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| 滑靴耐磨减摩涂层制备 |
| Preparation of Wear-resistant and Antifriction Coating for Slipper |
| Received:December 10, 2019 Revised:January 10, 2020 |
| DOI：10.3969/j.issn.1674-6457.2020.01.021 |
| 中文关键词: 表面凿削 热烧蚀 超音速火焰喷涂 耐磨减磨涂层 |
| 英文关键词: surface gouging thermal ablation supersonic flame spraying wear-resistant and friction reducing coating |
| 基金项目: |
| Author Name | Affiliation | | SU Jing-yu | State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China | | CAI Hong-neng | State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China | | WEI Zhi-yuan | State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China | | LIU Yang | State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China |
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| 中文摘要: |
| 目的 制备减摩耐磨涂层，使滑靴在高速干摩擦条件下运动时能够减弱由于颗粒磨损、表面凿削和高温热烧蚀而引起的烧蚀和磨损。方法 使用超音速火焰喷涂技术，在滑靴滑轨同材料试样上喷涂NiCr-Cr3C2耐磨涂层，并且加入不同质量分数的Ni包MoS2粉末对涂层性能进行优化，接着通过对制得的涂层进行硬度、结合强度、摩擦磨损系列试验，对比各项试验结果得到了最优粉末质量分数配比，从而使制得的涂层在具有耐磨基础的同时也能达到减摩的效果。结果 对涂层进行各种性能表征，综合各种试验结果可得出，选择Ni包MoS2的质量分数为16%~24%之间时，涂层的综合效果最好。结论 制得的涂层应用在滑靴摩擦表面上不仅可以使滑靴基体的表面温升缓慢，还能够极大程度上降低热烧蚀的发生，有效解决了滑靴高速运动下由于温升而使材料气化的问题。 |
| 英文摘要: |
| The work aims to prepare friction reducing and wear-resistant coating, so that slippers can reduce the erosion and wear caused by particle wear, surface gouging and high-temperature thermal ablation under high-speed dry friction condition. NiCr-Cr3C2 wear-resistant coating was sprayed on the same material sample of slippers and slide rail by supersonic flame spraying technology, and the properties of coating were optimized by adding different mass fraction of Ni clad MoS2 powder. Then, through a series of tests including hardness, bonding strength, friction and wear of the coating, the optimal mass fraction ratio of powder was obtained by comparing the test results, so that the coating can achieve the effect of friction reduction while possessing the wear resistance. From the characterization on coating properties and the results of various tests, when the mass fraction of MoS2 was between 16% and 24%, the comprehensive effect of the coating was the best. The coating can not only slow the surface temperature rise of the slippers, but also reduce the occurrence of thermal erosion to a great extent, which effectively solves the problem of material gasification in slippers due to temperature rise under high-speed movement. |
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