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13-05-2023

Effect of Mo Additions on the Physical, Mechanical and Corrosion Properties of Commercially Pure Ti Fabricated by Metal Injection Moulding

Authors: Chanun Suwanpreecha, Sukrit Songkuea, Pranpreeya Wangjina, Makiko Tange, Wanida Pongsaksawad, Anchalee Manonukul

Published in: Metals and Materials International | Issue 11/2023

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Abstract

Ti-Mo alloys have received increasing attention for use in biomedical applications due to their non-toxic alloying elements, reasonable cost and suitable properties. In the present study, the effects of elemental Mo powder additions (5, 7.5, 10 and 15 wt%) on the physical, mechanical and corrosion properties in commercially pure Ti fabricated by metal injection moulding (MIM) and sintered at 1250 and 1350 °C were investigated. It was found that tensile strength increases with increasing Mo content mainly due to solid solution strengthening. However, the strain to failure of the alloys is variable and is influenced by the formation of TiCx, the relative sintered density and by impurities depending on the Mo content and sintering temperature. From the present study the optimum alloy is Ti-7.5Mo, sintered at 1250 °C for 2 h, which offers a satisfactory balance between suitable tensile properties, high relative density (> 96.5%), and excellent corrosion resistance in an artificial saliva environment. Ti-Mo alloys can also tolerate impurities up to 0.5 wt% (Oxygen equivalent, Oeq) without any significant reduction in ductility, which is a practical advantage for manufacturing and is attractive for biomedical applications.

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Metadata
Title
Effect of Mo Additions on the Physical, Mechanical and Corrosion Properties of Commercially Pure Ti Fabricated by Metal Injection Moulding
Authors
Chanun Suwanpreecha
Sukrit Songkuea
Pranpreeya Wangjina
Makiko Tange
Wanida Pongsaksawad
Anchalee Manonukul
Publication date
13-05-2023
Publisher
The Korean Institute of Metals and Materials
Published in
Metals and Materials International / Issue 11/2023
Print ISSN: 1598-9623
Electronic ISSN: 2005-4149
DOI
https://doi.org/10.1007/s12540-023-01454-2

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