CORROSION STUDY OF AISI 304 ON KOH, NaOH, AND NaCL SOLUTION AS AN ELECTRODE ON ELECTROLYSIS PROCESS

CORROSION STUDY OF AISI 304 ON KOH, NaOH, AND NaCL SOLUTION AS AN ELECTRODE ON ELECTROLYSIS PROCESS

AISI 304 is a kind of austenitic stainless steel that can be applied for various technologies. Since AISI 304 consists of chromium, nickel, and other materials, understanding the performance of this material is different from its parent material (i.e., iron oxide). Here, the purpose of this study wa...

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Bibliographic Details
Published in:Journal of engineering science & technology Vol. 13; no. 5; pp. 1345 - 1351
Main Authors: IDA HAMIDAH, AGUS SOLEHUDIN, AGUS SETIAWAN, AAM HAMDANI, MUHAMMAD ARIF SAIFUL HIDAYAT, FAJAR ADITYAWARMAN, FITRI KHOIRUNNISA, ASEP BAYU DANI NANDIYANTO
Format: Journal Article
Language:English
Published: Taylor's University 01-05-2018
Subjects:
AISI 304
Corrosion rate
EDS
SEM
Weight loss method
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Summary:AISI 304 is a kind of austenitic stainless steel that can be applied for various technologies. Since AISI 304 consists of chromium, nickel, and other materials, understanding the performance of this material is different from its parent material (i.e., iron oxide). Here, the purpose of this study was to investigate the characteristics of AISI 304 on various electrolyte solutions (i.e., KOH, NaOH, and NaCl). The electrolyte solution selection is an important parameter for getting high efficiency in the electrolysis process. To precisely investigate the effect of the electrolyte solution on the performance of AISI 304, several analyses were conducted: weight loss method measurement and scanning electron microscope (SEM) equipped with energy dispersive x-ray spectroscopy (EDS). The result showed that the AISI 304 had low corrosion rate in all electrolyte solution variations. The low corrosion rate of AISI 304 can be obtained due to the existence of chromium oxide which can be identified by EDS. During the immersion of AISI 304 into electrolyte solution, pitting corrosion in the microstructure level was formed, detected by the SEM analysis. This study confirmed that although there is some corrosion phenomenon, AISI 304 can be classified as a good candidate material to be applied in the process conducted in the either acid or basic conduction.
ISSN:1823-4690