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Current Status of Nitrocarburising Surface Heat Treatment

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Nitrocarburising, a surface heat treatment of steels, has been widely recognized in steel manufacturing industries to improve scuffing resistance and fatigue resistance of the steel components. Several techniques of diffusing nitrogen and carbon into the surface of steel are categorised by use of salt bath, gaseous, and glow discharge atmospheres, The formation of iron carbonitride (Fe2_3N, C) compound layer and the sub-surface nitrogen diffusion zone are the objectives of the treatment to improve the above properties. In the present discussion, the current status of the nitrocarburising treatment will be highlighted in relation to industrial applications, basic principle of each processing methodss and state of the arts of the compound layer's development. The emerging austenitic nitrocarburising as an alternative to ferritic nitrocarburising will be discussed on their industrial acceptance. It is concluded that nitrocarburising has gained commercial establishment due to its advantages offering less peometrical distortion to the components, lower cost relatives to other surface treatments, and particularly used to impart wear properties of low grade steels, such as carbon and mild steels. Automotive parts, textile machineries, and tools and dies are the examples of components treated by nitrocarburising.

Keywords
Nitrocarburising, iron carbonitride, process development, and industrial applications.

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Detail Information

Series Title

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Publisher

Surabaya : SEAISI., 2004

Collation

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Language

English

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Edition

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Subject(s)

Nitrocarburising
iron carbonitride

Specific Detail Info

2nd international Conference and Annual Meeting South East Asia Iron and Steel Institute. Surabaya, 1-3 November 2004

Statement of Responsibility

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