Macro- and Microstructural Characterization of Cup-Shaped AlSi10Mg Components Fabricated by Selective Laser Melting (SLM)

Uzan, Naor Elad; Rosenthal, I.; Stern, A.

doi:10.1007/s13632-016-0305-x

Cited by 13 publications

(5 citation statements)

References 17 publications

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“…However, there are errors in the study. Uzan et al 6 aimed to characterize the macro-and microstructure of AlSi10Mg cup-shaped parts produced by additive manufacturing selective laser melting. Unfortunately, the research direction is wrong.…”

Section: Introductionmentioning

confidence: 99%

(Retracted) Image restoration and quantitative metallographic tissue based on machine vision

Shi²,

Ke³

et al. 2022

J. Electron. Imag.

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. In recent years, with the development of computer image processing technology and quantitative metallography, quantitative metallographic analysis and image restoration based on machine vision image processing have attracted extensive attention. To deeply study the special ability of machine vision technology in metallographic image restoration and quantitative analysis, we adopt a model construction method, parameter design method and comparative analysis method to collect samples and analyze the machine vision system. Through quantitative metallographic organization, based on the progress in artificial neural networks and classification algorithms, a set of analysis system equipment and image restoration algorithm was finally established. The experimental results show that the recognition rate of this method is 5.69% higher than that of method 3, and the overall recognition rate is 5.1% higher than that of method 3, reaching 98.65%. It basically proves the superiority of the image classification algorithm in this paper and also indirectly proves that the system can play a role in the restoration and quantitative analysis of metallographic tissue images.

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Section: Introductionmentioning

confidence: 99%

(Retracted) Image restoration and quantitative metallographic tissue based on machine vision

Shi²,

Ke³

et al. 2022

J. Electron. Imag.

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“…It is found that there are three distinct regions on both side of the SLM produced samples (XYplane and XZ-plane); each region is composed of the cell-like structure with comparable size and number density. For the SLM AlSi10Mg alloy, the center of the melt pool consists of the fine cellular structure; the Al matrix is surrounded by the eutectic Si networks, which are woven by the nanosized Si particles [34,46,79]. The area between the center and boundary of the melt pool is composed of coarser cells compared to the central structure, the density of which is decreased due to the larger It is found that there are three distinct regions on both side of the SLM produced samples (XY-plane and XZ-plane); each region is composed of the cell-like structure with comparable size and number density.…”

Section: In As-built Statementioning

confidence: 99%

“…The area between the center and boundary of the melt pool is composed of coarser cells compared to the central structure, the density of which is decreased due to the larger It is found that there are three distinct regions on both side of the SLM produced samples (XY-plane and XZ-plane); each region is composed of the cell-like structure with comparable size and number density. For the SLM AlSi10Mg alloy, the center of the melt pool consists of the fine cellular structure; the Al matrix is surrounded by the eutectic Si networks, which are woven by the nano-sized Si particles [34,46,79]. The area between the center and boundary of the melt pool is composed of coarser cells compared to the central structure, the density of which is decreased due to the larger size, and the orientation of the elongated cells are in the direction away from the center, which is also in accordance with the direction of heat diffusion.…”

Section: In As-built Statementioning

confidence: 99%

Corrosion Behaviors of Selective Laser Melted Aluminum Alloys: A Review

Chen

Zhang

Jia

et al. 2020

Metals

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Selective laser melting (SLM) is an ideal method to directly fabricate products with high geometrical complexity. With low density and good corrosion resistance, aluminum alloys are widely used as important structural materials. Microstructures and mechanical properties of SLMed aluminum alloys have been recently widely studied. Corrosion behavior as a vital concern during the service of SLMed aluminum alloy parts has also drawn many attentions. Previous studies have found that SLM-processed aluminum alloys exhibit better corrosion resistance compared to the casted and wrought counterparts for both Al-Si alloys and high strength 2xxx Al alloys, which is mainly due to the unique microstructure features of SLMed Al alloys. For Al-Si alloys, with different shapes of Si networks, the different building planes show discrepant corrosion behaviors. Owing to the rougher surface with relatively larger numbers of defects, the as-printed surface is vulnerable to corrosion than the polished. Heat treatment has a negative effect on corrosion resistance due to the breakup of Si networks. The microstructure features correlated with the corrosion behaviors were also reviewed in this paper. Some suggestions on the future study of corrosion behaviors of SLMed Al alloys were put forward.

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“…Yet, few systematic investigations concerning the effect of the preheat temperature have been carried out so far . The use and design of support structures between the processed part and the building platform, the geometry of the part and its positioning within the building chamber may affect the thermal transfer, and the thermal history during the process . It should be emphasized that these effects are important for the manufacturing of porous cellular structures, that are of particular interest for the aeronautic and transportation industries …”

Section: Am Of Al Alloysmentioning

confidence: 99%

Fusion‐Based Additive Manufacturing for Processing Aluminum Alloys: State‐of‐the‐Art and Challenges

2017

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The fusion-based additive manufacturing of Al alloys has been developing at an ever faster pace since early 2015, after a comparatively slow start with respect to other metallic materials. This paper reviews the recent developments with the aim of identifying challenges and opportunities for future work. Additive Al components possess strongly out-of-equilibrium microstructures resulting in potentially enhanced mechanical properties. A deeper understanding of the thermal history during fabrication, the design of new high strength alloys and the development of better adapted post-processing procedures are still needed to take full advantages of the specificities of additive manufacturing.

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Macro- and Microstructural Characterization of Cup-Shaped AlSi10Mg Components Fabricated by Selective Laser Melting (SLM)

Cited by 13 publications

References 17 publications

(Retracted) Image restoration and quantitative metallographic tissue based on machine vision

(Retracted) Image restoration and quantitative metallographic tissue based on machine vision

Corrosion Behaviors of Selective Laser Melted Aluminum Alloys: A Review

Fusion‐Based Additive Manufacturing for Processing Aluminum Alloys: State‐of‐the‐Art and Challenges

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