4.6 Article

Influence of Colloidal Additivation with Surfactant-Free Laser-Generated Metal Nanoparticles on the Microstructure of Suction-Cast Nd-Fe-B Alloy

Related references

Note: Only part of the references are listed.
Article Engineering, Manufacturing

High-coercivity copper-rich Nd-Fe-B magnets by powder bed fusion using laser beam method

Olivier Tosoni et al.

Summary: Additive manufacturing (AM) is a promising method for efficiently utilizing rare-earth elements in complex-shaped magnets. This study developed a close-to-industrial process to produce a narrow-distributed Nd-Fe-B powder and used it to build magnets using powder bed fusion with laser beam. After optimization and annealing, the magnets displayed excellent magnetic properties.

ADDITIVE MANUFACTURING (2023)

Article Chemistry, Multidisciplinary

A Novel Magnetic Hardening Mechanism for Nd-Fe-B Permanent Magnets Based on Solid-State Phase Transformation

Lukas Schaefer et al.

Summary: A novel magnetic hardening mechanism is described, where modified Nd-Fe-B alloys undergo a solid-state phase transformation to increase coercivity. The presence of FeMo2B2 precipitates after thermal treatment refines the Nd2Fe14B grains and further enhances coercivity.

ADVANCED FUNCTIONAL MATERIALS (2023)

Review Materials Science, Multidisciplinary

Powder-Based Additive Manufacturing: A Critical Review of Materials, Methods, Opportunities, and Challenges

Rajinth Shanthar et al.

Summary: As a 0D material, powder particles have the potential to manufacture complex engineering components through additive manufacturing (AM) methods. However, challenges like limited categories, temperature constraints, and subpar performance of molded components persist in powder-based AM. Therefore, it is crucial to conduct research on new materials and procedures for AM. This comprehensive review focuses on the most widely used powder-based AM methods and materials, summarizing their development, operating principles, limitations, and future prospects. The review also delves into material classification, properties, preparation methods, and the compatibility with powder methods, while presenting industrial and commercial applications of powder-based AM. Lastly, the current limitations of powder-based technologies are highlighted, accompanied by prospects for the future of this field.

ADVANCED ENGINEERING MATERIALS (2023)

Article Materials Science, Multidisciplinary

On the Impact of Additive Manufacturing Processes on the Microstructure and Magnetic Properties of Co-Ni-Ga Shape Memory Heusler Alloys

Franziska Scheibel et al.

Summary: Microstructure design is crucial for the performance of Co-Ni-Ga shape memory alloys, and additive manufacturing techniques can optimize grain boundary configurations and improve transformation behavior. DED-processed Co-Ni-Ga exhibits similar transformation and magnetization behavior as single-crystalline material, making it a promising candidate for future applications.

ADVANCED ENGINEERING MATERIALS (2022)

Article Chemistry, Physical

Use of Fumed Silica Nanostructured Additives in Selective Laser Melting and Fabrication of Steel Matrix Nanocomposites

Hwee Kang Koh et al.

Summary: The advancement of additive manufacturing for metal matrix nanocomposites has attracted great attention due to their potential improvement of physical and mechanical performance.

MATERIALS (2022)

Article Materials Science, Multidisciplinary

Microstructure formation and mechanical properties of ODS steels built by laser additive manufacturing of nanoparticle coated iron-chromium powders

C. Donate-Buendia et al.

Summary: The study compares the performance of ODS steels prepared with yttrium oxide nanoparticles using dielectrophoretic controlled adsorption under different manufacturing techniques. LPBF samples demonstrated better mechanical response and more homogeneous distribution of nanoparticles compared to DED samples.

ACTA MATERIALIA (2021)

Article Materials Science, Multidisciplinary

On the selection and design of powder materials for laser additive manufacturing

Carlos Donate-Buendia et al.

MATERIALS & DESIGN (2021)

Article Nanoscience & Nanotechnology

Synthesis of gold, platinum, and gold-platinum alloy nanoparticle colloids with high-power megahertz-repetition-rate lasers: the importance of the beam guidance method

Friedrich Waag et al.

Summary: Noble metal nanoparticles and their alloys are important for biomedicine and catalysis, and laser ablation in liquids is a method used to access high-purity colloids, although current productivity may hinder industrial implementation. Innovative laser technology may help distribute this method further. A comparison of galvanometer scanning and polygon-wheel scanning found that the scan pattern dimensions are crucial, with a threshold pattern length determining the more productive technology. Gold ablation had lower productivity compared to platinum, but alloying gold with 10% platinum improved productivity to nearly the same level as pure platinum.

