Effects of high-strain-rate deformation on magnetic hysteresis in high-tensile steels | Zendy

Ryo MORITA | Zendy; Satoru Kobayashi | Zendy; A.G. Odeshi | Zendy; Jerzy A. Szpunar | Zendy; Kodai Miura | Zendy; Yasuhiro Kamada | Zendy

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Effects of high-strain-rate deformation on magnetic hysteresis in high-tensile steels

Author(s) -

Ryo MORITA,

Satoru Kobayashi,

A.G. Odeshi,

Jerzy A. Szpunar,

Kodai Miura,

Yasuhiro Kamada

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4942824

Subject(s) - materials science , strain rate , microstructure , coercivity , ultimate tensile strength , magnetic hysteresis , hysteresis , deformation (meteorology) , composite material , anisotropy , strain (injury) , metallurgy , condensed matter physics , magnetization , magnetic field , optics , medicine , physics , quantum mechanics

We have studied a relationship between magnetic hysteresis and microstructures on high-tensile AISI 4340 steels after impact loading with a strain rate up to 2100 s−1 We find that coercivity, and minor-loop coefficient which is deduced from a power-law scaling between minor-loop parameters increase with strain rate, show a maximum at around a strain rate of 1400 s−1, followed by a decrease at a higher strain rate, associated with magnetic anisotropy with respect to impact direction. These observations are explained from the viewpoints of heat generation and heterogeneous microstructures characteristic to steels subjected to high strain rate deformation

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