Universiti Teknologi Malaysia Institutional Repository

Microstructural characterisation of air plasma sprayed nanostructure ceramic coatings on Mg–1%Ca alloys (bonded by NiCoCrAlYTa alloy)

Daroonparvar, M. and Yajid, M. A. M. and Yusof, N. M. and Bakhsheshi-Rad, H. R. and Hamzah, E. (2016) Microstructural characterisation of air plasma sprayed nanostructure ceramic coatings on Mg–1%Ca alloys (bonded by NiCoCrAlYTa alloy). Ceramics International, 42 (1PartA). pp. 357-371. ISSN 0272-8842

Full text not available from this repository.

Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

Nanostructured composite ceramic coatings consisting of Al2O3–13%TiO2 and Al2O3–13%TiO2/TiO2 on NiCoCrAlYTa-coated Mg alloys were sprayed using the atmospheric plasma spraying method. The composition and microstructure of the coated samples were investigated by XRD and FESEM equipped with EDS. Corrosion and wear behaviours of the coated samples were also evaluated. The results showed that Al2O3–13%TiO2/TiO2 coating is able to reduce the anodic dissolution of the Mg alloy in chloride solutions compared to other samples. The surface of the Al2O3–13%TiO2/TiO2 coating with the lowest wear rate exhibited a typical mild wear mode with narrow wear tracks along with very few small transferred particles. This observation was mainly related to the dense structure of the TiO2 coating, which could reduce severe spalling within the splats during the wear test.

Item Type:Article
Uncontrolled Keywords:Aluminum, Aluminum coatings, Calcium alloys, Ceramic coatings, Ceramic materials, Composite coatings, Corrosion, Plasma jets, Sprayed coatings, Substrates, Surfaces, Wear of materials, Air plasma sprayed, Anodic dissolution, Atmospheric plasma spraying, Chloride solutions, Corrosion and wears, Microstructural characterisation, Nanostructured composites, TiO, Plasma spraying
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:74455
Deposited By: Fazli Masari
Deposited On:29 Nov 2017 23:58
Last Modified:29 Nov 2017 23:58

Repository Staff Only: item control page