金烨堂,王进,马大衍,等.硬质合金刀条AlCrN硬质膜性能的研究[J].精密成形工程,2018,10(4):139-144.
JIN Ye-tang,WANG Jin,MA Da-yan,et al.Properties of AlCrN Coating on Cemented Carbide Cutters[J].Journal of Netshape Forming Engineering,2018,10(4):139-144. |
| 硬质合金刀条AlCrN硬质膜性能的研究 |
| Properties of AlCrN Coating on Cemented Carbide Cutters |
| 投稿时间：2018-04-16 修订日期：2018-07-10 |
| DOI：10.3969/j.issn.1674-6457.2018.04.022 |
| 中文关键词: 硬质合金刀条 阴极多弧离子镀 结合力 涂层厚度 |
| 英文关键词: cemented carbide blades vacuum cathode arc ion plating the film-base bonding coating thickness |
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| 中文摘要: |
| 目的 采用阴极多弧离子镀膜设备制备AlCrN薄膜，研究适合实际工况的膜层性能和厚度。方法 利用工具显微镜、扫描电子显微镜检测并分析涂层表面和截面形貌；使用洛氏硬度计、HV显微硬度计、球磨仪检测分析涂层膜基结合力以及涂层厚度对结合力、涂层显微硬度和使用寿命的影响。结果 涂层以AlCrN/CrN结构沉积，涂层表面呈波纹状，分布有大颗粒和凹坑，经钝化处理后，表面质量明显改善。涂层的显微硬度为HV2200~HV3700，在基体硬度不变的情况下涂层的显微硬度随涂层厚度的增加而增加。随着涂层厚度的增加，结合力先变好后变差，刀条实际使用寿命也有相同的变化趋势。结论 硬质合金刀条的最佳涂层厚度为4.0~4.5 μm。 |
| 英文摘要: |
| The paper aims to prepare AlCrN thin film with cathode multi-arc ion coating equipment to study film properties and thickness suitable for practical conditions. The surface and cross-sectional morphology of the coating were examined and analyzed with tool microscope and scanning electron microscope. The film-base bonding and the effects of coating thickness on the film-base bonding, hardness of the coating and service life were examined and analyzed with Rockwell indentation, HV microhardness tester and ball-crater instrument respectively. The coating was deposited as AlCrN/CrN structure; surface of the coating was corrugated; and there were a few large particles and pits. After passivation treatment, the surface quality was significantly improved. The microhardness of the coating was HV2200~HV3700. With the same hardness of the substrate, the microhardness of the coating increased with the increase of the coating thickness. And with the increase of coating thickness, the film-base bonding became better after being deteriorated, and the actual service life of the blade had the same tendency. Finally, the optimal coating thickness of cemented carbide blade is 4.0~4.5 μm. |
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