Properties of Powder Metallurgy‐Fabricated Oxygen‐Containing Beta Ti–Nb–Mo–Sn–Fe Alloys for Biomedical Applications. Issue 3 (13th December 2019)

• Record Type: Journal Article
• Authors: Dehghan-Manshadi, Ali; Kent, Damon; StJohn, David; Dargusch, Matthew
• Is Part Of: Advanced engineering materials. Volume 22:Issue 3(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-12-13
• Subjects: biomedical alloys -- mechanical properties -- oxygen -- powder metallurgy -- titanium; Materials -- Periodicals; 620.11
• DOI: 10.1002/adem.201901229
• Languages: English
• ISSNs: 1438-1656

Abstract

Abstract : The influence of minor oxygen additions on the microstructure and mechanical properties of powder metallurgy (PM) fabricated Ti–25Nb–5Mo–3Sn–2Fe alloy is studied. The results demonstrate the positive influence of a certain oxygen content (0.35 wt%) on the microstructure and mechanical properties of sintered samples. Despite the presence of 7.0% porosity in the PM‐fabricated samples of Ti–25Nb–5Mo–3Sn–2Fe–0.35O, a high strength of 682 MPa, elongation of 7.2%, and Young's modulus of 74 GPa are obtained. The strength‐to‐modulus ratio of this alloy is higher than most common Ti biomedical alloys, indicating that this alloy may have better suitability for orthopedic applications. Deviation in the oxygen content of the alloy from 0.35 wt% negatively impacts on the ductility of the samples. Abstract : The influence of minor oxygen additions on the microstructure and mechanical properties of powder metallurgy fabricated Ti–25Nb–5Mo–3Sn–2Fe alloy is studied. The results demonstrate the positive influence of a certain oxygen content (0.35 wt%) on the microstructure and mechanical properties of sintered samples. Deviation in the oxygen content from 0.35 wt% negatively impacts on the ductility of the samples.