APPLIED NANOSCIENCE (2021)

Article Chemistry, Analytical

Additive Manufacturing of Bulk Nanocrystalline FeNdB Based Permanent Magnets

Dagmar Goll et al.

Summary: Lab scale additive manufacturing of Fe-Nd-B based powders was used to produce bulk nanocrystalline Fe-Nd-B based permanent magnets, achieving good magnetic properties.

MICROMACHINES (2021)

Article Chemistry, Multidisciplinary

Design and Qualification of Pr-Fe-Cu-B Alloys for the Additive Manufacturing of Permanent Magnets

Lukas Schaefer et al.

Summary: This study demonstrates the development of high coercivity in Pr21Fe73.5Cu2B3.5 and Nd21Fe73.5Cu2B3.5 alloys through the use of suction casting technique, conventional L-PBF processing, and subsequent annealing treatment. The resulting microstructure consists of hard magnetic grains embedded in a matrix phase, with Pr21Fe73.5Cu2B3.5 exhibiting higher coercivity due to a finer grain size distribution of the Pr2Fe14B phase.

ADVANCED FUNCTIONAL MATERIALS (2021)

Article Chemistry, Physical

Nanoparticle Tracing during Laser Powder Bed Fusion of Oxide Dispersion Strengthened Steels

Yangyiwei Yang et al.

Summary: The control of nanoparticle agglomeration during the fabrication of oxide dispersion strengthened steels is crucial for maximizing their mechanical and high temperature reinforcement properties. A simulation scheme is proposed to track the drift and interactions of nanoparticles in the melt pool during laser powder bed fusion, providing statistical and graphical demonstration of the temporal and spatial variations of the traced nanoparticles.

MATERIALS (2021)

Review Materials Science, Multidisciplinary

Additive manufacturing of magnetic materials

V. Chaudhary et al.

PROGRESS IN MATERIALS SCIENCE (2020)

Review Chemistry, Multidisciplinary

Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications

Enza Fazio et al.

NANOMATERIALS (2020)

Article Materials Science, Multidisciplinary

Cooling rate evaluation during solidification in the suction casting process

Tomasz Koziel et al.

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T (2020)

Article Materials Science, Multidisciplinary

Coercivity enhancement of selective laser sintered NdFeB magnets by grain boundary infiltration

Christian Huber et al.

ACTA MATERIALIA (2019)

Article Materials Science, Multidisciplinary

Effects of Ag on the magnetic and mechanical properties of sintered NdFeB permanent magnets

H. Chen et al.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS (2019)

Review Materials Science, Multidisciplinary

Additive manufacturing of metallic components - Process, structure and properties

T. DebRoy et al.

PROGRESS IN MATERIALS SCIENCE (2018)

Article Multidisciplinary Sciences

3D printing of high-strength aluminium alloys

John H. Martin et al.

NATURE (2017)

Article Materials Science, Multidisciplinary

Net Shape 3D Printed NdFeB Permanent Magnet

Jacim Jacimovic et al.

ADVANCED ENGINEERING MATERIALS (2017)

Review Chemistry, Multidisciplinary

Laser Synthesis and Processing of Colloids: Fundamentals and Applications

Dongshi Zhang et al.

CHEMICAL REVIEWS (2017)

Review Materials Science, Multidisciplinary

Metal Additive Manufacturing: A Review

William E. Frazier

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2014)

Article Materials Science, Multidisciplinary

An Experimental Investigation into Additive Manufacturing-Induced Residual Stresses in 316L Stainless Steel

Amanda S. Wu et al.

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2014)

Review Chemistry, Multidisciplinary

Magnetic Materials and Devices for the 21st Century: Stronger, Lighter, and More Energy Efficient

Oliver Gutfleisch et al.

ADVANCED MATERIALS (2011)

Article Materials Science, Multidisciplinary

Interaction domains in die-upset NdFeB magnets in dependence on the degree of deformation

K. Khlopkov et al.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS (2004)

Article Engineering, Electrical & Electronic

Memory of texture during HDDR processing of NdFeB

O Gutfleisch et al.

IEEE TRANSACTIONS ON MAGNETICS (2003)

Article Engineering, Electrical & Electronic

Magnetic properties and microstructure of NdFeB sintered magnets by the addition of Ag powder

TS Zhao et al.

IEEE TRANSACTIONS ON MAGNETICS (2000)