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Ferri, O. M.
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Publications (8/8 displayed)
- 2016Axial fatigue testing of Ti–6Al–4V using an alternative specimen geometry fabricated by metal injection mouldingcitations
- 2012From Titanium to Magnesium - Processing by Advanced Metal Injection Mouldingcitations
- 2012From titanium to magnesium: processing by advanced metal injection mouldingcitations
- 2012Metal Injection Moulding of Titanium and Titanium-Aluminidescitations
- 2011Ti–6Al–4V–0.5B—A Modified Alloy for Implants Produced by Metal Injection Moldingcitations
- 2011The Influence of a Small Boron Addition on the Microstructure and Mechanical Properties of Ti-6Al-4V Fabricated by Metal Injection Mouldingcitations
- 2010Influence of Surface Quality and Porosity on Fatigue Behaviour of Ti-6Al-4 V Components Processed by MIMcitations
- 2009High cycle fatigue behaviour of Ti–6Al–4V fabricated by metal injection moulding technologycitations
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article
Axial fatigue testing of Ti–6Al–4V using an alternative specimen geometry fabricated by metal injection moulding
Abstract
The hourglass-shaped specimen, which is commonly used for axial fatigue testing, cannot be easily fabricated by metal injection moulding. Consequently, this work aimed at evaluating the performance of an alternative specimen (dog bone geometry) for fatigue characterisation. Additionally, an effort towards the assessment of the fatigue damage with specimens fatigued until halflife was made. The alloy used in this study, serving as an example for the test validation, was Ti–6Al–4V. The feasibility of using the specimens for fatigue testing was confirmed with a narrow scatterband, however, only in the range of 105 cycles. The crack initiation sites were always found on the surface associated with quasi cleavage facets. Specimens fatigued until halflife showed a decrease in ductility in conventional tensile testing; nonetheless, the ultimate tensile strength remained unchanged.