Enhanced Corrosion Resistance of Iron-Based Amorphous Alloys

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Iron-based amorphous alloys possess enhanced hardness and are highly resistant to corrosion, which make them desirable for wear applications in corrosive environments. It was of interest to examine the behavior of amorphous alloys during anodic polarization in concentrated salt solutions and in the salt-fog testing. Results from the testing of one amorphous material (SAM2X5) both in ribbon form and as an applied coating are reported here. Cyclic polarization tests were performed on SAM2X5 ribbon as well as on other nuclear engineering materials. SAM2X5 showed the highest resistance to localized corrosion in 5 M CaCl{sub 2} solution at 105 C. Salt ... continued below

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Rebak, R B; Day, S D; Lian, T; Aprigliano, L F; Hailey, P D & Farmer, J C February 18, 2007.

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Iron-based amorphous alloys possess enhanced hardness and are highly resistant to corrosion, which make them desirable for wear applications in corrosive environments. It was of interest to examine the behavior of amorphous alloys during anodic polarization in concentrated salt solutions and in the salt-fog testing. Results from the testing of one amorphous material (SAM2X5) both in ribbon form and as an applied coating are reported here. Cyclic polarization tests were performed on SAM2X5 ribbon as well as on other nuclear engineering materials. SAM2X5 showed the highest resistance to localized corrosion in 5 M CaCl{sub 2} solution at 105 C. Salt fog tests of 316L SS and Alloy 22 coupons coated with amorphous SAM2X5 powder showed resistance to rusting. Partial devitrification may be responsible for isolated pinpoint rust spots in some coatings.

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PDF-file: 11 pages; size: 0.5 Mbytes

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  • Presented at: 2007 ASME Pressure Vessels and Piping Division Conference, San Antonio, TX, United States, Jul 22 - Jul 26, 2007

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  • Report No.: UCRL-PROC-229951
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 913546
  • Archival Resource Key: ark:/67531/metadc890718

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  • February 18, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 23, 2016, 6:47 p.m.

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Rebak, R B; Day, S D; Lian, T; Aprigliano, L F; Hailey, P D & Farmer, J C. Enhanced Corrosion Resistance of Iron-Based Amorphous Alloys, article, February 18, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc890718/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.