Preparation and Isothermal Oxidation Behavior of Zr-Doped, Pt-Modified Aluminide Coating Prepared by a Hybrid Process
作者： Qixiang Fan , Haojun Yu , Tie-Gang Wang , Zhenghuan Wu , Yanmei Liu
关键词: Materials science 、 Electroplating 、 Chemical engineering 、 Coating 、 Aluminide 、 Oxide 、 Microstructure 、 Layer (electronics) 、 Zirconium 、 Isothermal process
摘要: To take advantage of the synergistic effects Pt and Zr, a kind Zr-doped, Pt-modified aluminide coating has been prepared by hybrid process, first electroplating layer then co-depositing Zr Al elements an above-the-pack process. The microstructure isothermal oxidation behavior studied, using as reference. Results showed that was primarily composed β-(Ni,Pt)Al phase, with small amounts PtAl2- Zr-rich phases dispersed in it. addition diminished voids on surface since could hinder growth β-NiAl grains. It also helped to increase spalling resistance oxide scale reduce rate, which made possess better than reference at temperature 1100 °C.
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