Corrosion behavior of super austenitic stainless steel, Duplex 2205 and 316L in sulfamic acid environment

Bashari Rohululloh Roszardi; Rini Riastuti; Wahyu Budiarto; Nono Darsono; Adi Noer Syahid

doi:10.24036/jptk.v4i4.24323

Authors

Bashari Rohululloh Roszardi Department of Metallurgy and Materials, Faculty of Engineering, Universitas Indonesia, INDONESIA
Rini Riastuti Department of Metallurgy and Materials, Faculty of Engineering, Universitas Indonesia, INDONESIA
Wahyu Budiarto Department of Metallurgy and Materials, Faculty of Engineering, Universitas Indonesia, INDONESIA
Nono Darsono Department of Metallurgy and Materials, Faculty of Engineering, Universitas Indonesia, INDONESIA
Adi Noer Syahid Research Center for Metallurgy and Material, National Research and Innovation Agency, INDONESIA

DOI:

https://doi.org/10.24036/jptk.v4i4.24323

Keywords:

Corrosion rate, Super austenitic, Stainless steel, Duplex 2205 and 316L, Sulfamic acid

Abstract

Currently, sulfamic acid as a primary chemical industrial material is ubiquitous. One of its uses is a sweetener. Due to its corrosive nature, it is necessary to use a suitable container to avoid contamination of the solution. Corrosion behavior of super austenitic stainless steel, duplex 2205, and 316L uncovered to sulfamic acid in diverse attention at ambient temperature had been investigated. Concentration Weight loss method, Potentiodynamic Polarization, and Electrochemical Impedance Spectroscopy (EIS) examined the corrosion rate. The result showed that the corrosion rate of material increased with the increasing concentration of sulfamic acid. Super austenitic stainless steel has higher corrosion resistance than duplex 2205 and 316L.

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