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Fabrication of AA6061/316 composites via a double pin FSP tool

Liu, S.
; 
Paidar, M.
; 
Mehrez, S.
; 
Ojo, O.O.
; 
Cooke, Kavian O.
; 
Wang, Y.
Publication Date
2022-09
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Keywords
316 stainless steel, AA6061 aluminium alloy, Friction stir processing, Aluminium matrix composite, Corrosion, Mechanical properties
Rights
(c) 2022 The Authors. This is an Open Access article distributed under the Creative Commons CC-BY license (https://creativecommons.org/licenses/by/4.0/)
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Yes
Open Access status
openAccess
Accepted for publication
2022-07-26
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Engineering and Digital Technology Publications
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Abstract
In this study, a new double pin tool was utilized for the development of AA6061/316 stainless steel reinforced composite by employing the friction stir processing technique for the first time. The microstructure, hardness, tensile, tribological, and corrosion behaviors of the fabricated composites were investigated and comparative assessments were made with the results obtained from the single-pin tool. The results showed that particle-matrix reaction did not occur in the composites irrespective of the nature of the tool profile. The double-pin tool outstandingly boosted the grain refinement (7.01–5.78 μm), particle fragmentation, and distribution within the Al matrix due to the additional pin-assisted plastic deformation, high straining, dynamic recrystallization, and Zener pinning effects. The double-pin tool improved the microhardness (127–141 HV), tensile strength (162–233 MPa), and corrosion resistance of the composite with respect to the single-pin tool counterparts. The replacement of the single pin tool with a double pin tool diminished the specific wear rate (0.38–0.22 mm3/Nm) of the composite. The double-pin tool has a favourable impact on the structure, mechanical, and corrosion behaviours of the AA6061/316 stainless steel reinforced composite. It is thus recommended for composite development.
URI
http://hdl.handle.net/10454/19147
Version
Published version
Citation
Liu S, Paidar M, Mehrez S et al (2022) Fabrication of AA6061/316 composites via a double pin FSP tool. Journal Of Materials Research And Technology. 20: 2826-2840.
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Link to Version of Record
https://doi.org/10.1016/j.jmrt.2022.07.156
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Article
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