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Evolution of Microstructure of Cold‐Spray Aluminum Coatings on Al 2 O 3 Substrates
Author(s) -
Dietrich Dagmar,
Wielage Bernhard,
Lampke Thomas,
Grund Thomas,
Kümmel Sabine
Publication year - 2012
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201100261
Subject(s) - materials science , misorientation , microstructure , electron backscatter diffraction , recrystallization (geology) , aluminium , gas dynamic cold spray , metallurgy , diffraction , thermal spraying , electron diffraction , grain boundary , coating , composite material , optics , paleontology , physics , biology
Electron backscatter diffraction is used to study the microstructural evolution of cold‐spray aluminum coatings on Al 2 O 3 substrates. The influence of powder purity and substrate heating on the kernel average misorientation and the distribution of low‐angle grain boundaries in as‐sprayed and annealed coatings are discussed in terms of dynamic recovery and dynamic recrystallization.