TEM characterization of corrosion products formed on a SS-15ZR alloy.

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The corrosion products formed on a stainless steel-15Zr (SS-15Zr) alloy have been characterized by transmission electron microscopy (TEM) and energy dispersive x-ray spectroscopy (EDS). Examination of alloy particles that were immersed in 90 C deionized water for two years revealed that different corrosion products were formed on the stainless steel and intermetallic phases. Two corrosion products were identified on an austenite particle: trevorite (NiFe{sub 2}O{sub 4}) in the layer close to the metal and maghemite (Fe{sub 2}O{sub 3}) in the outer layer. The corrosion layer formed on the intermetallic was uniform, adherent, and amorphous. The EDS analysis indicated that the ... continued below

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9 p.

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Luo, J. S. & Abraham, D. P. January 4, 2000.

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Description

The corrosion products formed on a stainless steel-15Zr (SS-15Zr) alloy have been characterized by transmission electron microscopy (TEM) and energy dispersive x-ray spectroscopy (EDS). Examination of alloy particles that were immersed in 90 C deionized water for two years revealed that different corrosion products were formed on the stainless steel and intermetallic phases. Two corrosion products were identified on an austenite particle: trevorite (NiFe{sub 2}O{sub 4}) in the layer close to the metal and maghemite (Fe{sub 2}O{sub 3}) in the outer layer. The corrosion layer formed on the intermetallic was uniform, adherent, and amorphous. The EDS analysis indicated that the layer was enriched in zirconium when compared with the intermetallic composition. High-resolution TEM images of the intermetallic-corrosion layer interface show an interlocking metal-oxide interface which may explain the relatively strong adherence of the corrosion layer to the intermetallic surface. These results will be used to evaluate corrosion mechanisms and predict long-term corrosion behavior of the alloy waste form.

Physical Description

9 p.

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INIS; OSTI as DE00750473

Medium: P; Size: 9 pages

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  • MRS '99 Fall Meeting, Boston, MA (US), 11/29/1999--12/03/1999

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  • Report No.: ANL/CMT/CP-99410
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 750473
  • Archival Resource Key: ark:/67531/metadc704022

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 4, 2000

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 11, 2017, 8:10 p.m.

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Luo, J. S. & Abraham, D. P. TEM characterization of corrosion products formed on a SS-15ZR alloy., article, January 4, 2000; Illinois. (digital.library.unt.edu/ark:/67531/metadc704022/: accessed December 9, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.