Effect of various surface treatments on the properties of nitrogen-saturated austenite layers produced on N27T2JMNb steel

Tomasz Borowski ,  Tadeusz Wierzchoń ,  Jerzy Jeleńkowski 

Warsaw University of Technology, Faculty of Materials Science and Engineering (InMat), Wołoska 141, Warszawa 02-507, Poland


Nitrogen-saturated austenite layers produced on practically carbon-free and chromium-free austenitic steel (metastable austenite) of the composition Fe-27Ni-2Ti-Mo-Al-Nb using glow discharge assisted nitriding. Prior to the nitriding, steel was subjected to surface treatments, such as grinding with a sand paper, burnishing, and cooling in liquid nitrogen, which result in martensite being formed in the surface layer. The paper compares the frictional wear resistance of the nitrided layers formed on steel with various structures: the initial structure after being subjected to grinding, a martensitic-austenitic structure formed by cooling in liquid nitrogen, and a structure subjected to cooling and then nitrided.

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Presentation: poster at E-MRS Fall Meeting 2005, Symposium B, by Tomasz Borowski
See On-line Journal of E-MRS Fall Meeting 2005

Submitted: 2005-06-09 11:45
Revised:   2009-06-07 00:44
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