Processability of recycled quasicrystalline Al-Fe-Cr-Ti composites by selective laser melting - A statistical approach

Araújo, Aylanna P. M.; Kiminami, Cláudio S.; Uhlenwinkel, Volker; Gargarella, Piter

doi:10.1016/j.mtla.2022.101377

Cited by 11 publications

(9 citation statements)

References 64 publications

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“…This result reveals that the scan speed (factor A), the laser power (factor B) and the interaction between all factors are statically significant on the relative density of L-PBF samples because the respective bars cross the reference line ∼2. On the other hand, hatch distance (factor C) does not cross the reference line, indicating that it is not significant for the relative density [23]. The diagram of the main effect of the parameters, exhibited in Figure 2(b), shows that the scan speed is inversely proportional to the relative density of L-PBF samples.…”

Section: Resultsmentioning

confidence: 99%

Processing parameter correlations in powder bed fusion additive manufacturing for Fe–Si soft magnetic materials through design of experiments

Ji,

Shim,

Kim

et al. 2023

Powder Metallurgy

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Owing to its processing freedom, additive manufacturing has emerged as a promising material processing method for Fe-Si alloys. In this process, the melt pool fused by selective laser undergoes rapid cooling, which results in non-equilibrium solidifications. Therefore, it is essential to systematically investigate the relationship between process parameters, microstructure and magnetic properties of the Fe-Si alloys manufactured by the L-PBF process. However, the conventional experimental approaches require time-consuming and costly procedures and a great deal of trial and error. In this regard, an efficient and cost-effective tool is needed to investigate the effect of process parameters on the microstructure and magnetic properties under a wide range of process conditions. In this study, the processing parameter correlations were conducted based on the statistical methods using the design of experiments. Through this method, the effect of process parameters on various properties, including relative density, coercivity and saturation magnetisation, was systematically investigated.

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Section: Resultsmentioning

confidence: 99%

Processing parameter correlations in powder bed fusion additive manufacturing for Fe–Si soft magnetic materials through design of experiments

Ji,

Shim,

Kim

et al. 2023

Powder Metallurgy

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show abstract

“…Therefore, the quality of the metal matrix powder, such as particle size distribution, sphericity, flowability, and chemical composition, is vital for preparing composite feedstocks. Particle size distribution delineates the proportionality of particles of disparate sizes in the powder, influencing the packing efficiency, particle melting, and flowability of particles [172][173][174]. AM technologies impose distinct requisites on powder particle size parameters [175].…”

Section: Matrix Materialsmentioning

confidence: 99%

An overview of additively manufactured metal matrix composites: preparation, performance, and challenge

Chen,

Qin,

Zhang

et al. 2024

Int. J. Extrem. Manuf.

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Metal matrix composites (MMCs) are frequently employed in various advanced industries due to their high modulus and strength, favorable wear and corrosion resistance, and other good properties at elevated temperatures. In recent decades, additive manufacturing (AM) technology has garnered attention as a potential way for fabricating MMCs. This article provides a comprehensive review of recent endeavors and progress in additive manufacturing of MMCs, encompassing available AM technologies, types of reinforcements, feedstock preparation, synthesis principles during the AM process, typical AM-produced MMCs, strengthening mechanisms, challenges and future interests. Compared to conventionally manufactured MMCs, AM-produced MMCs exhibit more uniformly distributed reinforcements and refined microstructure, resulting in comparable or even better mechanical properties. In addition, AM technology can produce bulk MMCs with significantly low porosity and fabricate geometrically complex MMC components and MMC lattice structures. As reviewed, many AM-produced MMCs, such as Al matrix composites, Ti matrix composites, Nickel matrix composites, Fe matrix composites, etc., have been successfully produced. The types and contents of reinforcements strongly influence the properties of AM-produced MMCs, the choice of AM technology, and the applied processing parameters. In these MMCs, four primary strengthening mechanisms have been identified: Hall-Petch strengthening, dislocation strengthening, load transfer strengthening, and Orowan strengthening. AM technologies offer advantages that enhance the properties of MMCs when compared with traditional fabrication methods. Despite the advantages above, further challenges of AM-produced MMCs are still faced, such as new methods and new technologies for investigating AM-produced MMCs, the intrinsic nature of MMCs coupled with AM technologies, and challenges in the AM processes. Therefore, the article concludes by discussing the challenges and future interests of additive manufacturing of MMCs.

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“…In conclusion, a certain fraction of fine powders are normally required to optimize part properties, since they can be easily melted, which is conducive to improving the density and surface quality of the parts [43,44]. However, fine powders have limitations in terms of agglomeration, which can adversely affect the flowability [46]. Therefore, it is critical to comprehensively consider the balanced effects of flowability and agglomeration when selecting a suitable PSD.…”

Section: Particle Size Distributionmentioning

confidence: 99%

Characterization, preparation, and reuse of metallic powders for laser powder bed fusion: a review

Sun,

Chen,

Liu

et al. 2023

Int. J. Extrem. Manuf.

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Laser powder bed fusion (L-PBF) has attracted significant attention since its inception, providing unprecedented advantages to fabricate metallic components with complex geometry. The quality and performance of as-printed alloys is an intricate function consisting of numerous factors linking the feedstock powders, manufacturing, and post-treatment. As the starting materials, powders play a critical role in influencing the printing consistency, total fabrication cost, and mechanical properties. In consideration of its importance for L-PBF, the present review aims to review the recent progress on metallic powders for L-PBF focusing on powder characterization, powder fabrication, and powder reuse. The methods of powder characterization and fabrication were presented in the beginning by analyzing the principles and corresponding advantages and limitations. Subsequently, the effect of powder reuse on the powder characteristics and mechanical performance of L-PBF parts is analyzed focusing on steels, nickel-based superalloys, Ti and Ti alloys, and Al alloys. The evolution trend of powders and as-printed parts varies for different alloy systems based on the existing studies, which makes the proposal of a unified reuse protocol infeasible. Finally, perspectives are presented to cater to the increasing applications of AM technologies for future investigations. The present state-of-the-art work can pave the way for the broad industrial applications of L-PBF by enhancing printing consistency and reducing the total cost from the perspective of powders.

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Processability of recycled quasicrystalline Al-Fe-Cr-Ti composites by selective laser melting - A statistical approach

Cited by 11 publications

References 64 publications

Processing parameter correlations in powder bed fusion additive manufacturing for Fe–Si soft magnetic materials through design of experiments

Processing parameter correlations in powder bed fusion additive manufacturing for Fe–Si soft magnetic materials through design of experiments

An overview of additively manufactured metal matrix composites: preparation, performance, and challenge

Characterization, preparation, and reuse of metallic powders for laser powder bed fusion: a review

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