Polarization and resistivity measurements of post-crystallization changes in amorphous Fe-B-Si alloys

Journal Article · Wed Sep 01 00:00:00 EDT 1993 · Corrosion (Houston); (United States)

DOI:https://doi.org/10.5006/1.3316103· OSTI ID:5729724

Chattoraj, I; Bhattamishra, A K ^[1]; Mitra, A ^[2]

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1. National Metallurgical Lab., Jamshedpur (India). CRP Div.
2. National Metallurgical Lab., Jamshedpur (India). MTP Div.

The effects of grain growth and compositional changes on the electrochemical behavior and the resistivity of amorphous iron-boron-silicon (Fe[sub 77.5]B[sub 15]Si[sub 7.5]) alloys after crystallization were studied. Deterioration of the protective passive film was observed, along with increased annealing. Potentiodynamic polarization provided excellent information about microstructural and chemical changes. It was concluded that electrochemical measurements could be used in conjunction with resistivity measurements in direct studies of grain growth and chemical changes occurring in different phases of the devitrified alloy.

• OSTI ID: 5729724
• Journal Information: Corrosion (Houston); (United States), Vol. 49:9; ISSN 0010-9312
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORON ALLOYS
CORROSION RESISTANCE
CRYSTALLIZATION
IRON ALLOYS
SILICON ALLOYS
AMORPHOUS STATE
GRAIN GROWTH
POLARIZATION
TERNARY ALLOY SYSTEMS
ALLOY SYSTEMS
ALLOYS
PHASE TRANSFORMATIONS
360102* - Metals & Alloys- Structure & Phase Studies
360105 - Metals & Alloys- Corrosion & Erosion