Research highlights benefit of molybdenum on Ti-Al-N coated tool wear resistance

March 3, 2018

Research highlights benefit of molybdenum on Ti-Al-N coated tool wear resistance

 

According to Plansee, laboratory tests carried out at the Vienna University of Technology, in the course of developing new PVD coatings for wear-protection applications, have proven that the use of molybdenum alloys significantly reduces wear during machining.

The service life of tools and coatings used in a wide variety of cutting processes is determined by wear such as adhesion and abrasion. Increasing the hardness is generally an effective approach to minimising abrasive wear, but Plansee states that this solution only works for a specific range of applications, and has no effect on those wear mechanisms that are related to adhesion.

In order to improve tool wear resistance and lifespan, Plansee, Oerlikon Surface Solutions AG and the University of Technology Vienna (TU Wien)’s Institute of Materials Science and Technology, have conducted a research programme into the effect of molybdenum on the wear behaviour of arc-evaporated Ti-Al-N coatings. The research was conducted at one of TU Wien’s Christian Doppler laboratories.

According to Plansee, the findings clearly showed that in situ formation of solid, self-lubricating phases such as MoO3 led to a significant reduction in adhesive and abrasive wear. The use of targets produced using powder metallurgical methods (Plansee Composite Materials GmbH) allowed the deposition of single-phase, face-centred cubic coatings with a Mo content of up to 12 at.%. This high alloy content also had a very positive impact during wear tests up to 700 °C.

Stefan A Glatz, Vincent Moraes, Christian M Koller and Helmut Riedl have released details of the research findings in a paper titled ‘Effect of Mo on the thermal stability, oxidation resistance, and tribomechanical properties of arc evaporated Ti-Al-N coatings’, published in the American Vacuum Society’s Journal of Vacuum Science and Technology and available to download here.

www.plansee.com

www.oerlikon.com

wwwt.tuwien.ac.at

Powder Metallurgy Review magazine cover

In the latest issue of PM Review…

Download PDF

Extensive Powder Metallurgy industry news coverage, and the following exclusive deep-dive articles and reports:

  • Hot Isostatic Pressing for the production of large, near-net shape components
  • Safeguarding PM part usage in a new automotive industry
  • How to make metal powders., Part 3
  • Company profile: Jiangxi Yuean Advanced Materials

The latest news from the world of metal powders, delivered to your inbox

Don't miss any new issue of PM Review, and get the latest industry news. Sign up to our weekly newsletter.

Sign up

From the industry…

Discover our magazine archive…

The free-to-access PM Review magazine archive offers unparalleled insight into the world of Powder Metallurgy from a commercial and technological perspective through:

  • Reports on visits to leading PM part manufacturers, metal powder manufacturers and industry suppliers
  • Articles on technology and application trends
  • Information on materials developments
  • Reviews of key technical presentations from the international conference circuit
  • International industry news

All past issues are available to download as free PDFs or view in your browser.

 

Browse the archive

 

Looking for PM production equipment, metal powders, R&D support and more?

Discover suppliers of these and more in our
advertisers’ index and buyer’s guide, available in the back of PM Review magazine.

  • Powders & materials
  • Powder process, classification & analysis
  • PM products
  • Atomisers & powder production technology
  • Compaction presses, tooling & ancillaries
  • Sintering equipment & ancillaries
  • Post-processing
  • Consulting & toll sintering
Download PDF
Share via
Copy link