Inoculation treatment of an additively manufactured 2024 aluminium alloy with titanium nanoparticles

Tan, Qiyang; Zhang, Jingqi; Sun, Qiang; Fan, Zhiqi; Gan, Li; Yin, Yu; Liu, Yingang; Zhang, Mingxing

doi:10.1016/j.actamat.2020.06.026

Cited by 289 publications

(58 citation statements)

References 84 publications

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“…In recent years, Al-Cu series aluminum alloys have been researched due to their good heat treatability, excellent specific strength, and good damage tolerance [19][20][21]. However, the elimination of cracks in Al-Cu series aluminum alloys resulting from the high cooling rate of SLM (10 4 -10 5 K/s [22]) is considered as the most important challenge of Al-Cu series aluminum alloys that are fabricated by SLM.…”

Section: Introductionmentioning

confidence: 99%

Wear Behavior of a Heat-Treatable Al-3.5Cu-1.5Mg-1Si Alloy Manufactured by Selective Laser Melting

Wang

Liu

et al. 2021

Materials

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In this study, the wear behavior of a heat-treatable Al-7Si-0.5Mg-0.5Cu alloy fabricated by selective laser melting was investigated systematically. Compared with the commercial homogenized AA2024 alloy, the fine secondary phase of the SLM Al-Cu-Mg-Si alloy leads to a low specific wear rate (1.8 ± 0.11 × 10−4 mm3(Nm)−1) and a low average coefficient of friction (0.40 ± 0.01). After the T6 heat treatment, the SLM Al-Cu-Mg-Si alloy exhibits a lower specific wear rate (1.48 ± 0.02 × 10−4 mm3(Nm)−1), but a similar average coefficient of friction (0.34 ± 0.01) as the heat-treated AA2024 alloy. Altogether, the SLM Al-3.5Cu-1.5Mg-1Si alloy is suitable for the achievement of not only superior mechanical performance, but also improved tribological properties.

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Section: Introductionmentioning

confidence: 99%

Wear Behavior of a Heat-Treatable Al-3.5Cu-1.5Mg-1Si Alloy Manufactured by Selective Laser Melting

Wang

Liu

et al. 2021

Materials

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“…Similarly, Spierings et al [120] and Zhou et al [119] added Sc and/or Zr to Al-Mg and Al-Mg-Zn alloys to eliminate the occurrence of hot tears through the formation of Al 3 (Sc, Zr) particles, which contributed to grain refinement. Tan et al [123] added 0.7 wt% Ti to AA2024 in situ to form Al 3 Ti nanoparticles for grain refinement. Similar additions using different filler materials have also been implemented in the welding process to avoid hot tearing, as summarised in Ref.…”

Section: Grain Refinersmentioning

confidence: 99%

Recent advances in hot tearing during casting of aluminium alloys

Katgerman

et al. 2021

Progress in Materials Science

120

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Hot tearing is one of the most severe and irreversible casting defects for many metallic materials. In 2004, Eskin et al. published a review paper in which the development of hot tearing of aluminium alloys was evaluated . Sixteen years have passed and this domain has undergone considerable development. Nevertheless, an updated systematic description of this field has not been presented. Therefore, this article presents the latest research status of the hot tearing during the casting of aluminium alloys. The first part explains the hot tearing phenomenon and its occurrence mechanism. The second part presents a detailed description and analysis of the characterisation methods of the mushy zone mechanical properties and hot tearing susceptibility. The third part presents considerable data pertaining to the mushy zone behaviour, including those of the linear contraction and load behaviour during solidification, semi-solid strength and ductility, and characteristic points related to hot tearing. The fourth part examines the effect of the composition and casting process parameters on the hot tearing susceptibility of aluminium alloys. The fifth part describes the hot tearing simulations and the associated criteria and mechanisms. Finally, recommendations for the further development of hot tearing research are presented.

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“…Aluminum mixed with ceramics are manufactured through a range of processing routes, including thermal spraying and electrochemical deposition, but more commonly through powder metallurgy and stir casting principles. Powder metallurgy routes are highly suited for powder-based additive manufacturing, and several examples of Selective Laser Melting (SLM) with ceramic-reinforced aluminum are demonstrated in the literature [187][188][189][190]. Composite wire production for arc or laser deposition are commonly obtained through casting principles.…”

Section: Ceramic Particle Additionsmentioning

confidence: 99%

Review of Aluminum Alloy Development for Wire Arc Additive Manufacturing

et al. 2021

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Processing of aluminum alloys by wire arc additive manufacturing (WAAM) gained significant attention from industry and academia in the last decade. With the possibility to create large and relatively complex parts at low investment and operational expenses, WAAM is well-suited for implementation in a range of industries. The process nature involves fusion melting of a feedstock wire by an electric arc where metal droplets are strategically deposited in a layer-by-layer fashion to create the final shape. The inherent fusion and solidification characteristics in WAAM are governing several aspects of the final material, herein process-related defects such as porosity and cracking, microstructure, properties, and performance. Coupled to all mentioned aspects is the alloy composition, which at present is highly restricted for WAAM of aluminum but received considerable attention in later years. This review article describes common quality issues related to WAAM of aluminum, i.e., porosity, residual stresses, and cracking. Measures to combat these challenges are further outlined, with special attention to the alloy composition. The state-of-the-art of aluminum alloy selection and measures to further enhance the performance of aluminum WAAM materials are presented. Strategies for further development of new alloys are discussed, with attention on the importance of reducing crack susceptibility and grain refinement.

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Inoculation treatment of an additively manufactured 2024 aluminium alloy with titanium nanoparticles

Cited by 289 publications

References 84 publications

Wear Behavior of a Heat-Treatable Al-3.5Cu-1.5Mg-1Si Alloy Manufactured by Selective Laser Melting

Wear Behavior of a Heat-Treatable Al-3.5Cu-1.5Mg-1Si Alloy Manufactured by Selective Laser Melting

Recent advances in hot tearing during casting of aluminium alloys

Review of Aluminum Alloy Development for Wire Arc Additive Manufacturing

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