期刊
JOURNAL OF SYNCHROTRON RADIATION
卷 23, 期 -, 页码 1015-1023出版社
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S1600577516008018
关键词
additive manufacturing; titanium; X-ray tomography
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 EBM1 (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.
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