TY - JOUR
T1 - Surface Modification of 304L Stainless Steel and Interface Engineering by HiPIMS Pre-Treatment
AU - Chabanon, Angélique
AU - Michau, Alexandre
AU - Schlegel, Michel Léon
AU - Gündüz, Deniz C.
AU - Puga, Beatriz
AU - Miserque, Frédéric
AU - Schuster, Frédéric
AU - Maskrot, Hicham
AU - Pareige, Cristelle
AU - Cadel, Emmanuel
AU - Beainy, Georges
AU - Cloute-Cazalaa, Véronique
AU - Narasimalu, Srikanth
AU - Yao, Bingqing
AU - Dong, Zhili
AU - Balbaud-Célérier, Fanny
N1 - Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/6
Y1 - 2022/6
N2 - A clean and defect-free substrate/coating interface is required to guarantee good adhesion of coatings under service conditions. For this purpose, an etching pre-treatment using High-Power Impulse Magnetron Sputtering (HiPIMS) was performed to modify the surface of 304L stainless steel. The effect of three etching procedures on the substrate properties, such as corrosion resistance and adhesion, was investigated with unprecedented spatial resolution and spectroscopic details. Glancing angle X-ray diffraction showed modification in phase content but no neoformation after steel etching. X-ray photoelectron spectroscopy confirmed the presence of etchant species (6–7 at.%) on the extreme surface of the substrate. Transmission Electron Microscopy and Atomic Probe Tomography showed that the interface was less than a few nanometers wide. Polarization curves in a nitric acid solution at boiling temperature showed, for the first time, that the Ti+ and Zr+ etchings decreased the corrosion current density compared to the untreated original surface. Scratch-test measurements indicated better substrate/coating adhesion using HiPIMS metal ion etching. Electrochemical characterization revealed that Zr etching and thin coating improve the anti-corrosion properties of stainless steel in strong nitric acid conditions.
AB - A clean and defect-free substrate/coating interface is required to guarantee good adhesion of coatings under service conditions. For this purpose, an etching pre-treatment using High-Power Impulse Magnetron Sputtering (HiPIMS) was performed to modify the surface of 304L stainless steel. The effect of three etching procedures on the substrate properties, such as corrosion resistance and adhesion, was investigated with unprecedented spatial resolution and spectroscopic details. Glancing angle X-ray diffraction showed modification in phase content but no neoformation after steel etching. X-ray photoelectron spectroscopy confirmed the presence of etchant species (6–7 at.%) on the extreme surface of the substrate. Transmission Electron Microscopy and Atomic Probe Tomography showed that the interface was less than a few nanometers wide. Polarization curves in a nitric acid solution at boiling temperature showed, for the first time, that the Ti+ and Zr+ etchings decreased the corrosion current density compared to the untreated original surface. Scratch-test measurements indicated better substrate/coating adhesion using HiPIMS metal ion etching. Electrochemical characterization revealed that Zr etching and thin coating improve the anti-corrosion properties of stainless steel in strong nitric acid conditions.
KW - 304L stainless steel
KW - adhesion
KW - APT
KW - corrosion resistance
KW - etching
KW - GA-XRD
KW - HiPIMS
KW - TEM
UR - http://www.scopus.com/inward/record.url?scp=85131693643&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85131693643&partnerID=8YFLogxK
U2 - 10.3390/coatings12060727
DO - 10.3390/coatings12060727
M3 - Article
AN - SCOPUS:85131693643
SN - 2079-6412
VL - 12
JO - Coatings
JF - Coatings
IS - 6
M1 - 727
ER -