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Author Cho, Hyo Suk ♦ Bell, Tom
Source SpringerLink
Content type Text
Publisher The Korean Institute of Metals and Materials
File Format PDF
Copyright Year ©2002
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword treatment time ♦ sputtering ♦ oxynitride ♦ Metallic Materials ♦ Operating Procedures, Materials Treatment ♦ Magnetism, Magnetic Materials ♦ Engineering Thermodynamics, Heat and Mass Transfer ♦ Characterization and Evaluation of Materials ♦ Continuum Mechanics and Mechanics of Materials
Abstract Plasma nitrocarburising was carried out in a CO gas atmosphere with 3 mbar at 570°C for various times to investigate the effect of treatment time on the structure of the compound layer. The compound layers produced were composed of mainly the γ' phase for a slow cooled specimen and mixed γ'/ε phases for a fast cooled specimen during the initial stage. With the increasing of the treatment time up to 10 hours, the proportion of the ε phase relative to the γ' phase in the compound layer and the compound layer thickness were increased. When the treatment time was further increased to 30 hours, an anomalous phenomenon was observed: the ε phase was not stabilised and the compound layer thickness was decreased. It was found that the anomalous compound layer growth is associated with the removal of surface material by sputtering or the formation of oxynitride.
ISSN 15989623
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2002-01-01
Publisher Place Seoul
Journal Metals and Materials
Volume Number 8
Issue Number 1
Page Count 4
Starting Page 99
Ending Page 102


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Source: SpringerLink