SURFACE QUALITY AND CORROSION RESISTANCE OF 316L STAINLESS STEEL ELECTROPOLISHED USING PHOSPHORIC – SULFURIC ACIDS

Electropolishing is an electrochemical surface finishing technique. It is commonly applied to equipment that requires a gleaming finish. This surface property is frequently required in 316L stainless steel (SS) medical implants. Electropolishing removes a thin layer from the metal's surface thr...

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Main Authors: Hudiyo Firmanto, Budhyantoro Arief
Format: Article
Language:English
Published: University of Brawijaya 2023-12-01
Series:Rekayasa Mesin
Subjects:
Online Access:https://rekayasamesin.ub.ac.id/index.php/rm/article/view/1333
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author Hudiyo Firmanto
Budhyantoro Arief
author_facet Hudiyo Firmanto
Budhyantoro Arief
author_sort Hudiyo Firmanto
collection DOAJ
description Electropolishing is an electrochemical surface finishing technique. It is commonly applied to equipment that requires a gleaming finish. This surface property is frequently required in 316L stainless steel (SS) medical implants. Electropolishing removes a thin layer from the metal's surface through electrochemical processes. This results in a very clean, smooth, and bright metal surface. The process parameters, such as electrolyte solution, electrical current, and electropolishing time, influence surface roughness and glossiness. The dissolution of metallic ions during the process may also affect the corrosion resistance of the treated material in addition to producing a shiny surface. This study investigated the surface glossiness, surface roughness, and corrosion of electropolished 316L SS. Electropolishing experiments on 316 SS were carried out using various H3PO4 (50%) and H2SO4 (32%) electrolyte solution compositions. The influences of electrolyte solution composition, electric current, and electropolishing time were studied. The results showed that increasing the H2SO4 content of the mixture and electropolishing the 316L SS for a longer period of time improved the surface roughness and glossiness. Under 10 Amp electric currents, the best surface glossiness was discovered. A corrosion test revealed that the electropolishing produced a Cr and Ni-rich layer that improved the corrosion resistance of the samples.
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spelling doaj.art-792aed21856a4c1daa414ef48ffd03e32023-12-30T14:38:30ZengUniversity of BrawijayaRekayasa Mesin2338-16632477-60412023-12-0114382383410.21776/jrm.v14i3.13331044SURFACE QUALITY AND CORROSION RESISTANCE OF 316L STAINLESS STEEL ELECTROPOLISHED USING PHOSPHORIC – SULFURIC ACIDSHudiyo Firmanto0Budhyantoro Arief1Universitas SurabayaUniversitas SurabayaElectropolishing is an electrochemical surface finishing technique. It is commonly applied to equipment that requires a gleaming finish. This surface property is frequently required in 316L stainless steel (SS) medical implants. Electropolishing removes a thin layer from the metal's surface through electrochemical processes. This results in a very clean, smooth, and bright metal surface. The process parameters, such as electrolyte solution, electrical current, and electropolishing time, influence surface roughness and glossiness. The dissolution of metallic ions during the process may also affect the corrosion resistance of the treated material in addition to producing a shiny surface. This study investigated the surface glossiness, surface roughness, and corrosion of electropolished 316L SS. Electropolishing experiments on 316 SS were carried out using various H3PO4 (50%) and H2SO4 (32%) electrolyte solution compositions. The influences of electrolyte solution composition, electric current, and electropolishing time were studied. The results showed that increasing the H2SO4 content of the mixture and electropolishing the 316L SS for a longer period of time improved the surface roughness and glossiness. Under 10 Amp electric currents, the best surface glossiness was discovered. A corrosion test revealed that the electropolishing produced a Cr and Ni-rich layer that improved the corrosion resistance of the samples.https://rekayasamesin.ub.ac.id/index.php/rm/article/view/1333316lstainless steelelectropolishingglossinesscorrosion
spellingShingle Hudiyo Firmanto
Budhyantoro Arief
SURFACE QUALITY AND CORROSION RESISTANCE OF 316L STAINLESS STEEL ELECTROPOLISHED USING PHOSPHORIC – SULFURIC ACIDS
Rekayasa Mesin
316l
stainless steel
electropolishing
glossiness
corrosion
title SURFACE QUALITY AND CORROSION RESISTANCE OF 316L STAINLESS STEEL ELECTROPOLISHED USING PHOSPHORIC – SULFURIC ACIDS
title_full SURFACE QUALITY AND CORROSION RESISTANCE OF 316L STAINLESS STEEL ELECTROPOLISHED USING PHOSPHORIC – SULFURIC ACIDS
title_fullStr SURFACE QUALITY AND CORROSION RESISTANCE OF 316L STAINLESS STEEL ELECTROPOLISHED USING PHOSPHORIC – SULFURIC ACIDS
title_full_unstemmed SURFACE QUALITY AND CORROSION RESISTANCE OF 316L STAINLESS STEEL ELECTROPOLISHED USING PHOSPHORIC – SULFURIC ACIDS
title_short SURFACE QUALITY AND CORROSION RESISTANCE OF 316L STAINLESS STEEL ELECTROPOLISHED USING PHOSPHORIC – SULFURIC ACIDS
title_sort surface quality and corrosion resistance of 316l stainless steel electropolished using phosphoric sulfuric acids
topic 316l
stainless steel
electropolishing
glossiness
corrosion
url https://rekayasamesin.ub.ac.id/index.php/rm/article/view/1333
work_keys_str_mv AT hudiyofirmanto surfacequalityandcorrosionresistanceof316lstainlesssteelelectropolishedusingphosphoricsulfuricacids
AT budhyantoroarief surfacequalityandcorrosionresistanceof316lstainlesssteelelectropolishedusingphosphoricsulfuricacids