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铝基体上等离子体电解氧化陶瓷涂层的冲蚀性能
Authors
刘仁
夏原
+5 more
张世欣
李光
杨苗苑
武传田
王小成
Publication date
25 September 2015
Publisher
Abstract
采用气流喷砂式冲蚀试验机,对铝合金基体的等离子体电解氧化(PEO)陶瓷层进行冲蚀性能研究。利用扫描电子显微镜及精密天平,检测了PEO陶瓷层的表面冲蚀形貌及冲蚀磨损量,比较分析了粒子速度、入射角度对冲蚀磨损率及冲蚀形貌的影响规律。结果表明,PEO陶瓷涂层在受冲蚀时表面裂纹萌生扩展导致材料破碎成细块脱落,属于典型的脆性材料冲蚀行为;PEO陶瓷涂层冲蚀磨损率随入射角度的减小逐渐降低,对低角冲蚀表现良好的抗冲蚀能力;粒子速度对PEO陶瓷层冲蚀磨损率的影响非常明显,其速度指数为2.7
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 12/02/2018