In the present study, Al-Cu WAAM deposits were fabricated under three conditions: powder free, with TiB2 and TiC powder at the interlayer. After deposition, the deposits were solutionized at 530 °C for 90 min and artificially aged at 180 °C for 3 h. The effect of powder particle addition and post-processing heat treatment (PPHT) were investigated. Powder free specimens show non-uniform structures throughout the deposit. TiB2 and TiC powders refined the non-uniform solidification structure and diminished it to an equiaxed structure. PPHT promotes precipitation of secondary phases, enhancing mechanical characteristics of the depsoits. As-deposited specimens had Ultimate Tensile Strength (UTS) values of 263 MPa (powder free), 322 MPa (TiB2), and 314 MPa (TiC), whereas PPHT specimens had 465, 487, and 482 MPa.
LyuFWangLZhangJ, et al.Parameters prediction in additively manufactured Al-Cu alloy using back propagation neural network. Mater Sci Technol2023; 39: 3263–3277.
2.
MondalSMondalPMishraDP. Research progress on ceramic nanomaterials reinforced aluminum matrix nanocomposites. Mater Sci Technol2023; 39: 1841–1857.
3.
ChenDWangLHeS, et al.Three-dimensional forming characteristics and mechanical property of additive manufacturing aluminium–copper alloys. Mater Sci Technol2022; 38: 1519–1531.
4.
MiaoJChenJRenJ, et al.Wire-arc additive manufactured Al–Cu alloy: microstructure, mechanical properties and their anisotropy. Mater Sci Technol2023; 39: 2124–2134.
5.
SunLLyuFZhangJ, et al.Microstructure and weakening mechanism of additive-manufactured Al–Cu alloy under different heat input. Mater Sci Technol2024; 40: 247–261.
6.
GaoZLiYShiH, et al.Microstructure characteristics under varying solidification parameters in different zones during CMT arc additive manufacturing process of 2319 aluminum alloy. Vacuum2023; 214: 112177.
7.
KannanARRajkumarVVasudevanSV, et al.Microstructure, hardness, and electrical resistivity of Al-Cu alloy fabricated via wire arc additive manufacturing. Mater Today Commun2024; 39: 108582.
8.
ZhouYLinXKangN, et al.Mechanical properties and precipitation behavior of the heat-treated wire + arc additively manufactured 2219 aluminum alloy. Mater Charact2021; 171: 110735.
9.
GuJDingJWilliamsSW, et al.The strengthening effect of inter-layer cold working and post-deposition heat treatment on the additively manufactured Al-6.3Cu alloy. Mater Sci Eng A2016; 651: 18–26.
10.
TawfikMMNemat-AllaMMDewidarMM. Enhancing the properties of aluminum alloys fabricated using wire + arc additive manufacturing technique – A review. J Mater Res Technol2021; 13: 754–768.
11.
DongBCaiXXiaY, et al.Effects of interlayer temperature on the microstructures of wire arc additive manufactured Al-Zn-Mg-Cu alloy: insights into texture responses and dynamic precipitation behaviors. Addit Manuf2021; 48: 102453.
12.
FanYChenFCaoS, et al.Effect of interlayer coating La2O3 particles on arc behavior and microstructure of wire arc additive manufacturing Al-Si alloy deposition. J Manuf Process2023; 101: 943–958.
13.
YuanTXuDJiangX, et al.Enhanced strength-plasticity of 2319 Al-Cu alloy formed by hybrid interlayer friction stir processing and wire-arc additive manufacturing. J Mater Process Technol2023; 321: 118146.
14.
BaiJYFanCLLinSB, et al.Mechanical properties and fracture behaviors of GTA-additive manufactured 2219-Al after an especial heat treatment. J Mater Eng Perform2017; 26: 1808–1816.
HönnigeJRColegrovePAGangulyS, et al.Control of residual stress and distortion in aluminium wire + arc additive manufacture with rolling. Addit Manuf2018; 22: 775–783.
17.
ZhangCGaoMZengX. Workpiece vibration augmented wire arc additive manufacturing of high strength aluminum alloy. J Mater Process Technol2019; 271: 85–92.
18.
ZhangLBianWFuK, et al.Improvement of mechanical properties and microstructure of wire arc additive manufactured 2319 aluminum alloy by mechanical vibration acceleration. Mater Charact2024; 208: 113672.
19.
ZhouYLinXKangN, et al.Influence of travel speed on microstructure and mechanical properties of wire + arc additively manufactured 2219 aluminum alloy. J Mater Sci Technol2020; 37: 143–153.
20.
SuCChenXGaoC, et al.Effect of heat input on microstructure and mechanical properties of Al-Mg alloys fabricated by WAAM. Appl Surf Sci2019; 486: 431–440.
21.
SinhaAKPramanikSYagatiKP. Effect of interlayer time interval on GTAW based wire arc additive manufacturing of 2319 aluminium alloy. Sādhanā2023; 48: 122.
