The effect of citric acid concentration on corrosion behavior of austenitic stainless steel 316 l

Suwarno*, Handi Muhtadi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Stainless steel is commonly applied for food processing equipment because of its stability in acid-base conditions. However, corrosion and metal release from the steel can occur in some situations lead to food contamination and decrease the component reliability as well. The objective of the present work is to study the corrosion behavior of austenitic stainless steel 316 L in a water solution containing 9 wt.% NaCl mixed with different concentrations of citric acid. Immersion test and polarization measurements were conducted to quantify the corrosion rate and polarization behaviors of the samples. The result shows that the shape of polarization curves and the corrosion rate are pH dependence. An increased citric acid concentration until the pH value of 4 will enhance the passive film development, but the further increase in acidity aggravates the corrosion attack.

Original languageEnglish
Title of host publicationMechanical Engineering
Subtitle of host publicationAdvanced Materials Processing Technology
Editors Suwarno, Vivien Djanali, Fahmi Mubarok, Bambang Pramujati
PublisherTrans Tech Publications Ltd
Pages224-228
Number of pages5
ISBN (Print)9783035716870
DOIs
Publication statusPublished - 2020
Event4th International Conference on Mechanical Engineering, ICOME 2019 - Yogyakarta, Indonesia
Duration: 28 Aug 201929 Aug 2019

Publication series

NameKey Engineering Materials
Volume867 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference4th International Conference on Mechanical Engineering, ICOME 2019
Country/TerritoryIndonesia
CityYogyakarta
Period28/08/1929/08/19

Keywords

  • 316L
  • Citric acid
  • Corrosion
  • Stainless steel

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