Peculiar Relationship of Plume Brightness and Hard Layer Formation in Atmospheric-Pressure Plasma Jet Nitriding

Irradiating the plume of atmospheric-pressure pulsed-arc plasma jet with nitrogen/hydrogen mixture gas enables to harden steel surface by nitrogen diffusion into steel. An important parameter is the hydrogen mixture ratio. Images of plasma-jet plume and formed hard layer for several hydrogen mixture...

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Bibliographic Details
Published inIEEE transactions on plasma science Vol. 42; no. 10; pp. 2466 - 2467
Main Authors Ichiki, Ryuta, Inoue, Takashi, Yoshimitsu, Yuki, Yamamoto, Hirofumi, Kanda, Shogo, Yoshida, Masashi, Akamine, Shuichi, Kanazawa, Seiji
Format Journal Article
LanguageEnglish
Published IEEE 01.10.2014
Subjects
Atmospheric-pressure plasmas
Brightness
Electrodes
Nitriding
pulsed-arc plasma jet
Steel
Surface discharges
surface hardening
Surface treatment
surface hardening
pulsed-arc plasma jet
Nitriding
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Summary:Irradiating the plume of atmospheric-pressure pulsed-arc plasma jet with nitrogen/hydrogen mixture gas enables to harden steel surface by nitrogen diffusion into steel. An important parameter is the hydrogen mixture ratio. Images of plasma-jet plume and formed hard layer for several hydrogen mixture ratios are presented.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2014.2311152