Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 440, Issue 1-2, Pages 225-228Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2006.09.003
Keywords
amorphous metallic coating; high velocity air fuel; corrosion resistance
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Ni53Nb20Ti10Zr8Co6Cu3 (at.%) amorphous alloy with high glass forming ability (GFA), capable of forming a wholly amorphous rod of similar to 3 mm diameter by casting, was adopted to deposit amorphous metallic coatings by high velocity air fuel (HVAF) thermal spraying. The effects of powder feed rate and spraying distance on amorphous phase content and porosity of the coatings were investigated. It was indicated that an appropriate powder feed rate was desirable to produce a coating with high amorphous fraction, whereas a larger spraying distance led to a more dense coating. The corrosion resistance of the sprayed coatings was also examined in I M HCl aqueous solution. (c) 2006 Elsevier B.V. All rights reserved.
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