Corrosion behavior of flame sprayed Cr3C2-NiCr coating on A516 steel in chloride environment

Safitry Ramandhany, Eni Sugiarti, Djoko Triyono, Agus Sukarto Wismogroho, Hubby Izzuddin, Bambang Hermanto, Wahyu Bambang Widayatno, Toto Sudiro, Ahmad Afandi

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

Abstract

75Cr3C2-25NiCr coating was deposited on A516 steel by flame spray process to enhance high temperature corrosion resistance. Corrosion studies were investigated on bare and flame spray-coated steel after exposure at 600°C under cyclic condition in a molten salt environment (45% NaCl+55% KCl). The mass change measurements were performed after each cycle that consisted of 20 hours to establish the corrosion rate. Field emission scanning electron microscopy (FESEM) equipped with an energy dispersive X-ray analysis (EDS), X-ray diffraction (XRD), micro-vickers hardness, and 3D optical microscope (OM) were used to characterize the microstructure, elemental analysis, phase, mechanical properties, and surface roughness of the coatings, respectively. The spallation occurred on A516 steel without coating after corrosion test due to the formation of unprotective Fe2O3 oxide scales. On the contrary, Cr3C2-NiCr coating was found to be more protective by the formation of oxide scale consisted of Cr2O3 and spinels. The results showed that the corrosion rate and the surface roughness of Cr3C2-NiCr coating having lower value than that of A156 steel without coating which were approximately of 11.49 mm/y and 25.02 μm, respectively. However, the mechanical properties from vickers hardness measurement showed that Cr3C2-NiCr coating reached the highest value of about 364.77 HV.

Original languageEnglish
Title of host publicationInternational Conference on Advanced Material and Technology, ICAMT 2021
EditorsEvvy Kartini, Nofrijon Sofyan, Julwan Hendry Purba, Andika Widya Pramono
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735442832
DOIs
Publication statusPublished - 14 Nov 2022
Event2021 International Conference on Advanced Material and Technology, ICAMT 2021 - South Tangerang, Indonesia
Duration: 14 Dec 202116 Dec 2021

Publication series

NameAIP Conference Proceedings
Volume2708
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2021 International Conference on Advanced Material and Technology, ICAMT 2021
Country/TerritoryIndonesia
CitySouth Tangerang
Period14/12/2116/12/21

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