Structure and properties of stainless steels after plasma immersion ion implantation and plasma nitriding

Citation
Hj. Spies et al., Structure and properties of stainless steels after plasma immersion ion implantation and plasma nitriding, MATER WERKS, 30(8), 1999, pp. 457-464
Citations number
11
Categorie Soggetti
Material Science & Engineering
Journal title
MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK
ISSN journal
09335137 → ACNP
Volume
30
Issue
8
Year of publication
1999
Pages
457 - 464
Database
ISI
SICI code
0933-5137(199908)30:8<457:SAPOSS>2.0.ZU;2-3
Abstract
Stainless steels can be nitrided at temperatures less than or equal to 400 degrees C to increase their hardness and wear resistance without a decreasi ng of their excellent corrosion resistance. Structure and properties of the surface layers produced by plasma nitriding and plasma immersion ion impla ntation in this temperature range were tested. There are negligible differe nces in the structure of the produced surface layers in spite of different interaction principles of the used technologies. However there are clear di fferences between the case of different steels. The case of ferritic chromi um steels mainly consists of E-nitride. Whereas the cases of austenitic and ferritic austenitic steels are characterized by expanded austenite. The co rrosion resistance of the steels is reduced by nitriding only, if evident C rN-formation occurs.