Influence of scanning strategy on magnetic properties of 630 stainless steel fabricated by directed energy deposition method

We investigated how the scanning strategy (SS) influences the magnetic properties of ferromagnetic metal specimens additively manufactured using 630 stainless steel powder and a directed energy deposition machine. The magnetization curves were measured by using B and H coils and a magnetic flux mete...

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Veröffentlicht in:AIP advances 2024-01, Vol.14 (1), p.015129-015129-5
Hauptverfasser: Kinoshita, K., Sakamoto, M., Imatani, S.
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description We investigated how the scanning strategy (SS) influences the magnetic properties of ferromagnetic metal specimens additively manufactured using 630 stainless steel powder and a directed energy deposition machine. The magnetization curves were measured by using B and H coils and a magnetic flux meter. The specific saturation magnetization, coercivity, and specific magnetic susceptibility were calculated from the magnetization curves obtained. Moreover, the martensite fraction, magnetization structure, and martensite structure were measured and visualized using X-ray diffraction, the Bitter method, and electron backscatter diffraction, respectively. The magnetic properties and martensite fraction depended on the SS, and magnetic poles were generated in each sub-block structure. Furthermore, a numerical analysis using a magnetic micromechanics model indicated that the variation in the martensite structure due to the SS produced differences in the magnetic properties.
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subjects Coercivity
Deposition
Electron backscatter diffraction
Ferromagnetism
Magnetic flux
Magnetic permeability
Magnetic poles
Magnetic properties
Magnetic saturation
Magnetization curves
Martensite
Micromechanics
Numerical analysis
Stainless steels
title Influence of scanning strategy on magnetic properties of 630 stainless steel fabricated by directed energy deposition method
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