Title: The investigation of coated layers on the surface of ferritic stainless steel by using atmospheric plasma spray method

Authors: Serkan Özel

Addresses: Faculty of Engineering and Architecture, Department of Mechanical Engineering, Bitlis Eren University, 13000, Bitlis, Turkey

Abstract: Ferritic stainless steel surfaces have been coated with Co+Mo+Cr+Si mixed powder by using the atmospheric plasma spray (APS) method with four different currents. The characterisation of coated layers is achieved with optical microscope (OM), scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) analysis. The adhesion strength of coated layers was calculated with ASTM C633 standard test method. In X-ray diffraction measurements, compounds similar to Co₂Mo₃, Co₇Mo₆, Co₃Mo₂Si, Cr₃Mo and CoMoSi were detected in coated layers. The maximum bonding strength and hardness have been detected in the specimen plasma-sprayed with current density 600 A.

Keywords: ferritic stainless steel; coating; cobalt alloy; bonding strength; microstructure.

DOI: 10.1504/IJMPT.2022.122892

International Journal of Materials and Product Technology, 2022 Vol.64 No.3/4, pp.325 - 337

Received: 27 Oct 2020
Accepted: 09 Sep 2021
Published online: 16 May 2022 *

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