloys immersed in a natriumhydroxide corrosion medium with a variation of concentration experience very little or almost nocorrosion, so that according to the so-called Fontanas criteria these test-materials turn out to have anexcellent resistance toward natrium hydroxide corrosion. This is also evidenced by the very low corrosionrate value measured in this study. EDS study and X-ray diffraction results indicate that the possibleensuing corrosion byproducts are iron oxides, chromeoxides and silicon oxides.
Co-Authors Akhmad Herman Yuwono Anne Zulfia Bambang Priyono Eduardus Budi Nursanto Evi Yulianti Evvy Kartini Fachrudin, Adinandra Caesar Gumelar, Muhammad Dikdik johansyah johansyah Marzuki S., Marzuki Nurdin Effendi Rohmad Salam, Rohmad Rosiana Dwi Saputri, Rosiana Dwi Salsabila, Adinda Atalya Salsabila, Nadhifah Sari, Puspita Ayu Kusuma Sembiring, Rinawati Slamet Priyono Zulham Zulham