Cyclic oxidation behaviour of electrodeposited Ni3Al–CeO2 base coatings at 1050 °C
Cyclic oxidation behaviour of electrodeposited Ni3Al–CeO2 base coatings at 1050 °C
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DOI：
10.1016/j.corsci.2007.05.002
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发表时间：
2007-09
影响因子：
8.3
通讯作者：
Haifeng Liu;Weixing Chen
中科院分区：
文献类型：
--
作者：
Haifeng Liu;Weixing Chen
This paper presents the cyclic oxidation behaviour of electrodeposited pure, nano CeO2(9–15nm)- and micron CeO2(5μm)-modified Ni3Al coatings on Fe–Ni–Cr substrate at 1050°C for periods up to 500h. The pure Ni3Al coating had a marginal resistance to cyclic oxidation at 1050°C, while the CeO2-dispersed Ni3Al coatings showed much better cyclic oxidation resistance. This difference was attributed to many beneficial effects of CeO2including changing the growth mechanism of α-Al2O3scale, reducing the growth rate of the scale, improving mechanical properties of the scale, and reducing void formation at the scale/coating interface and at the scale-grain boundaries.
