Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 666, Issue -, Pages 43-47Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2016.04.012
Keywords
Electron microscopy; Mechanical characterization; Orientation relationships; Titanium alloys
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Funding
- U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
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Additive manufacturing processes such as direct metal laser melting (DMLM) are known to produce highly anisotropic microstructures. The present work compares the microstructure and mechanical properties of DMLM Ti-6Al-4V with that of mill-annealed alloys. Results show that the yield and hardening response of DMLM Ti-6Al-4V does not depend on the testing direction relative to the build direction, while the response of mill-annealed Ti-6Al-4V strongly depends on the testing direction. These results are discussed in light of the microstructure, texture, and polycrystal plasticity modeling. (C) 2016 Elsevier B.V. All rights reserved.
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