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has been cited by the following article:

• TITLE: Microstructure, Adhesion and Wear of Plasma Sprayed AlSi-SiC Composite Coatings

  AUTHORS: Satish Tailor, V. K. Sharma, R. M. Mohanty, P. R. Soni

  KEYWORDS: AlSi-SiC; Attrition Milling; Plasma Spray Coating; Adhesion Strength; Wear Resistance

  JOURNAL NAME: Journal of Surface Engineered Materials and Advanced Technology, Vol.2 No.3A, July 27, 2012

  ABSTRACT: Al-12.5 wt% Si alloy powder with 15 wt% SiCp was mechanically alloyed (MA) using attrition mill in purified nitrogen atmosphere. The MA processed powder was found to have nano grain size and uniform distribution of SiCp in the AlSi matrix. This MA processed powder was used for atmospheric plasma spraying (APS) for varying distances and currents densities. The coatings obtained were studied by image analyzer, SEM and XRD. Microhardness and wear rate of the coatings were evaluated using Vickers indenter and pin on disk type tribometer, respectively. Adhesion strength of the coatings was measured by interfacial indentation test. The results showed that these coatings have uniform distribution of reinforced SiC particles in the nano crystalline matrix, low porosity (1% - 2%), low wear rates and improved adhe-sion strength. It was also observed that by increasing current density of APS, the adhesive strength increased.