Effect of axial static magnetic field on microstructure evolution, performance, and melt pool signals of AlSi10Mg fabricated by laser powder bed fusion

Zhou, Hanxiang; Song, Changhui; Yang, Yongqiang; Wang, Di; Liu, Zixin; Xiao, Yunmian; Wang, Meng; Yu, J.; Huang, Kun; Deng, Zhengtai; Fan, Shengjie

doi:10.1016/j.optlastec.2023.109316

Optics & Laser Technology

2023

DOI: 10.1016/j.optlastec.2023.109316

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Effect of axial static magnetic field on microstructure evolution, performance, and melt pool signals of AlSi10Mg fabricated by laser powder bed fusion

Hanxiang Zhou

Changhui Song

Yongqiang Yang

et al.

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Cited by 12 publications

(1 citation statement)

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“…8 Laser scanning preheating assisted laser additive manufacturing technology. (a) Laser synchronous preheating in LDED process [121] ; (b) microstructure of 60%IN625 -40%Ti6Al4V composites with and without preheating [120] ; (c) photos of prepared samples with and without preheating [119] ; (d) diagram of laser scanning assisted SLM process [123] 1002306 -12 SLM and field intensity distribution [133] ; (b) 3D simulation results of thermal electromagnetic force acting on dendrites in 0.12 T static magnetic field [133] ; (c) EBSD image of AlSi10Mg alloy prepared by SLM with 0.85 mT and without static magnetic field [130] ;…”

mentioning

confidence: 99%

多场调控金属激光增材制造研究现状与展望（特邀）

Gao Hairui,

Li Jikang,

Zhang Zhenwu

et al. 2024

中国激光

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Significance Laser additive manufacturing (LAM) technology uses a focused highenergy laser beam as the heat source to achieve integrated forming of complex metal components, avoiding the complex postprocessing steps of traditional processing techniques and achieving high forming efficiency, which makes it have broad application prospects in aerospace, automotive, medical and other fields. The metal additive manufacturing process based on laser and powder mainly includes two types: selective laser melting (SLM) and laser directed energy deposition (LDED). LAM has been widely used in the forming of various metal materials, including aluminum alloys, titanium alloys, copper alloys, nickelbased superalloys, magnesium alloys, steel, and so on.Due to the current widespread use of Gaussian laser in laser additive manufacturing technology, the peak intensity generated in the focusing area is very high. When laser interacts with metal powder, the widthtodepth ratio of the melt pool is small and there are large temperature gradient and cooling rate. The instability caused by complex melt flow dynamics and the accumulation of repeated heating and cooling cycles are prone to keyholes, splashing, spheroidization, residual stress, cracks, and anisotropic microstructures, which seriously affect the strength, toughness, and fatigue resistance of formed components in turn. Modifying the alloy composition 1002306 -23 特邀综述第 51 卷第 10 期/2024 年 5 月/中国激光 or adding strengthening phase particles can effectively eliminate the cracks and anisotropic columnar crystal structure in metal samples.

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mentioning

confidence: 99%

多场调控金属激光增材制造研究现状与展望（特邀）

Gao Hairui,

Li Jikang,

Zhang Zhenwu

et al. 2024

中国激光

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Tuning heterogeneous microstructures to enhance mechanical properties of nano-TiN particle reinforced Haynes 230 composites by laser powder bed fusion

Liu,

Li,

Yin

et al. 2024

Rare Met.

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Frontiers in Laser Additive Manufacturing Technology

Yang,

Jiang,

Han

et al. 2024

Additive Manufacturing Frontiers

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Effect of axial static magnetic field on microstructure evolution, performance, and melt pool signals of AlSi10Mg fabricated by laser powder bed fusion

Cited by 12 publications

References 57 publications

多场调控金属激光增材制造研究现状与展望（特邀）

多场调控金属激光增材制造研究现状与展望（特邀）

Tuning heterogeneous microstructures to enhance mechanical properties of nano-TiN particle reinforced Haynes 230 composites by laser powder bed fusion

Frontiers in Laser Additive Manufacturing Technology

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