信灿尧,刘靓,闫钊鸣,等.不同离子渗氮时间对Ti60合金表面性能的影响[J].精密成形工程,2025,17(4):87-95.
XIN Canyao,LIU Liang,YAN Zhaoming,et al.Effect of Different Plasma Nitriding Time on Surface Properties of Ti60 Alloy[J].Journal of Netshape Forming Engineering,2025,17(4):87-95. |
| 不同离子渗氮时间对Ti60合金表面性能的影响 |
| Effect of Different Plasma Nitriding Time on Surface Properties of Ti60 Alloy |
| 投稿时间：2024-12-23 |
| DOI：10.3969/j.issn.1674-6457.2025.04.008 |
| 中文关键词: Ti60 渗氮时间 表面性能 氮化层 微观组织 |
| 英文关键词: Ti60 nitriding time surface property nitriding layer microstructure |
| 基金项目:国家自然科学基金(52075501) |
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| 摘要点击次数: 2 |
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| 中文摘要: |
| 目的 探究Ti60合金在进行双辉离子渗氮时改变时间引起的表面性能变化，以提高表面耐磨性，延长使用寿命。方法 使用高4.8 m的双辉离子渗氮设备在900 ℃条件下分别进行8、12和16 h的渗氮处理，结合光学显微镜(OM)、扫描电镜(SEM)、X射线衍射仪(XRD)、往复摩擦磨损试验及硬度测量等手段，分析了双辉离子渗氮时间对Ti60合金的表面形貌、相组成及性能变化的影响。结果 双辉离子渗氮8、12、16 h后的硬度值分别660.5HV、737.85HV、935.57HV，渗氮层厚度分别为0、(8±1)、(12±2) μm，摩擦磨损的直径分别为(68±5)、(62±4)、(53±6) μm，粗糙度分别为0.28、0.27、1.97 µm，摩擦因数分别为0.495、0.524、0.5。结论 随着渗氮时间的延长，Ti60合金表面渗氮层逐渐增厚，表面成分由以TiN相为主导(8 h)逐步过渡为以Ti2N相为主导(16 h)，从而提高了Ti60合金的各项表面性能。因此，渗氮时间16 h为最佳的工艺参数。 |
| 英文摘要: |
| The work aims to investigate the change of surface properties caused by the change of time during dual-glow plasma nitriding of Ti60 alloy, so as to improve the surface wear resistance and extend the service life of components. Using a 4.8 m dual-glow plasma nitriding equipment, Ti60 alloy samples were nitrided at 900 ℃ for 8, 12, and 16 h. The surface morphology, phase composition, and performance changes of Ti60 alloy during nitriding were analyzed using optical microscopy (OM), scanning electron microscopy (SEM), X-ray diffraction (XRD), reciprocating friction wear tests, and hardness measurements. After 8, 12, and 16 h of dual-glow plasma nitriding, the hardness values were 660.5HV, 737.85HV, and 935.57HV, respectively. The nitrided layer thicknesses were 0, (8±1), and (12±2) μm, respectively. The wear diameter decreased to (68±5), (62±4), and (53±6) μm, respectively. Surface roughness values were 0.28, 0.27, and 1.97 μm, and the friction coefficients were 0.495, 0.524, and 0.5, respectively. With the extension of nitriding time, Ti60 alloy's surface gradually formed TiN phase, with the TiN phase dominating at 8 hours and transitioning to Ti2N phase at 16 hours, significantly improving the surface performance of Ti60 alloy. Therefore, 16 hours of nitriding time is the optimal process parameter. |
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