This work evaluates the microstructure and corrosion behaviour of Al coating deposited by cold spraying onto FSW AA2219 alloy. The results showed that a dense coating could be deposited on the FSW joint surface with low porosity (0.77%). XRD analysis indicated that no new phases were formed during the spraying. Refined grains were observed in the coating as expected by SEM results. Electrochemical tests revealed the coating had positive corrosion resistance performance. Immersion tests confirmed that the coating effectively withstood the corrosion attack in an aggressive environment and a typical intergranular corrosion can be observed in the surface of the coating particles.
GrilliR.BakerM.A.CastleJ.E.DunnB.WattsJ.F.Localized corrosion of a 2219 aluminium alloy exposed to a 3.5% NaCl solutionCorros Sci201052 (9): 2855–2866. doi: 10.1016/j.corsci.2010.04.035
2.
SurekhaK.MurtyB.S.Prasad RaoK.Effect of processing parameters on the corrosion behaviour of friction stir processed AA 2219 aluminum alloySolid State Sci200911 (4): 907–917. doi: 10.1016/j.solidstatesciences.2008.11.007
3.
SurekhaK.MurtyB.S.RaoK.P.Microstructural characterization and corrosion behavior of multipass friction stir processed AA2219 aluminium alloy. Surf Coat Technol2008202 (17): 4057–4068. doi: 10.1016/j.surfcoat.2008.02.001
4.
MishraR.S.MaZ.Y.Friction stir welding and processing. Mater Sci Eng200550 (1-2): 1–78. doi: 10.1016/j.mser.2005.07.001
5.
LiangX.P.LiH.Z.LiZ.HongT.MaB.LiuS.D.LiuY.Study on the microstructure in a friction stir welded 2519-T87 Al alloy. Mater Des201235: 603–608. doi: 10.1016/j.matdes.2011.10.009
6.
ThreadgillP.L.LeonardA.J.ShercliffH.R.WithersP.J.Friction stir welding of aluminium alloys. Int Mater Rev200954: 49–93. doi: 10.1179/174328009X411136
7.
EmilieB.AngelineP.Q.MoniqueP.OlivierD.MarieT.Relationship between microstructure, microhardness and corrosion sensitivity of an AA2024-T3 friction stir welded joint. Corros Sci201153 (9): 3026–3034. doi: 10.1016/j.corsci.2011.05.049
8.
JariyaboonM.DavenportA.J.AmbatR.ConnollyB.J.WilliamsS.W.PriceD.A.Effect of cryogenic cooling on corrosion of friction stir welded AA7010-T7651. Anti-Corros Methods Mater201057 (2): 83–89. doi: 10.1108/00035591011028050
PagliaC.S.JataK.V.BuchheitR.G.The influence of artificial aging on the microstructure, mechanical properties, corrosion, and environmental cracking susceptibility of A 7075 friction-stir-weld. Mater Corros200758 (10): 737–750. doi: 10.1002/maco.200704063
11.
JayarajR.K.MalarvizhiS.BalasubramanianV.Optimizing the micro-arc oxidation (MAO) parameters to attain coatings with minimum porosity and maximum hardness on the friction stir welded AA6061 aluminium alloy welds. Defence Technol. 201713 (2): 111–117. doi: 10.1016/j.dt.2017.03.003
12.
SamarJ.K.Microstructure and corrosion properties of diode laser melted friction stir weld of aluminum alloy 2024-T351. Appl Surf Sci2011257 (9): 3985–3977. doi: 10.1016/j.apsusc.2010.11.163
13.
SivarajP.KanagarajanD.BalasubramanianV.Effect of post weld heat treatment on tensile properties and microstructure characteristics of friction stir welded armour grade AA7075-T651 aluminium alloy. Defence Technol201410: 1–8. doi: 10.1016/j.dt.2014.01.004
14.
