Freestanding FeCrAl-Y₂O₃ Amorphous/Crystalline Composite Coating Fabricated by Electron-Beam Physical Vapor Deposition

Abstract:

Freestanding FeCrAl-Y₂O₃ amorphous/crystalline composite coating with a thickness of about 200μm has been produced from electron-beam physical vapor deposition of FeCrAl and yttria materials with a substrate temperature of 500 oC around. The microstructure was composed of columnar grains near the substrate side and an amorphous top layer. Local crystallization occurred during room temperature preservation. It is inferred that the crystallization activation energy of the material is very low.

• Periodical: Materials Science Forum (Volume 788)
• Pages: 652-656
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.788.652
• Online since: April 2014
• Authors: Xiu Lin*, Guang Ping Song, Hua Song Gou, Yi Jie Zhao, Yang Chen, Yue Sun, Shu Yuan Zhao, Xiao Dong He
• Keywords: AFM, Amorphous, Coating, Composite, Crystallization, PVD

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