期刊
SCRIPTA MATERIALIA
卷 60, 期 8, 页码 710-713出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2008.12.050
关键词
Deposition; Dynamic phenomena; Recrystallization; Ultrafine-grained microstructure; Thermal softening
类别
资金
- KAKENHI [19360335]
- Ministry of Education, Culture, Sports, Science and Technology of the Japanese Government
- Grants-in-Aid for Scientific Research [19360335] Funding Source: KAKEN
Micron-size titanium powder was deposited on a steel substrate by a warm spraying process, in which particles were accelerated and simultaneously heated by a supersonic gas flow. The gas temperature was controlled to soften the metal below its melting point before impacting onto the substrate. The particles were deposited with very high efficiency and bonded well to the substrate due to the thermal softening. Remarkably, fully nanocrystalline particles were formed by dynamic recrystallization without any pretreatment of the powder. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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