@article{5daad706c47f459eb8628260aa43ee70,
title = "Effect of polyethylene glycol modification on the corrosion behavior of hydroxyapatite-coated AZ31 Mg alloy under tensile deformation",
abstract = "The effect of polyethylene glycol (PEG) modification on the corrosion behavior under tensile deformation of hydroxyapatite-coated Mg-3mass% Al-1mass% Zn (HAp-AZ31) was examined in Hanks{\textquoteright} solution. Slow strain rate tensile (SSRT) and rapid straining electrode (RSE) tests and electrochemical impedance measurements were performed. In SSRT tests, PEG-modified HAp-AZ31 showed 1.4 times longer elongation to failure than HAp-AZ31. In RSE tests, the PEG modification showed little effect on cracking of HAp coating, while it reduced corrosion propagation from the cracks by half. The improvement in tensile elongation of HAp-AZ31 with PEG is attributed to the inhibition of corrosion propagation from coating cracks.",
keywords = "Calcium phosphate, Composite coating, Magnesium alloy, Polymer, Rapid strain electrode test, Slow strain rate tensile test, Stress corrosion cracking",
author = "Sachiko Hiromoto and Kotaro Doi",
note = "Funding Information: Mr. V. Delaunay, Mr. P.-E. Smanio-Besombes, and Ms. O. Zouaki, trainees from ESRIM, University of Burgundy, France, are acknowledged for the SSRT and RSE tests with electrochemical measurements. We thank for Ms. E. Ikeda for the EIS measurements and Dr. A. Chiba for the cross-section observation of the specimens. This work was partially supported by JSPS KAKENHI (Grant-in-Aid for Scientific Research (B)) ( 19H02449 and H1604511 ) and by a grant from the Light Metal Educational Foundation. Funding Information: Mr. V. Delaunay, Mr. P.-E. Smanio-Besombes, and Ms. O. Zouaki, trainees from ESRIM, University of Burgundy, France, are acknowledged for the SSRT and RSE tests with electrochemical measurements. We thank for Ms. E. Ikeda for the EIS measurements and Dr. A. Chiba for the cross-section observation of the specimens. This work was partially supported by JSPS KAKENHI (Grant-in-Aid for Scientific Research (B)) (19H02449 and H1604511) and by a grant from the Light Metal Educational Foundation. Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",
year = "2023",
month = mar,
doi = "10.1016/j.corsci.2022.110931",
language = "English",
volume = "212",
journal = "Corrosion Science",
issn = "0010-938X",
publisher = "Elsevier Limited",
}