Production and characterization of mechanical properties of Ti-Nb-Ta-Mn alloy foams for biomedical applications

C. Guerra, C. Aguilar, D. Guzmán, P. A. Rojas, S. Lascano, L. Perez

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Development of titanium foams as an implant with low Young's modulus has brought the scientific and technological attention. Titanium based alloys were produced by mechanical alloying using a planetary mill. This work study the effect of Manganese (Mn) on mechanical properties in compression of Ti-13%Ta-30%Nb-x%Mn (x: 2 and 6 wt.%) foam. Foams were obtained using ammonium hydrogen carbonate (50%v/v) as space-holder with a mean particle size of 35 μm. Powders and space-holder were mixed and uniaxial pressing was performed at 430 MPa of compaction pressure. To remove the space holder from the matrix the green compacts were heated to 180°C for 1.5 h and sintered at 1300°C for 4 h in Ar atmosphere. The Young?s Modulus of this foam is smaller when compared with pure Ti , and the yield strength is increased with the amount of Mn increases. Finally, the Gibson-Ashby, Meyer and Nielsen Models were applied to predict the mechanical properties of titanium foams.

Original languageEnglish
Title of host publicationEuro PM 2014 Congress and Exhibition, Proceedings
PublisherEuropean Powder Metallurgy Association (EPMA)
ISBN (Electronic)9781899072446
StatePublished - 2014
EventEuro PM 2014 International Conference and Exhibition - Salzburg, Austria
Duration: 21 Sep 201424 Sep 2014

Publication series

NameEuro PM 2014 Congress and Exhibition, Proceedings

Conference

ConferenceEuro PM 2014 International Conference and Exhibition
Country/TerritoryAustria
CitySalzburg
Period21/09/1424/09/14

Keywords

  • Biomedical materials
  • Metal foams
  • Powder metallurgy
  • Ti-based alloys
  • XRD

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