Cold sprayability of mixed commercial purity Ti Plus Ti6Al4V metal powders

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  1. Available on January 30, 2018
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DOIResolve DOI: http://doi.org/10.1007/s11666-017-0528-7
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleJournal of Thermal Spray Technology
ISSN1059-9630
1544-1016
Subjectcold spray; deposition efficiency; mixed metal powders coating; porosity
AbstractIn the present work, metallic composite coatings of commercial purity Ti plus Ti6Al4V were produced by cold spraying to explore the effect of mixing on porosity and mechanical properties of the coatings. The coatings were deposited using N2 gas at 800 °C and 4 MPa pressure on 1020 steel substrate. Coating characteristics were studied by examining porosity percentages and Vickers’s hardness. The microstructure was examined using optical and electron microscopy techniques. It was observed that mixing metal powders can lead to improvements in cold sprayability, specifically decreases in the porosity of the ‘matrix’ powder. It is shown that a critical addition can significantly influence porosity, but above this critical level, there is a little change in porosity. Hardness differences between the two powders are considered to be the first-order influence, but differences in particle sizes and morphology may also be contributing factors.
Publication date
PublisherSpringer
LanguageEnglish
AffiliationAutomotive and Surface Transportation; National Research Council Canada
Peer reviewedYes
NPARC number23001440
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Record identifier53276dc7-145e-4573-992c-69907204c40e
Record created2017-02-08
Record modified2017-02-08
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