NDLI: Microstructure and Properties of Plasma Source Nitrided AISI 316 Austenitic Stainless Steel

Content Provider	Springer Nature Link
Author	Li, G. Y. Lei, M. K.
Copyright Year	2016
Abstract	Plasma source nitriding is a relatively new nitriding technology which can overcome those inherent shortcomings associated with conventional direct current plasma nitriding technology such as the arcing surface damage, the edging effect and the hollow cathode effect. There is considerable study on the properties of nitrided samples for laboratorial scale plasma source nitriding system; however, little information has been reported on the industrial-scale plasma source nitriding system. In this work, AISI 316 austenitic stainless steel samples were nitrided by an industrial-scale plasma source nitriding system at various nitriding temperatures (350, 400, 450 and 500 °C) with a floating potential. A high-nitrogen face-centered-cubic phase (γ$_{N}$) formed on the surface of nitrided sample surface. As the nitriding temperature was increased, the γ$_{N}$ phase layer thickness increased, varying from 1.5 μm for the lowest nitriding temperature of 350 °C, to 30 μm for the highest nitriding temperature of 500 °C. The maximum Vickers microhardness of the γ$_{N}$ phase layer with a peak nitrogen concentration of 20 at.% is about HV $_{0.1 N}$ 15.1 GPa at the nitriding temperature of 450 °C. The wear and corrosion experimental results demonstrated that the γ$_{N}$ phase was formed on the surface of AISI 316 austenitic stainless steel by plasma source nitriding, which exhibits not only high wear resistance, but also good pitting corrosion resistance.
Starting Page	418
Ending Page	423
Page Count	6
File Format	PDF
ISSN	10599495
Journal	Journal of Materials Engineering and Performance
Volume Number	26
Issue Number	1
e-ISSN	15441024
Language	English
Publisher	Springer US
Publisher Date	2016-11-21
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	γ$_{N}$ phase austenitic stainless steel corrosion plasma source nitriding wear Characterization and Evaluation of Materials Tribology, Corrosion and Coatings Quality Control, Reliability, Safety and Risk Engineering Design
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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