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Publication Citation: Physical and chemical characterization techniques for metallic powders

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Author(s): John A. Slotwinski; Paul E. Stutzman; Stephanie S. Watson; Edward J. Garboczi; Max A. Peltz; Chiara F. Ferraris;
Title: Physical and chemical characterization techniques for metallic powders
Published: August 28, 2013
Abstract: Systematic studies have been done on two different powder materials used for additive manufacturing: stainless steel and cobalt-chrome. An extensive array of characterization techniques were applied to these two powders. The physical techniques included laser diffraction particle size analysis, X-ray computed tomography for size and shape analysis, and optical and scanning electron microscopy. Techniques sensitive to chemistry, including X-ray diffraction, elemental analysis using the X-rays generated during scanning electron microscopy, and X-ray photoelectron spectroscopy, were also employed. The background of these techniques will be summarized and some typical findings on virgin additive manufacturing powders will be given.
Conference: QNDE 2013
Proceedings: Proceedings of QNDE 2013
Location: Baltimore, MD
Dates: July 21-26, 2013
Keywords: additive manufacturing; stainless steel; cobalt chrome; powder; characterization
Research Areas: Metrology and Standards for Manufacturing Processes