Influence of Nitrogen Alloying on Galling Properties of PM tool steels
2002 (English)In: -, 216-226 p.Article in journal (Refereed) Published
The objective of this study is to investigate the effect of nitrogen alloying of tool steels on their galling properties. Nitrogen is introduced to the steel composition by solid state nitriding with ammonia gas at 550-600 oC. The base material composition is in powder form during nitriding. Different nitrogen contents are experimented. The hard phases present in steel composition are of type M(C,N) and M6C. The materials are consolidated by HIP process. Galling behaviour of the produced alloys is evaluated with slider-on-sheet tribological test method. As a reference for nitrogen alloyed compositions various PM tool steel grades and CVD coated tool steels are chosen. The ability of the test materials to avoid formation of galling adherants is tested against AISI 304 stainless steel with a low viscose lubricant. The test results show that nitrogen alloying increases manifold resistance against galling reaching equal behaviour as for CVD coated tool steels.
Place, publisher, year, edition, pages
Karlstad: Karlstads universitet, 2002. 216-226 p.
carbonitride, PM tool steel, nitriding, galling, stainless steel
Research subject Engineering Science with specialization in Tribo Materials
IdentifiersURN: urn:nbn:se:uu:diva-198744OAI: oai:DiVA.org:uu-198744DiVA: diva2:617640
6th International Tooling ConferenceKarlstad 10-13 September 2002