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Devitrification Effects on the Structure and Corrosion of an Fe-based Bulk Metallic Glass

Miller, Jason
http://rave.ohiolink.edu/etdc/view?acc_num=case1252371978

Abstract Details

2010, Master of Sciences (Engineering), Case Western Reserve University, Materials Science and Engineering.
Fe-based metallic glasses have high corrosion resistance. The effect of heat treatment on the corrosion and structure of SAM1651 was studied. The fully amorphous material was heat treated at 600°C, 700°C, and 800°C, i.e. temperatures above and below the reported recrystallization temperature (653°C). Structural changes were examined by X-Ray diffraction (XRD) and transmission electron microscopy (TEM) and showed partial devitrification by the formation of (Cr,Fe)23C6 and (Cr,Fe)7C3 nanoparticles. The corrosion behavior of the devitrified SAM1651 in 1M and 6M HCl at room temperature was examined using weight loss, cyclic potentiodynamic polarization, and constant potential tests. These tests revealed some degradation of corrosion resistance after heat treatment manifested in the formation of a black corrosion affected layer. The structure of this layer was analyzed using scanning electron microscopy (SEM) and the chemistry was analyzed using X-ray photoelectron spectroscopy (XPS). TEM images after immersion in 6M HCl also were taken.
Joe Payer, PhD (Advisor)
Gary Michal, PhD (Committee Member)
John Lewandoski, PhD (Committee Member)
Materials Science
Devitri; CORROSION; SAM1651; Devitri ed; Amorphous; fully amorphous; Corrosion Resistance

Recommended Citations

Citations

  • Miller, J. (2010). Devitrification Effects on the Structure and Corrosion of an Fe-based Bulk Metallic Glass [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1252371978

    APA Style (7th edition)

  • Miller, Jason. Devitrification Effects on the Structure and Corrosion of an Fe-based Bulk Metallic Glass. 2010. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1252371978.

    MLA Style (8th edition)

  • Miller, Jason. "Devitrification Effects on the Structure and Corrosion of an Fe-based Bulk Metallic Glass." Master's thesis, Case Western Reserve University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1252371978

    Chicago Manual of Style (17th edition)

case1252371978
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© 2009, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.