摘要
采用X射线衍射仪(XRD)、扫描电镜(SEM)、显微硬度计、摩擦磨损试验机等手段研究了纳米添加剂对6063铝合金微弧氧化陶瓷涂层的相组成、微观结构、显微硬度、耐磨损等性能的影响。结果表明:TiO2或Al2O3纳米粉末的添加都使得微弧氧化陶瓷涂层的表面更加致密,使得涂层的显微硬度有明显提高。另外,因为金红石型TiO2与α-Al2O3的性能有所不同,导致添加Al2O3纳米添加剂时涂层的耐磨性能明显提高,而添加TiO2纳米添加剂时涂层的耐磨性能反而有所降低。
The effects of nano-additive in electrolyte on phase composition,microstructure,microhardness and wear resistance of micro-arc oxidation ceramic coatings on 6063 aluminum alloy were investigated by means of XRD,SEM,hardness and wear tests.The results show that the micro-arc oxidation ceramic coatings become more dense,and its microhardness increases by the addition of TiO2 and Al2O3 nano powder in electrolyte.In addition,wear resistance of the micro-arc oxidation ceramic coatings is obviously improved by addition of Al2O3 nano-additive,but wear resistance of the micro-arc oxidation ceramic coatings decreases due to the addition of TiO2 nano-additive.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2010年第4期125-128,共4页
Transactions of Materials and Heat Treatment
基金
浙江省科技计划重大科技专项资助项目(2006C11183)
