Open AccessSynchrotron X‐ray CT characterization of titanium parts fabricated by additive manufacturing. Part II. Defects
Author(s) -
Scarlett Nicola Vivienne Yorke,
Tyson Peter,
Fraser Darren,
Mayo Sheridan,
Maksimenko Anton
Publication year - 2016
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577516008018
Subject(s) - synchrotron , beamline , materials science , titanium alloy , characterization (materials science) , titanium , alloy , welding , x ray , synchrotron radiation , cathode ray , metallurgy , beam (structure) , optics , nanotechnology , electron , physics , nuclear physics
Synchrotron X‐ray tomography (SXRT) has been applied to the study of defects within three‐dimensional printed titanium parts. These parts were made using the Arcam EBM ® (electron beam melting) process which uses powdered titanium alloy, Ti64 (Ti alloy with approximately 6%Al and 4%V) as the feed and an electron beam for the sintering/welding. The experiment was conducted on the Imaging and Medical Beamline of the Australian Synchrotron. The samples represent a selection of complex shapes with a variety of internal morphologies. Inspection via SXRT has revealed a number of defects which may not otherwise have been seen. The location and nature of such defects combined with detailed knowledge of the process conditions can contribute to understanding the interplay between design and manufacturing strategy. This fundamental understanding may subsequently be incorporated into process modelling, prediction of properties and the development of robust methodologies for the production of defect‐free parts.