The microstructure and properties evolution of SS316L fabricated by magnetic field-assisted laser powder bed fusion

Zhou, Hanxiang; Song, Changhui; Yang, Yongqiang; Han, Changjun; Wang, Meng; Xiao, Yunmian; Liu, Zixin

doi:10.1016/j.msea.2022.143216

Cited by 29 publications

(5 citation statements)

References 36 publications

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“…This approach may eliminate deficiencies induced by fast solidification, refine microstructure grains, and enhance the mechanical characteristics of additively made components, such as fatigue, corrosion, and tensile properties [85,86]. Table 1 summarizes the frequently employed powders, as well as the improvements in microstructure and mechanical properties induced by ultrasonic treatments.…”

Section: Ultrasonic Vibration-assisted Additive Manufacturingmentioning

confidence: 99%

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Hybrid Laser Additive Manufacturing of Metals: A Review

Yue,

Zhang,

Zheng

et al. 2024

Coatings

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Due to the unparalleled benefits of traditional processing techniques, additive manufacturing technology has experienced rapid development and continues to expand its applications. However, as industrial standards advance, the pressing needs for high precision, high performance, and high efficiency in the manufacturing sector have emerged as critical bottlenecks hindering the technology’s progress. Single-laser additive manufacturing methods are insufficient to meet these demands. This review presents a comprehensive exploration of metal hybrid laser additive manufacturing technology, encompassing various aspects, such as multi-process hybrid laser additive manufacturing, additive–subtractive hybrid manufacturing, multi-energy hybrid additive manufacturing, and multi-material hybrid additive manufacturing. Through a thorough examination of the principles of laser additive manufacturing technology and the concept of hybrid manufacturing, this paper investigates in depth the notable advantages of hybrid laser additive manufacturing technology. It provides valuable insights and recommendations to guide the development and research of innovative machining technologies.

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Section: Ultrasonic Vibration-assisted Additive Manufacturingmentioning

confidence: 99%

“…Zhou H et al [86] investigated and compared the effects of static and alternating magnetic fields on the microstructure, weave, and mechanical properties of SS316L. Under static magnetic fields, the crystal texture of cellular dendrites along the building direction is suppressed.…”

Section: Electromagnetic-assisted Laser Additive Manufacturingmentioning

confidence: 99%

Hybrid Laser Additive Manufacturing of Metals: A Review

Yue,

Zhang,

Zheng

et al. 2024

Coatings

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“…The application of magnetic field-assisted additive manufacturing has demonstrated its capacity to enhance the density of printed samples while also mitigating the occurrence of cracking-a particularly prevalent issue when dealing with Alnico alloys, with the application of a 17.91 mT magnetic field density, which has increased from 98.54% to 99.17% in LPBF-fabricated 316L SS as in Figure 23 [105,107,109,110]. Magnetic fields in additive manufacturing exert a notable influence on the dynamics of the melt pool and the subsequent solidification process [110].…”

Section: Ndfeb+smfen Coercivity (Koe)mentioning

confidence: 99%

“…Figure 23. SEM microstructure of (a) AlSi10Mg without a magnetic field and with a 0.2 T magnetic field [110,111] and (b) density and microstructure of 316L SS without a magnetic field, with 17.91 mT and 0.39 mT magnetic fields [107,110].…”

Section: Ndfeb+smfen Coercivity (Koe)mentioning

confidence: 99%

Additively Manufactured Alnico Permanent Magnet Materials—A Review

Dussa,

Joshi,

Sharma

et al. 2024

Magnetism

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Additive manufacturing offers manufacturing flexibility for intricate components and also allows for precise control over the microstructure. This review paper explores the current state of the art in additive manufacturing techniques for Alnico permanent magnets, emphasizing the notable advantages and challenges associated with this innovative approach. Both the LPBF and L-DED processes have demonstrated promising results in fabricating Alnico with magnetic properties comparable with conventionally processed samples. The optimization of process parameters successfully reduced porosity and cracking in the LPBF processing of Alnico. The review further explored the significance of additive manufacturing process parameter optimization in managing the temperature gradient and solidification rate for a desired microstructure and enhanced magnetic properties. Other potential additive manufacturing methods suitable for the fabrication of Alnico were discussed, along with the challenges associated with the process. The insights provided also highlight how additive manufacturing holds the potential to replace post-processing techniques like solutionization, magnetic annealing, and tempering often necessary in Alnico production.

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“…(d) schematic diagram of thermal electromagnetic forceinduced dendrite breakage [17] ; (e) tensile stressstrain curves and mechanical properties of AlSi10Mg prepared by SLM with the assistance of 0, 0.1, 0.2 and 0.3 T magnetic fields [17] 1002306 -13 assisted SLM [143] ; (b) EBSD image of 316L alloy prepared under 0.4 mT, 300 Hz alternating magnetic field and no magnetic field [143] ; (c) solidification behavior of melt pool in synchronous electromagnetic inductionassisted LDED process [144] ; (d) micromorphology of TiC enhanced Ti6Al4V alloy with and without highfrequency electromagnetic field [144] 1002306 -14 assisted LDED [151] ; (b) micromorphology of IN718 prepared by LDED at different ultrasonic frequencies (0, 25, 33, 41 kHz) [153] ; (c) EBSD image of 316L alloy prepared by LDED with 20 kHz and without ultrasonic field [154] ; (d) OM diagram of 316L stainless steel fabricated by LDED with and without ultrasonic field assistance [156] 1002306 -16…”

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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The microstructure and properties evolution of SS316L fabricated by magnetic field-assisted laser powder bed fusion

Cited by 29 publications

References 36 publications

Hybrid Laser Additive Manufacturing of Metals: A Review

Hybrid Laser Additive Manufacturing of Metals: A Review

Additively Manufactured Alnico Permanent Magnet Materials—A Review

多场调控金属激光增材制造研究现状与展望（特邀）

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