Influence of Micro-Crystallization by High Energy Density Plasma on High Temperature Oxidation of Fe<sub>3</sub>Al

Wang Yonggang; He Yedong; Zhu Rizhang; Yang Size

doi:10.13374/j.issn1001-053x.1996.s2.002

Volume 18 Issue S2

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Wang Yonggang, He Yedong, Zhu Rizhang, Yang Size. Influence of Micro-Crystallization by High Energy Density Plasma on High Temperature Oxidation of Fe3Al[J]. Chinese Journal of Engineering, 1996, 18(S2): 6-10,15. doi: 10.13374/j.issn1001-053x.1996.s2.002

Citation:

Wang Yonggang, He Yedong, Zhu Rizhang, Yang Size. Influence of Micro-Crystallization by High Energy Density Plasma on High Temperature Oxidation of Fe₃Al[J]. Chinese Journal of Engineering, 1996, 18(S2): 6-10,15. doi: 10.13374/j.issn1001-053x.1996.s2.002

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Influence of Micro-Crystallization by High Energy Density Plasma on High Temperature Oxidation of Fe₃Al

doi: 10.13374/j.issn1001-053x.1996.s2.002

1. Department of Surface and Corrosion Engineering, USTB, Beijing 100083, PRC;
2. Institute of Physics, Academia Sinica

Received Date: 1996-05-15
Available Online: 2021-11-13

Abstract

Abstract

High energy density plasma technique(HEDP) was applied to surface treatment of Fe₃Al. A micro-crystalline layer with grain sizes between 10 and 100nm was obtained. Isothermal oxidation at 1000℃ in air for cast Fe₃Al before and after micro-crystallizing was studied. The results showed that for the micro-crystalline Fe₃Al,(1) a micro-crystalline oxide scale formed during oxidation;(2) the plasticity and adhesion of oxide scale was remarkably improved;(3) the oxidation rate was decreased;(4) the oxidation kinetics obeyed the forth power equation law.
- plasma,
- micro-crystallization,
- high temperature oxidation,
- corrosion