Magnetism induced by electrochemical nitriding on an austenitic stainless steel | Zendy

Takashi Watanabe | Zendy; A. Sagara | Zendy; Yoshimitsu Hishinuma | Zendy; Sadatsugu Takayama | Zendy; Teruya Tanaka | Zendy; Saburo Sano | Zendy

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Magnetism induced by electrochemical nitriding on an austenitic stainless steel

Author(s) -

Takashi Watanabe,

A. Sagara,

Yoshimitsu Hishinuma,

Sadatsugu Takayama,

Teruya Tanaka,

Saburo Sano

Publication year - 2015

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4919112

Subject(s) - nitriding , materials science , magnetization , ferromagnetism , metallurgy , austenite , magnetism , magnetic anisotropy , alloy , magnetic moment , nitrogen , magnetic shape memory alloy , condensed matter physics , magnetic field , composite material , chemistry , microstructure , layer (electronics) , physics , organic chemistry , quantum mechanics

The surface of a Fe-Ni-Cr Alloy (SUS316L) plate was electrochemically nitrided in molten LiF-KF salt including Li3N at 873K. The crystal structure changed from fcc structure to bct structure with nitrogen introduction. The Nitrogen diffusion layers were predominately formed at nitrogen concentration of 23 at%. The nitriding process drastically also changed its magnetic property from non-magnetic to ferromagnetic. The magnetic field of 20 kOe saturated the magnetic moment with its magnetization of 81 emu/g at 10K. The anisotropic magnetization is ascertained. Based on CrN formation and Cr extraction from the original Fe-Ni-Cr system, the induced ferromagnetism was discussed

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