Effect of Si and Cr additions to carbon steel on material transfer in a steel/TiN coated tool sliding contact
2016 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 97, 337-348 p.Article in journal (Refereed) Published
A crossed cylinders sliding test, simulating the contact between the chip and the tool in machining, is used to evaluate material transfer and friction characteristics of a TiN coating against specifically designed model steels. These include one base reference, only alloyed with C (Base steel) and two alloyed also with 1 mass% Si or Cr. When sliding against the Base steel, an Fe-O layer is formed on the coating. Against the Si and Cr alloyed steels, Fe-Si-O and Fe-Cr-O layers are formed. In these oxides, Si and Cr are enriched, i.e. preferentially transferred from the steels. Compared to the Base steel, the friction coefficient is significantly lower against the Si alloyed steel and higher against the Cr alloyed steel.
Place, publisher, year, edition, pages
2016. Vol. 97, 337-348 p.
Transfer, Coating, Sliding
Research subject Engineering Science with specialization in Tribo Materials
IdentifiersURN: urn:nbn:se:uu:diva-284092DOI: 10.1016/j.triboint.2016.01.032ISI: 000374194900035OAI: oai:DiVA.org:uu-284092DiVA: diva2:920036