Friction-Stir Processing of a Cold Sprayed AA7075 Coating Layer on the AZ31B Substrate: Structural Homogeneity, Microstructures and Hardness
In this study, the cold gas dynamic spraying (CGDS) process was employed to modify the surface of AZ31B magnesium alloy with an aluminum-zinc alloy (AA7075). Friction-stir processing (FSP) was subsequently applied as a solid-state localized surface modification technique to improve the structure and...
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ump-191992018-05-18T04:04:38Z http://umpir.ump.edu.my/id/eprint/19199/ Friction-Stir Processing of a Cold Sprayed AA7075 Coating Layer on the AZ31B Substrate: Structural Homogeneity, Microstructures and Hardness Khodabakhshi, F. Marzbanrad, B. L. H., Shah Jahed, H. Gerlich, A. P. TJ Mechanical engineering and machinery In this study, the cold gas dynamic spraying (CGDS) process was employed to modify the surface of AZ31B magnesium alloy with an aluminum-zinc alloy (AA7075). Friction-stir processing (FSP) was subsequently applied as a solid-state localized surface modification technique to improve the structure and integrity of the cold sprayed layer, by enhancing densification, homogeneity, and microstructural features of the as-deposited material. The structure of precipitates and grains were also refined due to the applied severe plastic deformation during FSP, which ultimately affects the indentation hardness resistance of the processed AZ31B-AA7075 bi-metallic structure. Microscopy indicated slight grain coarsening within the AZ31B substrate occurred simultaneously with refinement of the AA7075 coating, along with significant hardness improvements of ~ 80% and 30% respectively for each region in terms of Vickers hardness after FSP. Elsevier 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/19199/7/fkm-2017-lhshah-Friction-stir%20processing%20of%20a%20cold%20sprayed1.pdf Khodabakhshi, F. and Marzbanrad, B. and L. H., Shah and Jahed, H. and Gerlich, A. P. (2017) Friction-Stir Processing of a Cold Sprayed AA7075 Coating Layer on the AZ31B Substrate: Structural Homogeneity, Microstructures and Hardness. Surface and Coatings Technology, 331. pp. 116-128. ISSN 0257-8972 https://doi.org/10.1016/j.surfcoat.2017.10.060 doi: 10.1016/j.surfcoat.2017.10.060 |
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TJ Mechanical engineering and machinery |
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TJ Mechanical engineering and machinery Khodabakhshi, F. Marzbanrad, B. L. H., Shah Jahed, H. Gerlich, A. P. Friction-Stir Processing of a Cold Sprayed AA7075 Coating Layer on the AZ31B Substrate: Structural Homogeneity, Microstructures and Hardness |
description |
In this study, the cold gas dynamic spraying (CGDS) process was employed to modify the surface of AZ31B magnesium alloy with an aluminum-zinc alloy (AA7075). Friction-stir processing (FSP) was subsequently applied as a solid-state localized surface modification technique to improve the structure and integrity of the cold sprayed layer, by enhancing densification, homogeneity, and microstructural features of the as-deposited material. The structure of precipitates and grains were also refined due to the applied severe plastic deformation during FSP, which ultimately affects the indentation hardness resistance of the processed AZ31B-AA7075 bi-metallic structure. Microscopy indicated slight grain coarsening within the AZ31B substrate occurred simultaneously with refinement of the AA7075 coating, along with significant hardness improvements of ~ 80% and 30% respectively for each region in terms of Vickers hardness after FSP. |
format |
Article |
author |
Khodabakhshi, F. Marzbanrad, B. L. H., Shah Jahed, H. Gerlich, A. P. |
author_facet |
Khodabakhshi, F. Marzbanrad, B. L. H., Shah Jahed, H. Gerlich, A. P. |
author_sort |
Khodabakhshi, F. |
title |
Friction-Stir Processing of a Cold Sprayed AA7075 Coating Layer on the AZ31B Substrate: Structural Homogeneity, Microstructures and Hardness |
title_short |
Friction-Stir Processing of a Cold Sprayed AA7075 Coating Layer on the AZ31B Substrate: Structural Homogeneity, Microstructures and Hardness |
title_full |
Friction-Stir Processing of a Cold Sprayed AA7075 Coating Layer on the AZ31B Substrate: Structural Homogeneity, Microstructures and Hardness |
title_fullStr |
Friction-Stir Processing of a Cold Sprayed AA7075 Coating Layer on the AZ31B Substrate: Structural Homogeneity, Microstructures and Hardness |
title_full_unstemmed |
Friction-Stir Processing of a Cold Sprayed AA7075 Coating Layer on the AZ31B Substrate: Structural Homogeneity, Microstructures and Hardness |
title_sort |
friction-stir processing of a cold sprayed aa7075 coating layer on the az31b substrate: structural homogeneity, microstructures and hardness |
publisher |
Elsevier |
publishDate |
2017 |
url |
http://umpir.ump.edu.my/id/eprint/19199/ http://umpir.ump.edu.my/id/eprint/19199/ http://umpir.ump.edu.my/id/eprint/19199/ http://umpir.ump.edu.my/id/eprint/19199/7/fkm-2017-lhshah-Friction-stir%20processing%20of%20a%20cold%20sprayed1.pdf |
first_indexed |
2023-09-18T22:27:31Z |
last_indexed |
2023-09-18T22:27:31Z |
_version_ |
1777416065713700864 |