为研究表面纹理和表面膜对材料抗空蚀特性的影响,采用激光表面改性的方法对Ti6Al4V合金进行纹理加工,在纹理加工试样上采用自组装技术制备自组装分子膜.采用接触角测量表征试样的表面特性,通过对试样的抗空蚀特性进行测试和对试样空蚀前后的表面形貌进行观测,分析试样的空蚀发生机制.结果表明,Ti6Al4V试样上激光加工表面纹理可显著提高其抗空蚀能力,纹理加工试样上制备自组装分子膜,由于具有疏水特性可以进一步改善试样的抗空蚀能力;网格纹理试样的抗空蚀能力由于表面硬度高、硬度梯度大及突起高硬度点分布均匀而强于直线纹理试样;沉积薄膜纹理试样的抗空蚀能力随着间距的增大而增大,未沉积薄膜试样的抗空蚀能力随着间距的增大而减小.
参考文献
| [1] | Chen Haosheng;Li Yongjian;Chen Darong;Wang Jiadao .Experimental and numerical investigations on development of cavitation erosion pits on solid surface[J].Tribology letters,2007(2):153-159. |
| [2] | Chandan Mishra;Yoav Peles .Size Scale Effects on Cavitating Flows Through Microorifices Entrenched in Rectangular Microchannels[J].Journal of Microelectromechanical Systems: A Joint IEEE and ASME Publication on Microstructures, Microactuators, Microsensors, and Microsystems,2005(5):987-999. |
| [3] | Hiromi Mochizuki;Motohiro Yokota;Shuji Hattori .Effects of materials and solution temperatures on cavitation erosion of pure titanium and titanium alloy in seawater[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2007(5/6):522-528. |
| [4] | Szkodo M .[J].Journal of Materials Processing Technology,2005,162:410. |
| [5] | 孙荣禄,牛伟,王成扬.钛合金表面激光熔覆TiN-Ni基合金复合涂层的组织和磨损性能[J].稀有金属材料与工程,2007(01):7-10. |
| [6] | 王影,张凌云,于荣莉,王华明.钛合金表面激光熔敷Ti2Ni3Si/NiTi耐磨涂层组织与耐磨性能[J].稀有金属材料与工程,2006(01):62-65. |
| [7] | Michael Prenner P;Dettef Lohse .[J].Physical Review Letters,2008,101:214505. |
| [8] | Mauro Sbragaglia;Alisia Pteters M;Christophe Pirat et al.[J].Physical Review Letters,2007,99:156001. |
| [9] | Nicolas Bremond;Manish Arora;Stephan Dammer M et al.[J].Physics of Fluids,2006,18:121505. |
| [10] | Diodati P.;Marchesoni F. .Time-evolving statistics of cavitation damage on metallic surfaces[J].Ultrasonics sonochemistry,2002(6):325-329. |
| [11] | Shuji H;Kohei M;Zhang Q L .[J].WEAR,2004,257:1064. |
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