22.
da SilvaLJFerraresiHNAraújoDB, et al.Effect of thermal management approaches on geometry and productivity of thin-walled structures of er 5356 built by wire + arc additive manufacturing. Coatings2021; 11: 1141.
23.
SinhaAKPramanikSYagatiKP. WAAM of Al–Cu alloy: effect of cooling and remelting on grain size and mechanical properties. Trans Indian Inst Met2023; 76: 1131–1139.
24.
SinhaAKYagatiKP. Wire arc additive manufacturing of Al-Cu alloy-grain refinement, strengthening and thermal simulation. Silicon2024; 16: 441–461.
25.
WangLSuoYLiangZ, et al.Effect of titanium powder on microstructure and mechanical properties of wire + arc additively manufactured Al-Mg alloy. Mater Lett2019; 241: 231–234.
26.
DuHBiJZhangY, et al.The role of the partial melting zone in the nugget growth process of unequal-thickness dissimilar aluminum alloy 2219/5A06 resistance spot welding. J Manuf Process2019; 45: 304–311.
27.
AhnSYHaftlangFKimES, et al.Cellular structure engineering of additive manufactured CoCrFeMnNi high-entropy composite: the role of hard ceramic reinforcements in elemental segregation of constitutive elements. Addit Manuf Letters2023; 7: 100172.
28.
SinghVWuTHagenE, et al.How positioning of a hard ceramic TiB2 layer in Al/CuO multilayers can regulate the overall energy release behavior. Fuel2023; 349: 128599.
29.
MaoHShenFZhangY, et al.Microstructure and mechanical properties of carbide reinforced TiC-based ultra-high temperature ceramics: a review. Coatings2021; 11: 1444.
30.
GuoXSongKXuW, et al.Effect of TiB2 particle size on the material transfer behaviour of Cu–TiB2 composites. Mater Sci Technol2020; 36: 1685–1694.
31.
WangCJiangZMaX, et al.Effect of solid solution time on microstructure and corrosion property of wire arc additively manufactured 2319 aluminum alloy. J Mater Res Techno2023; 26: 2749–2758.
32.
PanickerCTJSenthilkumarV. Effect of arc rotation on the enhancement of mechanical properties of ER70S6 in WAAM. Vacuum2024; 220: 112837.
33.
ChenFYangYFengH. Regional control and optimization of heat input during CMT by wire arc additive manufacturing: modeling and microstructure effects. Materials2021; 14: 1–12.
34.
FangXZhangLChenG, et al.Microstructure evolution of wire-arc additively manufactured 2319 aluminum alloy with interlayer hammering. Mater Sci Eng A2021; 800: 140168.
35.
McleanNBerminghamMJColegroveP, et al.Understanding the grain refinement mechanisms in aluminium 2319 alloy produced by wire arc additive manufacturing. Sci Technol Weld Join2022; 27: 479–489.
36.
JinPLiuYLiF, et al.Realization of structural evolution in grain boundary, solute redistribution and improved mechanical properties by adding TiCnps in wire and arc additive manufacturing 2219 aluminium alloy. J Mater Res Technol2021; 11: 834–848.
37.
LiuKJiangXChenS, et al.Effect of SiC addition on microstructure and properties of Al-Mg alloy fabricated by powder and wire cold metal transfer process. J Mater Res Technol2022; 17: 310–319.
38.
HauserTReischRTBreesePP, et al.Porosity in wire arc additive manufacturing of aluminium alloys. Addit Manuf2021; 41: 101993.
39.
AranaMUkarERodriguezI, et al.Strategies to reduce porosity in Al-Mg WAAM parts and their impact on mechanical properties. Metals2021; 11: 524.
40.
SunRLiLZhuY, et al.Microstructure, residual stress and tensile properties control of wire-arc additive manufactured 2319 aluminum alloy with laser shock peening. J Alloys Compd2018; 747: 255–265.
41.
AranaMUkarERodriguezI, et al.Influence of deposition strategy and heat treatment on mechanical properties and microstructure of 2319 aluminium WAAM components. Mater Des2022; 221: 110974.
42.
ZhangYYamaneTHiraoK, et al.Microstructures and Vickers hardness of rapidly solidified Al-Cu alloys near the Al-Al2Cu equilibrium eutectic composition. J Mater Sci1991; 26: 5799–5805.
43.
WangSFanC. Crystal structures of Al2Cu revisited: understanding existing phases and exploring other potential phases. Metals2019; 9: 1037.
44.
DongBXQiuFLiQ, et al.The synthesis, structure, morphology characterizations and evolution mechanisms of nanosized titanium carbides and their further applications. Nanomaterials2019; 9: 1152.
45.
XiangHFengZLiZ, et al.Temperature-dependence of structural and mechanical properties of TiB2: a first principle investigation. J Appl Phys2015; 117: 225902.
46.
WillG. Electron deformation density in titanium diboride chemical bonding in TiB2. J Solid State Chem2004; 177: 628–631.
47.
FugerCHahnRHirleA, et al.Revisiting the origins of super-hardness in TiB2+z thin films – impact of growth conditions and anisotropy. Surf Coat Technol2022; 446: 128806.
