Influence of a remelt scan strategy on the microstructure and fatigue behaviour of additively manufactured biomedical Ti65Ta efficiently assessed using small scale specimens

Erin G. Brodie, Julia Richter, Thomas Wegener, Andrey Molotnikov, Thomas Niendorf

Research output: Contribution to journalArticleResearchpeer-review

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Abstract

Due to its high cost and demanding characteristics, Tantalum requires unique processing techniques and is restricted to small parts. In the present work, Ti65Ta was additively manufactured as a new potential material for small biomedical implants. Assessment of the effects of a remelt scanning strategy was solely accomplished by testing of small mechanical specimens. Yield strength was achieved superior to either L-PBF pure Ti or Ta and low-cycle fatigue behaviour was similar to that of L-PBF Ti-6Al-4 V. The Ti65Ta alloy is a good candidate for a new gold standard alloy for small bone interfacing implants.

Original languageEnglish
Article number106944
Number of pages10
JournalInternational Journal of Fatigue
Volume162
DOIs
Publication statusPublished - Sep 2022

Keywords

  • Biomedical
  • Fatigue
  • Laser powder bed fusion
  • Tantalum
  • Titanium

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