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Mechanical properties and microstructure of powder metallurgy Ti-xNb-yMo alloys for implant materials

Nazari, Keivan A, Nouri, Alizera and Hilditch, Tim 2015, Mechanical properties and microstructure of powder metallurgy Ti-xNb-yMo alloys for implant materials, Materials and design, vol. 88, pp. 1164-1174, doi: 10.1016/j.matdes.2015.09.106.

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Title Mechanical properties and microstructure of powder metallurgy Ti-xNb-yMo alloys for implant materials
Author(s) Nazari, Keivan A
Nouri, Alizera
Hilditch, TimORCID iD for Hilditch, Tim orcid.org/0000-0003-0300-5774
Journal name Materials and design
Volume number 88
Start page 1164
End page 1174
Total pages 11
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015-12-25
ISSN 0264-1275
1873-4197
Keyword(s) Titanium alloys
Microstructure
Biomedical implant
Compressive behaviour
Powder metallurgy
Summary In this study, a series of Ti-xNb-yMo (x = 5-40 wt.% in 5 wt.% increments; and y = 3, 5, 10 wt%) alloys were fabricated by powder metallurgy and studied with respect to their microstructures, compressive mechanical properties and hardness. Increases in Nb and Mo content led to decreases in compressive and yield strengths, elastic modulus and hardness of the sintered alloys. Among the studied alloys, Ti-10Nb-3Mo alloy exhibited the optimum combination of strength and ductility. Alloys with a lower amount of Nb (≤ 25 wt.%) and Mo (≤ 5 wt.%) developed Widmanstätten structure, while further increase in Nb and Mo additions led to the microstructure predominantly consisting of β phase with varying regions of α + β phase. The effects of sintering temperature on elastic modulus and hardness were also investigated for Ti-xNb-3Mo alloys.
Language eng
DOI 10.1016/j.matdes.2015.09.106
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30080364

Document type: Journal Article
Collection: School of Engineering
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Citation counts: TR Web of Science Citation Count  Cited 9 times in TR Web of Science
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Created: Tue, 22 Dec 2015, 10:38:11 EST

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