期刊
ADVANCED POWDER TECHNOLOGY
卷 26, 期 5, 页码 1335-1347出版社
ELSEVIER
DOI: 10.1016/j.apt.2015.07.008
关键词
Ti-6Al-4V; Microstructure; Powder; SEM; Nanohardness
资金
- U.S. Army Research Laboratory [W911NF-10-2-0098]
The importance of powder feedstock microstructure has been of relatively little interest in literature up until this point due to the melting or near melting processing conditions in most modern powder metallurgical techniques. The microstructure and resultant properties of consolidated materials in solid state processes, such as cold spray, are critically dependent on the feedstock powder. The focus of this paper is the characterization of plasma atomized Ti-6Al-4V powder using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Results indicate that while most powders are martensitic due to high cooling rates, powders can also have an equiaxed cellular or featureless microstructure depending on particle size. (C) 2015 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
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