A High-Performance Corrosion-Resistant Iron-Based Amorphous Metal - The Effects of Composition, Structure and Environment on Corrosion Resistance

Conference · Sun Jul 01 00:00:00 EDT 2007

OSTI ID:21062411

Farmer, J; Haslam, J; Day, D; Lian, T; Saw, C; Hailey, P; Choi, J S; Rebak, R ^[1]; Yang, N ^[2]; Bayles, R ^[3]; Aprigliano, L ^[4]; Payer, J ^[5]; Perepezko, J; Hildal, K ^[6]; Lavernia, E; Ajdelsztajn, L ^[7]; Branagan, D ^[8]; Beardsley, B ^[9]

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1. Lawrence Livermore National Laboratory, Livermore, CA, 94550 (United States)
2. Sandia National Laboratory, Livermore, CA, 94550 (United States)
3. Naval Research Laboratory, Washington, DC, 20375 (United States)
4. Consultant, Berlin, MD, 21811 (United States)
5. Case Western Reserve University, Cleveland, OH, 44106 (United States)
6. University of Wisconsin, Madison, WI, 53706 (United States)
7. University of California, Davis, CA, 95616 (United States)
8. The NanoSteel Company, Idaho Falls, ID, 83402 (United States)
9. Caterpillar, Peoria, IL, 61656 (United States)

The passive film stability of several Fe-based amorphous metal formulations have been found to be comparable to that of high-performance Ni-based alloys, and superior to that of stainless steels, based on electrochemical measurements of the passive film breakdown potential and general corrosion rates. Chromium (Cr), molybdenum (Mo) and tungsten (W) provide corrosion resistance; boron (B) enables glass formation; and rare earths such as yttrium (Y) lower critical cooling rate (CCR). The high boron content of this particular amorphous metal also makes it an effective neutron absorber, and suitable for criticality control applications, as discussed in companion publications. Corrosion data for SAM2X5 (Fe{sub 49.7}Cr{sub 17.7}Mn{sub 1.9}Mo{sub 7.4}W{sub 1.6}B{sub 15.2}C{sub 3.8}Si{sub 2.4}) is discussed here. (authors)

• Research Organization: Materials Research Society, 506 Keystone Drive, Warrendale, PA, 15086-7573 (United States)
• OSTI ID: 21062411
• Resource Relation: Conference: Symposium on Scientific Basis for Nuclear Waste Management, Boston - Massachusetts (United States), 27 Nov - 1 Dec 2006; Other Information: Country of input: France; 24 refs; Related Information: In: Proceedings of the symposium on Scientific Basis for Nuclear Waste Management XXX, by Dunn, Darrell [ed. Southwest Research Inst., San Antonio, Texas (United States)]; Poinssot, Christophe [ed. CEA-Saclay, 91191 Gif-sur-Yvette cedex (France)]; Begg, Bruce [ed. Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW (Australia)], v. 985, 663 pages.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORON ALLOYS
CARBON ADDITIONS
CHROMIUM ALLOYS
CORROSION
CORROSION RESISTANCE
CRITICALITY
ELECTROCHEMISTRY
FILMS
GLASS
IRON ALLOYS
MANGANESE ALLOYS
MOLYBDENUM ALLOYS
NEUTRON ABSORBERS
PASSIVITY
PERFORMANCE
SILICON ALLOYS
STABILITY
TUNGSTEN ALLOYS