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Journal of Materials Engineering and Performance

Erschienen in:

01.06.2012

Residual Stresses in Microarc Oxidation Ceramic Coatings on Biocompatible AZ31 Magnesium Alloys

verfasst von: Yanhong Gu, Wenming Xiong, Chengyun Ning, Jing Zhang

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 6/2012

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Abstract

Ceramic coatings have been successfully prepared on biocompatible AZ31 magnesium alloy substrates using microarc oxidation (MAO) technique. Residual stresses attributed to the MgO constituent of the coatings at different oxidation voltages have been evaluated by x-ray diffraction using the sin² ψ method. It is found that tensile residual stresses were present in the coatings, and they decreased from 1418 to 545 MPa as the oxidation voltages increased from 250 to 350 V. Correlations between the residual stresses and microstructural morphology have been discussed. The residual stress characteristics are attributed to the microcracks and the new phase formation during the MAO process.

Vorheriger Artikel Metallurgical Analysis of Ball Bearing Seized During Operation

Nächster Artikel The Kinetics of Phase Transformations During Tempering in Laser Melted High Chromium Cast Steel

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Titel: Residual Stresses in Microarc Oxidation Ceramic Coatings on Biocompatible AZ31 Magnesium Alloys
verfasst von: Yanhong Gu
Wenming Xiong
Chengyun Ning
Jing Zhang
Publikationsdatum: 01.06.2012
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 6/2012
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-011-9980-6

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