Höganäs explores lower cost route to PM titanium components

July 9, 2014

July 9, 2014

Sweden’s Höganäs AB, one of the world’s leading ferrous powder producers, has been exploring the production of titanium powder for press and sinter applications using a process which, the company states, could reduce the cost of Powder Metallurgy titanium components by up to 75% compared with the use of atomised Ti powders.


Fig. 1 Press and sintered titanium gear wheel. As-sintered (left)

and green (right). (Photo courtesy Höganäs AB).


Robert Frykholm stated in his presentation “Ti Alloys in PM Applications” at the PM2014 World Congress, Orlando, USA, May 19-22, that Höganäs has been using a pilot powder production unit capable of producing 10 kg/day of hydrogenated Ti powder or hydrogenated pre-alloyed powder having particle size of 6 to 10 micron.

For alloying, a master alloy with composition of 60%Al/40% V and particle size of 6 µm was mixed with the fine TiH2 powder to achieve Ti-6Al-4V.

Because of the fine particle size, the powder was treated with a polymeric lubricant to improve flow properties for die compacting. The die pressed treated powder showed good surface quality, green density (87%) and green strength when warm compacted at 600 MPa. Sintering at 1300°C in H2 plus vacuum at 1300°C resulted in densities up to 99.5% TD and sufficient chemical purity.

In contrast to low levels of dimensional change experienced in ferrous PM parts, the sintered Ti parts saw linear shrinkage of 14% using the TiH2 as the base powder. Shrinkage was expected to be substantial during sintering because the molar volume of TiH2 is larger than that of Ti or Ti-6Al-4V. An example of a titanium gear wheel in the green and sintered states as shown in Fig. 1.

Frykholm stated that Höganäs plans to expand the TiH2 powder facility to around 60 kg/day and to carry out further development work on microstructures and mechanical properties.


Subscribe to our FREE e-newsletter

Register to receive our FREE e-newsletter and a complimentary digital subscription to Powder Metallurgy Review magazine:

Your email address:

Useful links: Download PM Review magazine | News headlines | Browse articles 

July 9, 2014

In the latest issue of PM Review…

Download PDF

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

  • Phoenix Sintered Metals: A story of transformation, growth and community from America’s PM heartland
  • World PM2024 Yokohama: The stage is set for the PM industry to find a path to sustainable growth
  • The state of Europe’s hard magnets industry and the challenge of optimising the mass production of Nd2Fe14B permanent magnets

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

Join our community

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
View online
Share via
Copy link