Encyclopedia of Materials: Metals and Alloys

0557505 - FZÚ 2023 RIV NL eng M - Část monografie knihy
Samal, Sneha Manjaree
Oxidation of metal.
Encyclopedia of Materials: Metals and Alloys. Vol. 1. Amsterdam: Elsevier, 2022 - (Rams, J.; Whittaker, M.), s. 442-453. ISBN 978-0-12-819733-2
Grant CEP: GA MŠMT(CZ) EF16_019/0000760
Grant ostatní: OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institucionální podpora: RVO:68378271
Klíčová slova: BCC * copper * crystal structure * defect * FCC * grain boundary * grain size * HCP * high temperature * iron * multi-layer oxidation * pure metal * single-layer zinc
Obor OECD: Coating and films

The study has investigated the oxidation behavior of metals. Here pure metals of three different crystal structures, BCC, FCC, and HCP have been considered for the contribution towards the role of oxidation and its rate. The influence of grain shape, size, and grain boundary diffusion on high-temperature oxidation of pure metals such as Fe, Cu, and Zn was investigated in this article. The oxidized scale was developed on the outer layer of the metal surface depending on the geometrical parameter of the metal-scale system as well as diffusion direction through boundary layers towards the base of the material. The creation of the inner layer and the morphological structure developed from the internal stress generated during the growth of the oxide scale and by diffusion of metal/air system. The oxidation rate depends on the cation and anion mobile transport of the metal in the inward and outward direction of the diffusion layer. The oxidation rate was decreased with the decreasing grain size of the pure metal, whereas Zn metal deviated from this principle. A scheme is established on the mechanism of the oxidation towards single and multi layer formation of an oxide scale.
Trvalý link: http://hdl.handle.net/11104/0331468