|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Metals: Establishing Location Specific, Processing-Microstructure-Property-Relationships III
||Deformation Mechanisms of SLM 316L Stainless Steels and Ti-6Al-4V Alloys
||Thomas Voisin, Joseph T. McKeown, Jianchao Ye, Nicholas P Calta, Ross Cunningham, Anthony Rollett, Melissa Santala, Morris Y. Wang
|On-Site Speaker (Planned)
316L stainless steels (316L SS) and Ti-6Al-4V alloys made by selective laser melting (SLM) have been widely characterized in term of microstructures and mechanical properties. Very high yield strengths have been reported for both as-SLM alloys. Although the as-SLM 316L SS offers a high strain-to-failure, usually around 40%, the as-SLM Ti-6Al-4V is limited to around 10%. The present work aims to identifying several mechanisms involved during tensile testing in both as-SLM alloys. Using standard mechanical testing, microscopy (TEM, SEM), and X-ray synchrotron (in situ diffraction and tomography), we investigate and report the deformation mechanisms of these two types of materials with a special emphasis on the role the cellular structure in as-SLM 316L SS and the porosity in as-SLM Ti64. This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
||Planned: Supplemental Proceedings volume