Abstract:On the basis of the morphology of organism's surface,bionic non-smooth coatings of wave and plane-type on 45 steel were prepared by laser cladding. The abrasive wear test was carried out with abrasion tester, and the wear scar was observed.The wear mechanism was analyzed. The results show that the wear resistance of plane type coating is remarkably better than that of the wave type. The criterion for designing and preparing a good wear-resistant coating is:geometric hardening rate(GHR) was no less than 50%. The wear mechanism of wave-type coating is that the hardening belt's non-smooth surface and the impact of the grinding head function together. The wear mechanism of flat-type coating is the combination of the wear mechanisms of the hardening belt's non-smooth surface and its non-smooth geometric surface morphology.
[1] 魏小波, 李洪文, 凌刚, 等.免耕播种机开沟圆盘材质与加工工艺的研究[J].农机化研究, 2007, (1):96-99.WEI Xiao-bo, LI Hong-wen, LING Gang, et al. Analysis of materials of different disc opener for no-tillage planter[J]. Journal of Agricultural Mechanization Research, 2007, (1):96-99.
[2] 王继山.免耕播种机开沟器的分析与研究[J].山西农业大学学报:社会科学版, 2007, 6(5):7-10.WANG Ji-shan. Analysis and research on the drill opener of no-tillage planter[J]. Journal of Shanxi Agricultural University (Social Science Edition), 2007, 6(5):7-10.
[3] 孙浩, 凌刚, 李洪文, 等. 扫描间距对45 钢激光熔凝强化组织性能的影响[J]. 农业工程学报, 2011, 27(2):156-160.SUN Hao, LING Gang, LI Hong-wen, et al. Influence of scanning interval on microstructure and abrasive wear resistance of 45 steel by laser melting[J]. Transactions of the CSAE, 2011, 27(2):156-160.
[4] 万其号, 布库, 李岩, 等. 大型免耕播种机开沟器结构研究[J]. 农机化研究, 2012, 34(3):45-48.WAN Qi-hao, BU Ku, LI Yan, et al. Structure analysis of the large no-till seeder openers[J]. Journal of Agricultural Mechanization Research, 2012, 34(3):45-48.
[5] 杨志贤, 戴振东.甲虫生物材料的仿生研究进展[J]. 复合材料学报, 2008, 5(2):1-9.YANG Zhi-xian, DAI Zhen-dong. Progress in bionic research on biomaterials of beetles[J]. Acta Materiae Compositae Sinica, 2008, 5(2):1-9.
[6] 韩志武, 任露泉, 刘祖斌. 激光织构仿生非光滑表面抗磨性能研究[J]. 摩擦学学报, 2004, 24(4):289-293.HAN Zhi-wu, REN Lu-quan, LIU Zu-bin. Investigation on anti-wear ability of bionic nonsmooth surfaces made by laser texturing[J].Tribology, 2004, 24(4):289-293.
[7] ANDERS H, ANDERS N. Adhesion testing of thermally sprayed and laser deposited coatings[J]. Surface and Coatings Technology, 2004, 184(2-3):208-218.
[8] 王再宙, 王忠良, 任露泉, 等. 仿生非光滑表面磨损机理的试验研究[J]. 材料科学与工艺, 2006, (3):275-279.WANG Zai-zhou, WANG Zhong-liang, REN Lu-quan, et al. Experiment research on wear mechanism with bionic non-smoothed surface[J]. Materials Science and Technology, 2006, (3):275-279.
[9] KARNIADAKIS G E. Mechanisms on transverse motions in turbulent wall flows[J].Annual Review of Fluid Mechanics, 2003, 35:45-62.
[10] 佟金, 荣宝军, 马云海, 等. 仿生棱纹几何结构表面的土壤磨料磨损[J]. 摩擦学学报, 2008, 28(3):193-197. TONG Jin, RONG Bao-jun, MA Yun-hai, et al. Abrasive wear of the biomimetic ridge surfaces against soil[J].Tribology, 2008, 28(3):193-197.
[11] 杨卓娟, 韩志武, 任露泉. 激光处理凹坑形仿生非光滑表面试件的高温摩擦磨损特性研究[J].摩擦学学报, 2005, 25(4):374-376. YANG Zhuo-juan, HAN Zhi-wu, REN Lu-quan. Friction and wear behavior of bionic non-smooth surface at high temperature[J].Tribology, 2005, 25(4):374-376.
[12] MICHAEL J W. Riblets as a viscous drag reduction technique[J]. American Institute of Aeronautics and Astronautics, 1983, 21(4):485-486.
[13] 董立春, 韩志武, 吕尤, 等. 凹坑型仿生形态环块样件耐磨性能[J]. 吉林大学学报:工学版, 2011, 41(6):1659-1663. DONG Li-chun, HAN Zhi-wu, LV You, et al. Anti-wear properties of ring model with bionic concave morphology[J]. Journal of Jilin University(Engineering and Technology Edition), 2011, 41(6):1659-1663.
[14] 王晓荣, 王新洪, 杜宝帅, 等.激光熔覆Fe-Ti-V-Cr-C合金涂层的微观组织和性能[J].材料工程, 2011, (3): 50-54. WANG Xiao-rong, WANG Xin-hong, DU Bao-shuai, et al. Microstructure and property of laser cladding Fe-Ti-V-Cr-C alloy coatings[J]. Journal of Materials Engineering, 2011, (3):50-54.
[15] 曾维华, 刘洪喜, 王传琦, 等.工艺参数对不锈钢表面激光熔覆Ni基涂层组织及耐腐蚀性能的影响[J].材料工程, 2012, (8):24-28. ZENG Wei-hua, LIU Hong-xi, WANG Chuan-qi, et al. Effects of technological parameters on microstructure and corrosion resistance of laser cladding Ni-based coating on stainless steel surface[J]. Journal of Materials Engineering, 2012, (8):24-28.
[16] 郭绍义, 李兴俊, 杨秋合, 等. 激光熔覆WC-Ni/TiC涂层的组织和摩擦磨损性能研究[J].材料工程, 2008, (6):72-76. GUO Shao-yi, LI Xing-jun, YANG Qiu-he, et al. Microstructure and tribological properties of laser clad WC-Ni/ TiC composite coatings[J]. Journal of Materials Engineering, 2008, (6): 72-76.