CHARACTERIZATION OF ISOTHERMAL OXIDATION OF AIR PLASMA SPRAYEDNiCrAlYCOATINGS

Lubin Chen, Chuanzhong Chen (), Liang Zhang, Yongsheng Tian and Ting-Quan Lei
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Lubin Chen: School of Materials Science and Engineering, Shandong University, Ji'nan 250061, P. R. China
Chuanzhong Chen: School of Materials Science and Engineering, Shandong University, Ji'nan 250061, P. R. China
Liang Zhang: School of Materials Science and Engineering, Shandong University, Ji'nan 250061, P. R. China
Yongsheng Tian: School of Materials Science and Engineering, Shandong University, Ji'nan 250061, P. R. China
Ting-Quan Lei: School of Materials Science and Engineering, Shandong University, Ji'nan 250061, P. R. China;

Surface Review and Letters (SRL), 2006, vol. 13, issue 05, 551-555

Abstract: The oxidation behavior of the coatings at 1100°C in air was investigated using electron probe microanalyzer, scanning electron microscopy, and X-ray diffractometer. Compacted oxide scales, mainly consisting of oxides ofAlandY, were formed on the coating surface, and thus the oxidation resistance of the coatings was enhanced. Cone oxides are formed on the scale surface and normal to the coating surface due to the characterization of preferential growth.

Keywords: Air plasma spray; NiCrAlYcoating; oxidation resistance; oxide scale (search for similar items in EconPapers)
Date: 2006
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DOI: 10.1142/S0218625X06008487

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