Microstructure and wear resistance of Al-SiC composites coatings on ZE41 magnesium alloy
Microstructure and wear resistance of Al-SiC composites coatings on ZE41 magnesium alloy
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DOI：
10.1016/j.apsusc.2009.06.122
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发表时间：
2009-08
影响因子：
6.7
通讯作者：
P. Rodrigo;M. Campo;B. Torres;M. D. Escalera;E. Otero;J. Rams
中科院分区：
文献类型：
--
作者：
P. Rodrigo;M. Campo;B. Torres;M. D. Escalera;E. Otero;J. Rams
采用氧乙炔火焰喷涂技术在ZE 41镁合金表面制备了Al和Al-SiC复合涂层。涂层具有高达23 vol.%的受控增强率通过喷涂含有高达50 vol.%的铝粉的混合物获得SiC颗粒。涂层喷涂在镁合金上，其显微组织或力学性能略有下降。涂层被压实以改善其微观结构和保护行为。这些涂层的磨损行为已被测试使用销盘技术和增强涂层提供了85%以上的耐磨性比未涂覆的ZE 41和400%以上的纯铝涂层。
Al and Al–SiC composites coatings were prepared by oxyacetylene flame spraying on ZE41 magnesium alloy substrates. Coatings with controlled reinforcement rate of up to 23vol.% were obtained by spraying mixtures containing aluminium powder with up to 50vol.% SiC particles. The coatings were sprayed on the magnesium alloy with minor degradation of its microstructure or mechanical properties. The coatings were compacted to improve their microstructure and protective behaviour. The wear behaviour of these coatings has been tested using the pin-on-disk technique and the reinforced coatings provided 85% more wear resistance than uncoated ZE41 and 400% more than pure Al coatings.