Journal
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Volume 211, Issue 6, Pages 1146-1158Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jmatprotec.2011.01.018
Keywords
Additive layer manufacturing; Shaped metal deposition (SMD); Laser beam melting; Ti-6Al-4V; Ultimate tensile strength; High cycle fatigue
Funding
- European Commission [030953]
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The microstructure and the mechanical properties of Ti-6Al-4V components, fabricated by two different wire based additive layer manufacturing techniques, namely laser-beam deposition and shaped metal deposition, are presented. Both techniques resulted in dense components with lamellar alpha/beta microstructure. Large ultimate tensile strength values between 900 and 1000 MPa were observed. The strain at failure strongly depends on the orientation, where highest values up to 19% were obtained in direction of the building direction. Heat treatment increased the highest strain at failure up to 22%. The fatigue limit was observed to be higher than 770 MPa. (C) 2011 Elsevier B.V. All rights reserved.
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