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Fatigue Corrosion of Amorphous Fe75-xCrxB15 Si10 Wires

Published online by Cambridge University Press:  26 February 2011

Anh Le ,
Lawrence T. Kabacoff  and
Nancy Y. Martinez
Anh Le
Affiliation:
Naval Surface Weapons Center, 10901 New Hampshire Avenue, Silver Spring, MD 20903-5000
Lawrence T. Kabacoff
Affiliation:
Naval Surface Weapons Center, 10901 New Hampshire Avenue, Silver Spring, MD 20903-5000
Nancy Y. Martinez
Affiliation:
Naval Surface Weapons Center, 10901 New Hampshire Avenue, Silver Spring, MD 20903-5000
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Abstract

Measurements have been made of the corrosion and fatigue properties of metallic glass wires of composition Fe75-xCrxB15Si10 (X = 5, 8, 11) in air, deionized water, 3.5 w/o NaCl and 1.0 N H2SO4. A clear inverse relationship was observed between the corrosion rate and the number of cycles to failure. Fatigue limits were observed for those cases where spontaneous passivation occurs (all compositions in air and deionized water, and 8 and 11 a/o Cr in chloride solution). It was found that the mechanism for the fatigue failure of specimens which spontaneously passivate differs from that of metallic glasses in an acidified chloride environment where active/passive behavior is observed. A model is proposed to explain this observation.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 80: Symposium G – Science and Technology of Rapidly Quenched Alloys , 1986 , 137
Copyright
Copyright © Materials Research Society 1987

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