Erosion–corrosion and corrosion properties of DLC coated low temperature Erosion–corrosion and corrosion properties of DLC coated low temperature

Morten Stendahl Jellesen, Thomas Christiansen, Lisbeth Rischel Hilbert, Per Møller

Research output: Contribution to journalJournal articlepeer-review

Abstract

Lowtemperature nitriding of stainless steel leads to the formation of a surface zone of so-called expanded austenite, i.e. by dissolution of large amounts of nitrogen in solid solution. In the present work the possibility of using nitrogen expanded austenite “layers” obtained by gaseous nitriding of AISI 316 as substrate for DLC coatings are investigated. Corrosion and erosion–corrosion measurements were carried out on low temperature nitrided stainless steel AISI 316 and on low temperature nitrided stainless steel AISI 316 with a top layer of DLC. The combination of DLC and low temperature nitriding dramatically reduces the amount of erosion–corrosion of stainless steel under impingement of particles in a corrosive medium.
Original languageEnglish
JournalWear
Volume06
Issue number038
ISSN0043-1648
DOIs
Publication statusPublished - 2009

Keywords

  • Stainless steel
  • DLC coatings
  • Erosion–corrosion
  • Expanded austenite

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