Journal
POWDER TECHNOLOGY
Volume 350, Issue -, Pages 117-122Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.powtec.2019.03.042
Keywords
Low cost; Titanium powder; Modification; Flowability; Fluidized bed
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Funding
- China Post-doctoral Science Foundation [2018M640064]
- National Natural Science Foundation of China [51604228]
- Fundamental Research Funds for the Central Universities [06500092]
- State Key Lab of Advanced Metals and Materials, University of Science and Technology Beijing [2018-Z02]
- State Key laboratory for Powder Metallurgy, Central South University [621011805]
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Fluidized bed was used to treat low-cost hydride-dehydride Ti powders. Properties and microstructures of powders were investigated in terms of surface morphology, particle size distribution, fiowability, interstitial content and surface oxidation behavior. The results showed the modified morphology and particle size distribution benefit its fiowability after treating. The mechanisms of fiowability improvement and oxidation behavior are also discussed. The powder fiowability is improved to 35.2 +/- 0.3 s/50 g, while its oxygen increment is negligible for the Ti powders after treating at 450 degrees C for 10 min. This study offers a cost-effective process to produce Ti powders for potential use in additive manufacturing. (C) 2019 Elsevier B.V. All rights reserved.
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