| 激光熔覆纳米Al_2O_3增强等离子Al_2O_3+13%TiO_2复合陶瓷涂层的组织结构及磨损性能 |
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| 引用本文： | 张建华,葛红宇,赵剑峰,左健民. 激光熔覆纳米Al_2O_3增强等离子Al_2O_3+13%TiO_2复合陶瓷涂层的组织结构及磨损性能[J]. 热加工工艺, 2006, 0(6) |
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| 作者姓名： | 张建华 葛红宇 赵剑峰 左健民 |
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| 作者单位： | 南京工程学院自动化系，南京工程学院自动化系，南京航空航天大学激光快速成型研究中心，先进数控技术江苏省高校重点建设实验室 江苏南京211167 先进数控技术江苏省高校重点建设实验室，江苏南京210013，江苏南京211167，江苏南京210016，江苏南京210013 |
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| 基金项目： | 江苏省自然科学基金资助项目(2005111) |
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| 摘 要： | 在45钢的Al_2O_3+13%TiO_2等离子涂层上进行了纳米Al_2O_3的激光熔覆试验,对制备的纳米复合陶瓷涂层进行了磨损性能测试与组织结构分析。试验表明:由于纳米材料的大量渗入与激光的双重作用,涂层原有的疏松、裂纹等缺陷得到极大改善,致密度极大提高,力学性能得到显著改善。磨损试验中,纳米涂层材料的去除持续、均匀,无脆断现象,磨损状况良好。
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| 关 键 词： | 激光熔覆 等离子喷涂 组织结构 纳米Al_2O_3 磨损性能 |
Microstructure and Wearing Performance of Al_2O_3+13%TiO_2 Plasma Coating Reinforced by Laser Cladded Nano-Al_2O_3 |
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| ZHANG Jian-hua,,GE Hong-yu,ZHAO Jian-feng,ZUO Jian-min. Microstructure and Wearing Performance of Al_2O_3+13%TiO_2 Plasma Coating Reinforced by Laser Cladded Nano-Al_2O_3[J]. Hot Working Technology, 2006, 0(6) |
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| Authors: | ZHANG Jian-hua GE Hong-yu ZHAO Jian-feng ZUO Jian-min |
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| Affiliation: | ZHANG Jian-hua1,3,GE Hong-yu1,ZHAO Jian-feng2,ZUO Jian-min3 |
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| Abstract: | Laser cladding experiment of nano-Al_2O_3 on Al_2O_3 +13%TiO_2 plasma coating of 45 steel was carried out, and the microstructure and wearing property of the nano composite ceramic coating were studied. The results indicate that because of the dual function of the laser cladding and the nano material infiltration, the number of the loosen structure and the cracks in the ceramic coating decreases greatly, the coating density improves remarkably. Thus, the mechanical performance of the coating improves evidently. In the wearing test, the nano composite coating material is removed steadily, continuously and uniformly without crisp fracture,and reveals the excellent wear resistance. |
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| Keywords: | laser cladding plasma spraying microstructure nano-Al_2O_3 wearing property |
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