PagliaC.S.JataK.V.BuchheitR.G.The influence of artificial aging on the microstructure, mechanical properties, corrosion, and environmental cracking susceptibility of a 7075 friction-stir-weld. Mater Corros200758: 737–750. doi: 10.1002/maco.200704063
15.
ChenM.A.OuY.C.FuY.H.LiZ.H.LiJ.M.LiuS.D.Effect of friction stirred Al-Fe-Si particles in 6061 aluminum alloy on structure and corrosion performance of MAO coating. Surf Coat Technol20163: 85–97. doi: 10.1016/j.surfcoat.2016.07.003
16.
Prasad RaoK.Janaki RamG.D.StuckerB.E.Improvement in corrosion resistance of friction stir welded aluminum alloys with micro-Arc oxidation coatings. Scr Mater. 200858 (11): 998–1001. doi: 10.1016/j.scriptamat.2008.01.033
17.
MaS.C.ZhaoY.ZouJ.S.YanK.LiuC.The effect of laser surface melting on microstructure and corrosion behavior of friction stir welded aluminum alloy 2219. Opt Laser Technol201796: 299–306. doi: 10.1016/j.optlastec.2017.05.028
18.
PadovaniC.DavenportA.J.ConnollyB.J.WilliamsS.W.SiggsEirianGrosoAmelaStampanoniMarcoCorrosion protection of AA7449-T7951 friction stir welds by laser surface melting with an excimer laser. Corros Sci201153 (12): 3956–3969. doi: 10.1016/j.corsci.2011.07.043
19.
KalitaS.J.Microstructure and corrosion properties of diode laser melted friction stir weld of aluminum alloy 2024 T351. Appl Surf Sci2011257 (9): 3985-3997. doi: 10.1016/j.apsusc.2010.11.163
20.
DostaS.BolelliG.CandeliA.GuilemanyL.CanoI.G.GuilemanyJ.M.Plastic deformation phenomena during cold spray impact of WC-Co particles onto metal substrates. Acta Mater. 2017124: 173–181. doi: 10.1016/j.actamat.2016.11.010
SirventP.GarridoM.A.MúnezC.J.PozaP.VezzùS.Effect of higher deposition temperatures on the microstructure and mechanical properties of Al 2024 cold sprayed coatings. Surf Coat Technol2018337: 461–470. doi: 10.1016/j.surfcoat.2018.01.055
23.
WeiY.K.LiY.J.ZhangY.LuoX.T.LiC.J.Corrosion resistant nickel coating with strong adhesion on AZ31B magnesium alloy prepared by an in-situ shot-peening-assisted cold spray. Corros Sci2018138: 105–115. doi: 10.1016/j.corsci.2018.04.018
24.
KimH.J.LeeC.H.HwangS.Y.Fabrication of WC–Co coatings by cold spray deposition. Surf Coat Technol2005191 (2 – 3): 335–340. doi: 10.1016/j.surfcoat.2004.04.058
25.
LiW.Y.JiangR.R.HuangC.J.ZhangZ.H.FengY.Effect of cold sprayed Al coating on mechanical property and corrosion behavior of friction stir welded AA2024-T351 joint. Mater Des201565: 757–761. doi: 10.1016/j.matdes.2014.10.007
26.
TrahanP. Corrosion protection of friction stir welded Al 7075 panels using cold gas dynamic spray, In: Presentation to 2013 international thermal spray, Busan, Republic of Korea.
27.
da SilvaF.S.CincaN.DostaS.CanoI.G.CoutoM.GuilemanyJ.M.BenedettiA.V.Corrosion behavior of WC-Co coatings deposited by cold gas spray onto AA7075-T6. Corros Sci2018136: 231–243. doi: 10.1016/j.corsci.2018.03.010
28.
ScamansG.M.BirbilisN.BuchheitR.G.3.08-Corrosion of aluminum and its alloys. Shreir's Corrosion20103: 1974–2010. doi: 10.1016/B978-044452787-5.00095-0
