Role of stacking fault energy (SFE) on the high strain rate deformation of cold sprayed Cu and Cu–Al alloy coatings

Cold spray deposition involves a unique combination of high strain rate and moderate to high strain deformation of powder particles that contrasts it from conventional severe plastic deformation techniques. In the present work, a systematic study of the microstructure and micromechanical properties...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2021-05, Vol.814, p.141242, Article 141242
Main Authors: Chavan, Naveen Manhar, Phani, P. Sudharshan, Ramakrishna, M., Venkatesh, L., Pant, Prita, Sundararajan, G.
Format: Article
Language:English
Subjects:
Aluminum base alloys
Coatings
Cold
Cold spray deposition
Cold spraying
Copper
Deformation mechanisms
Deformation twinning
Grain refinement
Hardness
Heterogeneity
High strain rate
Mathematical analysis
Nanoindentation
Plastic deformation
Spray deposition
Stacking fault energy
Strengthening
Strengthening mechanism
Twinning
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Summary:Cold spray deposition involves a unique combination of high strain rate and moderate to high strain deformation of powder particles that contrasts it from conventional severe plastic deformation techniques. In the present work, a systematic study of the microstructure and micromechanical properties of cold sprayed Cu and Cu–Al alloys, which are known for significant variation in stacking fault energy with small alloying addition, is presented. The deposition process results in significant grain refinement (
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2021.141242