A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Characteristics of sintered HA coating deposited by chemical method on AISI 316L substrate
Graphical abstract Potentiodynamic polarization curves of various conditions tested in Ringer’s solution at 37±1°C. Display Omitted
Highlights Sintering resulted in a well-dispersed HA-coating. Sintering of HA resulted in a slightly higher surface roughness. Sintering improved the coating/substrate adhesion. Sintering of HA-coated samples possessed higher corrosion resistance.
Abstract Hydroxyapatite (HA) coating is widely applied for biomaterials because of its chemical similarity to the mineral component of bones. The bioactive nature of HA coating enhances the formation of strong chemical bonds with surrounding bones. The present work is aimed at investigating the effects of sintering at 500, 600 and 700°C on the crystallization and adhesive properties of HA coating, deposited by chemical method on AISI 316L stainless steel substrate. The properties of HA coating were studied by X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM) and standard tensile adhesion test. In addition, the corrosion behavior after heat treatments was evaluated in Ringer’s solution at 37°C as a simulated body fluid. The results refer to a good enhancement of the crystallization of the HA coating sintered at 700°C. The adhesive strength of as-coated (AC) material increased from 8.3MPa to 12.2, 16.8 and 19.8MPa after sintering at 500, 600 and 700°C, respectively. The corrosion rate of the as-coated material reduced sharply from 0.405 to 0.094μAcm−2 after sintering at 700°C.
Characteristics of sintered HA coating deposited by chemical method on AISI 316L substrate
Graphical abstract Potentiodynamic polarization curves of various conditions tested in Ringer’s solution at 37±1°C. Display Omitted
Highlights Sintering resulted in a well-dispersed HA-coating. Sintering of HA resulted in a slightly higher surface roughness. Sintering improved the coating/substrate adhesion. Sintering of HA-coated samples possessed higher corrosion resistance.
Abstract Hydroxyapatite (HA) coating is widely applied for biomaterials because of its chemical similarity to the mineral component of bones. The bioactive nature of HA coating enhances the formation of strong chemical bonds with surrounding bones. The present work is aimed at investigating the effects of sintering at 500, 600 and 700°C on the crystallization and adhesive properties of HA coating, deposited by chemical method on AISI 316L stainless steel substrate. The properties of HA coating were studied by X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM) and standard tensile adhesion test. In addition, the corrosion behavior after heat treatments was evaluated in Ringer’s solution at 37°C as a simulated body fluid. The results refer to a good enhancement of the crystallization of the HA coating sintered at 700°C. The adhesive strength of as-coated (AC) material increased from 8.3MPa to 12.2, 16.8 and 19.8MPa after sintering at 500, 600 and 700°C, respectively. The corrosion rate of the as-coated material reduced sharply from 0.405 to 0.094μAcm−2 after sintering at 700°C.
Characteristics of sintered HA coating deposited by chemical method on AISI 316L substrate
Ahmed, A. (author) / Mhaede, M. (author) / Wollmann, M. (author) / Wagner, L. (author)
2015-03-21
9 pages
Article (Journal)
Electronic Resource
English
Wear resistance of laser cladded Stellite 31 coating on AISI 316L steel
| British Library Online Contents | 2018
| British Library Online Contents | 2018
Passivation of welded AISI 316L stainless steel
| British Library Online Contents | 2008
| British Library Online Contents | 2009
Young's Modulus Profile in Kolsterized AISI 316L Steel
| British Library Online Contents | 2013