Integrated characterization of cold sprayed aluminum coatings

Cold spray (CS) technology is a recent development for producing dense, oxide-free metallic and cermet coatings with attributes not achievable by established atmospheric thermal spray (TS) techniques. Little or no thermal component (i.e. high temperature) is introduced in the CS process; deposit for...

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Bibliographic Details
Published inActa materialia Vol. 55; no. 3; pp. 857 - 866
Main Authors Choi, W.B., Li, L., Luzin, V., Neiser, R., Gnäupel-Herold, T., Prask, H.J., Sampath, S., Gouldstone, A.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.02.2007
Elsevier Science
Subjects
Applied sciences
Brittle coatings
Cohesion
Ductility
Exact sciences and technology
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Production techniques
Surface treatment
Cohesion
Ductility
Brittle coatings
Hot spraying
Mechanical properties
Coatings
Spray coating
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Summary:Cold spray (CS) technology is a recent development for producing dense, oxide-free metallic and cermet coatings with attributes not achievable by established atmospheric thermal spray (TS) techniques. Little or no thermal component (i.e. high temperature) is introduced in the CS process; deposit formation relies mainly on dynamic compaction as particles impact the substrate. In this paper, we discuss and evaluate the relationships between the microstructure, properties and residual stresses in CS Al coatings, combining indentation, dilatometry, resistivity measurements and neutron diffraction techniques. In addition, we provide mechanistic arguments for the evolution of such characteristics with post-deposit annealing.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1359-6454
1873-2453
DOI:10.1016/j.actamat.2006.09.006