TY - JOUR
T1 - Effect of carbon interface on adhesion and anti-corrosion properties of hydroxyapatite coating on AZ31 magnesium alloy
AU - Liu, Xianglei
AU - Feng, Tao
AU - Chen, Guangmeng
AU - Wen, Shifeng
AU - Ding, Jiahui
AU - Lin, Hongjiao
AU - Yue, Zhufeng
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/8/1
Y1 - 2022/8/1
N2 - In order to improve the adhesion and anti-corrosion properties of hydroxyapatite coating (HA) on the surface of implant magnesium alloy, carbon interface (C) was successfully introduced by resin carbonization method. The adhesion and anti-corrosion properties of the coatings were characterized. After introducing PyC interface, the adhesion of the coating increased by 173%. The corrosion current in the polarization curve decreased by three orders of magnitude, meaning that the corrosion resistance was improved significantly. The microcracks on carbon interface layer surface provided enough bonding strength between the hydroxyapatite coating and carbon coating, due to forming the mortise and tenon embedding structure. The introduction of PyC interface layer improved the overall density of the coating and effectively isolated the contact between the corrosion solution and the magnesium alloy matrix, resulting in that the corrosion resistance was significantly improved.
AB - In order to improve the adhesion and anti-corrosion properties of hydroxyapatite coating (HA) on the surface of implant magnesium alloy, carbon interface (C) was successfully introduced by resin carbonization method. The adhesion and anti-corrosion properties of the coatings were characterized. After introducing PyC interface, the adhesion of the coating increased by 173%. The corrosion current in the polarization curve decreased by three orders of magnitude, meaning that the corrosion resistance was improved significantly. The microcracks on carbon interface layer surface provided enough bonding strength between the hydroxyapatite coating and carbon coating, due to forming the mortise and tenon embedding structure. The introduction of PyC interface layer improved the overall density of the coating and effectively isolated the contact between the corrosion solution and the magnesium alloy matrix, resulting in that the corrosion resistance was significantly improved.
KW - Adhesion
KW - AZ31 magnesium alloy
KW - Corrosion resistance
KW - HA/C composite coating
UR - http://www.scopus.com/inward/record.url?scp=85132429778&partnerID=8YFLogxK
U2 - 10.1016/j.matchemphys.2022.126351
DO - 10.1016/j.matchemphys.2022.126351
M3 - 文章
AN - SCOPUS:85132429778
SN - 0254-0584
VL - 287
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
M1 - 126351
ER -