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    秦林, 赵琪, 杨昆昆, 唐宾. TC4钛合金齿轮表面渗钼合金化后的组织与性能[J]. 机械工程材料, 2013, 37(10): 74-78.
    引用本文: 秦林, 赵琪, 杨昆昆, 唐宾. TC4钛合金齿轮表面渗钼合金化后的组织与性能[J]. 机械工程材料, 2013, 37(10): 74-78.
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    QIN Lin, ZHAO Qi, YANG Kun-kun, TANG Bin. Microstructure and Performance of Mo Surface Alloyed Ti6Al4V Gear[J]. Materials and Mechanical Engineering, 2013, 37(10): 74-78.
    Citation: QIN Lin, ZHAO Qi, YANG Kun-kun, TANG Bin. Microstructure and Performance of Mo Surface Alloyed Ti6Al4V Gear[J]. Materials and Mechanical Engineering, 2013, 37(10): 74-78.
    shu

    TC4钛合金齿轮表面渗钼合金化后的组织与性能

    Microstructure and Performance of Mo Surface Alloyed Ti6Al4V Gear

      摘要
    • 摘要: 采用双层辉光等离子表面合金化技术, 对TC4钛合金齿轮表面实施渗钼合金化处理, 对改性层组织、硬度进行了分析, 并与不同齿轮配对进行了跑合试验。结果表明: TC4合金齿轮渗钼改性层由厚度为18 μm 的钼沉积层和合金扩散层构成, 改性层与基体形成冶金结合; 其表面硬度达970 HK, 从表及里呈梯度分布; 改性后TC4合金齿轮在跑合时的耐磨性能明显提高, 与40Cr钢齿轮配对时耐磨能力较未处理的合金齿轮提高390%。

       

      Abstract: Double glow plasma surface alloying technology was used to prepare a molybdenum modified layer on the surface of TC4 alloy gears. The microstructure and hardness of the modified layers were analyzed. Running-in tests for gear pairs between different gears were carried out. The results show that the Mo modified layer of 18 μm in thickness consisted of a deposition layer and a diffusion zone, and formed metallurgical bond with the substrate. The hardness of the modified layer showed a gradual decrease with depth from the surface to substrate, and obtained a maximum value of 970 HK. The wear-resistance of the Mo-alloyed TC4 gears increased by 390% when running with 40Cr gear.

       

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