Research yields positive results for Electron Beam AM of molybdenum

MaterialsNewsResearch
April 14, 2021

April 14, 2021

ORNL researchers used Electron Beam Powder Bed Fusion to produce refractory metal molybdenum, which remained crack free and dense, proving its viability for Additive Manufacturing applications (Courtesy ORNL/US Dept of Energy)

Researchers at Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee, USA, recently used Electron Beam Powder Bed Fusion (PBF-EB) to produce parts from molybdenum titanium carbide, a refractory metal alloy, and found that the material could be both crack free and dense when produced by PBF-EB. These findings indicate the material’s viability for Additive Manufacturing.

Molybdenum (Mo) and its associated alloys are difficult to process through traditional manufacturing because of their high melting temperatures, reactivity with oxygen and brittleness. To address these shortcomings, the team formed a Mo metal matrix composite by mixing molybdenum and titanium carbide powders. At Oak Ridge National Laboratory, an electron beam was used to melt the mixture, offering the ability to control the cooling rate, thereby optimising performance.

“Our results showed that fabrication from a mechanically alloyed metal matrix composite powder is feasible,” stated ORNL researcher Mike Kirka. “The structures formed by the fused powders can withstand high temperatures, indicating that molybdenum and its alloys can be used for aerospace and energy conversion applications.”

www.ornl.gov

MaterialsNewsResearch
April 14, 2021

About Metal Additive Manufacturing magazine

Metal AM magazine, published quarterly in digital and print formats, is read by a rapidly expanding international audience.

Our audience includes component manufacturers, end-users, materials and equipment suppliers, analysts, researchers and more.

In addition to providing extensive industry news coverage, Metal AM magazine is known for exclusive, in-depth articles and technical reports.

Our focus is the entire metal AM process from design to application.

Each issue is available as an easy-to-navigate digital edition and a high-quality print publication.

In the latest issue of Metal AM magazine

Download PDF
 

Extensive AM industry news coverage, as well as the following exclusive deep-dive articles:

  • BMW Group: Laying the foundations for the application of metal Additive Manufacturing in the automotive industry
  • Predicting the metal Additive Manufacturing market – and breaking the hype cycle
  • China’s thriving metal Additive Manufacturing industry: An outsider’s perspective
  • Enhancing the productivity of Additive Manufacturing facilities through PBF-LB automation
  • Award-winning metal AM parts from the MPIF’s 2024 Design Excellence Awards
  • Performance of eddy currents for the in-situ detection of defects during PBF-LB metal AM

The world of metal AM to your inbox

Don't miss any new issue of Metal AM magazine, and get the latest industry news. Sign up to our twice weekly newsletter.

Sign up

Looking for AM machines, metal powders or part manufacturing services?

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

  • AM machines
  • Process monitoring & calibration
  • Heat treatment & sintering
  • HIP systems & services
  • Pre- & post-processing technology
  • Powders, powder production and analysis
  • Part manufacturers
  • Consulting, training & market data
View online

Discover our magazine archive…

The free to access Metal Additive Manufacturing magazine archive offers unparalleled insight into the world of metal Additive Manufacturing from a commercial and technological perspective through:

  • Reports on visits to leading metal AM part 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

Share via
Copy link
Powered by Social Snap