Evaluation of structure and magnetic properties of maraging steel powder feedstock for additive manufacturing of magnetic components
Autor: | R. Goswami, T.V. Jayaraman, G.V. Thotakura |
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Rok vydání: | 2020 |
Předmět: |
Materials science
Mechanical Engineering Metallurgy Metals and Alloys 02 engineering and technology Thermal treatment Raw material engineering.material Coercivity 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Lattice constant Mechanics of Materials Remanence Phase (matter) Martensite Materials Chemistry engineering 0210 nano-technology Maraging steel |
Zdroj: | Journal of Alloys and Compounds. 814:152296 |
ISSN: | 0925-8388 |
DOI: | 10.1016/j.jallcom.2019.152296 |
Popis: | We investigated the structure as well as the magnetic properties of a commercial maraging steel powder feedstock—EOS MS1—and elucidated the stability of supersaturated martensite phase upon thermal-treatment. The investigation unfolds the potential reusability/recyclability of the powder feedstock, which is essential from an economic as well as an environmental perspective in the manufacturing of magnetic components. The as-supplied powder feedstock predominantly constituted martensite (lattice parameter ∼0.2881 nm). The coercivity (HCI), remanence (MR), and magnetic saturation (MS) of the powder feedstock were estimated as 3.03 ± 0.12 kA/m, 1.4 ± 0.1 A m2/kg, and 176.0 ± 2.0 Am2/kg, respectively. The supersaturated martensite phase was stable during thermal treatment. The MS, MR, and HCI of the thermally-treated powders, on an average, were ∼1% more, ∼0.8 times less, and ∼0.9 times less, respectively, than the as-supplied powder feedstock: thermal-treatment marginally enhanced the soft-magnetic behavior. The similarities in the structure and the magnetic properties between the as-supplied and thermally-treated powders suggest that the powder feedstock is reusable/recyclable in the manufacturing of magnetic components. |
Databáze: | OpenAIRE |
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