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Published August 2008 | public
Journal Article

Oxidation behaviour of metallic glass foams


In this study, the effects of porosity on the oxidation behaviour of bulk-metallic glasses were investigated. Porous Pd- and Fe-based bulk-metallic glass (BMG) foams and Metglas ribbons were studied. Oxidizing experiments were conducted at 70°C, and around 80°C below glass-transition temperatures, (T_gS). Scanning-electron microscopy/energy-dispersive spectroscopy (SEM/EDS) studies revealed little evidence of oxidation at 70°C. Specimens exhibited greater oxidation at T_g - 80°C. Oxides were copper-based for Pd-based foams, Fe-, Cr-, and Mo-based for Fe-based foams, and Co-based with borosilicates likely for the Metglas. Pd-based foams demonstrated the best oxidation resistance, followed by Metglas ribbons, followed by Fe-based foams.

Additional Information

© 2008 Elsevier Ltd. Received 13 July 2007. Accepted 25 April 2008. Available online 15 June 2008. The author gratefully acknowledges the financial support from the National Science Foundation (NSF), the Integrative Graduate Education and Research Training (IGERT) Program, under DGE- 9987548, to the University of Tennessee (UT), Knoxville, with Drs. C.J. Van Hartesveldt, J. Giordan, D. Dutta, L. Clesceri, W. Jennings, and L. Goldberg as contract monitors, respectively. Partial support by the Office of Naval Research under Award No. N00014-07-1- 1115 is also greatly acknowledged. Dr. J.E. Spruiell is acknowledged for his help and guidance with the X-ray measurements. The author appreciates the suggestions and assistance of Dr. D.C. Joy and Mr. G. Jones with the SEM/EDS studies. The author is grateful for the assistance of Mr. F. Holiway, R. Stookesbury, D. Fielden, and the University of Tennessee machine shop. Additional aid and advice from Dr. G. Fan, Dr. R.D. Conner, Dr. C. Lundin, Ms. B. Green, Ms. D. Qiao, Mr. A. Chuang, Mr. M. Benson, Ms. S. Maples, Ms. C. Lawrence, and Ms. R. Cook is also acknowledged.

Additional details

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October 17, 2023