Discontinuous oxidation and erosion-oxidation of a CeO2-dispersion-strengthened chromium coating

Discontinuous oxidation and erosion-oxidation of a CeO2-dispersion-strengthened chromium coating
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CeO2 弥散强化铬涂层的不连续氧化和侵蚀氧化

DOI:
10.1016/j.corsci.2010.02.009
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发表时间:
2010-05
期刊:
影响因子:
8.3
通讯作者:
Xu C
Xu C
中科院分区:
材料科学1区
文献类型:
--
作者:
Peng X;Wang F;Dong Z;Yan J;Xu C

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采用两步法在碳钢表面制备了CeO 2弥散强化铬镀层:先电沉积Ni-CeO 2纳米复合镀层,然后采用传统的固体渗铬方法进行渗铬。与在碳钢上制备的无CeO 2涂层相比,在900°C下,在5%O2 + N2和5%O2 + 1000 ppm SO2+N2中,CeO 2分散的铬涂层提供了显著改善的抗不连续氧化性,以及在实验室规模的流化床燃烧器(FBC)中的抗侵蚀-氧化性,主要是因为开发了致密的,皱纹较少且粘附性更强的氧化铬鳞。
A CeO2-dispersion-strengthened chromium coating was developed on a carbon steel using a two-step process: prior electrodeposition of a Ni-CeO2nanocomposite film and subsequent chromization using a conventional pack cementation method. Compared to the CeO2-free coatings prepared on the carbon steel without and with pre-electrodeposition of a pure Ni film, the CeO2dispersed chromium coating offered profoundly improved discontinuous oxidation resistance at 900°C in 5% O2+N2and in 5% O2+1000ppm SO2+N2, and erosion-oxidation resistance in a laboratory-scale fluidized-bed combustor (FBC), mainly because of the development of a denser, less wrinkled and more adherent chromia scale.
DOI: 10.1007/bf00656841
发表时间: 1983-12
影响因子: 2.2
作者:
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