Laser fabrication nanocrystalline coatings using simultaneous powders/wire feed
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- 作者：Jianing Lia ; jn2369@163.com" class="auth_mail" title="E-mail the corresponding author ; Tongguang Zhaia ; b ; Yuanbin Zhanga ; Feihu Shanc ; Peng Liua ; Guocheng Rena
- 关键词：Metal-matrix composites (MMCs) ; Surface properties ; Nanocrystalline materials ; Lasers
- 刊名：Physica E: Low-dimensional Systems and Nanostructures
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：81
- 期：Complete
- 页码：44-48
- 全文大小：1613 K
文摘
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Simultaneously feeding TC17 wire and Stellite 20–Si3N4–TiC–Sb mixed powders formed composites.
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Sb addition in laser molten pool was favorable to the formations of UNs.
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UNs were intertwined with amorphous, leading the yarn-shape materials to be produced.
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Ti entered into molten pool from the wire and TA1, which may react with Si or N.