Title

PROPERTIES OF CASES TREATED BY USING NEW HIGHTEMPERATURE VACUUM CARBURISATION TECHNOLOGY WITH THE PRE-NITRIDING – PRENiTLPC OPTION

Authorship

Kula, Piotr; Dybowski, Karol; Pietrasik, Ryszard; Olejnik, Jozef; Korecki, Maciej; Kreuzaler, Thomas

Kula, Piotr

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Dybowski, Karol

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Pietrasik, Ryszard

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Olejnik, Jozef

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Korecki, Maciej

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Kreuzaler, Thomas

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DOI

10.5151/1516-392X-26957

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Abstract

Vacuum carburising with pre-nitriding (PreNitLPC® technology) involves feeding ammonia during the charge heating stage before carburising. The purpose is to restrict the growth of grain in the surface layer of the carburised steel. The article presents the influence of nitrogen on restricting austenite grain growth during vacuum carburising and on mechanical properties (fatigue strength, impact resistance) of layers that underwent such treatment in comparison with traditional carburising methods.

Keywords

Thermo-chemical treatment, Vacuum carburising, Pre-nitriding, Carburising, Low pressure carburising

Low pressure carburising