Micromechanical Characterization of Additively Manufactured Ti-6Al-4V Parts Produced by Electron Beam Melting

Ti-6Al-4V is one of the most promising alloys for electron beam melting (EBM) of structural parts due to its outstanding properties and its extensive use in the aerospace, automotive, and energy industries. In this study, we report a detailed and systematic micromechanical characterization of additi...

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Bibliographic Details
Published in:JOM (1989) 2021-10, Vol.73 (10), p.3021-3033
Main Authors: Özerinç, Sezer, Kaygusuz, Burçin, Kaş, Mustafa, Motallebzadeh, Amir, Nesli, Şafak, Duygulu, Özgür, Yilmaz, Oguzhan
Format: Article
Language:English
Subjects:
Additive manufacturing
Aerospace industry
Alloys
Chemistry/Food Science
Earth Sciences
Electron beam melting
Engineering
Environment
Frictional wear
Investigations
Ion beams
Manufacturers
Manufacturing
Mechanical properties
Microhardness
Nanoindentation
Physics
Scanning electron microscopy
Scratch resistance
Size effects
Sliding friction
Strain rate sensitivity
Stress state
Technical Article
Titanium base alloys
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Summary:Ti-6Al-4V is one of the most promising alloys for electron beam melting (EBM) of structural parts due to its outstanding properties and its extensive use in the aerospace, automotive, and energy industries. In this study, we report a detailed and systematic micromechanical characterization of additively manufactured Ti-6Al-4V parts produced via EBM. The specimens were characterized by microhardness, nanoindentation, micropillar compression, and microscratch measurements. The results show that the Ti-6Al-4V exhibits a strong indentation size effect and higher strain rate sensitivity compared to those obtained from macroscale measurements. The high scratch resistance and the high hardness of the alloy at small indentation depths suggest that the EBM-produced Ti-6Al-4V parts can provide good performance in service under sliding wear conditions.
ISSN:1047-4838
1543-1851
DOI:10.1007/s11837-021-04804-w