Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 616, Issue -, Pages 1-11Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2014.07.086
Keywords
Titanium alloys; Fracture; EBSD; Mechanical chracterization; Rapid solidification
Categories
Funding
- EPSRC [EP/I033335/2, EP/I033335/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/I033335/1, EP/I033335/2] Funding Source: researchfish
Ask authors/readers for more resources
Recent research on the additive manufacturing (AM) of Ti alloys has shown that the mechanical properties of the parts are affected by the characteristic microstructure that originates from the AM process. To understand the effect of the microstructure on the tensile properties, selective laser melted (SLM) Ti-6Al-4V samples built in three different orientations were tensile tested. The investigated samples were near fully dense, in two distinct conditions, as-built and stress relieved. It was found that the build orientation affects the tensile properties, and in particular the ductility of the samples. The mechanical anisotropy of the parts was discussed in relation to the crystallographic texture, phase composition and the predominant fracture mechanisms. Fractography and electron backscatter diffraction (EBSD) results indicate that the predominant fracture mechanism is intergranular fracture present along the grain boundaries and thus provide and explain the typical fracture surface features observed in fracture AM Ti-6Al-4V. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available