ISSN   1004-0595

CN  62-1095/O4

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吴松波, 蔡振兵, 林禹, 李正阳, 朱旻昊. 硬质沙粒对TC4钛合金冲击磨损的损伤行为的研究[J]. 摩擦学学报, 2018, 38(4): 383-390. DOI: 10.16078/j.tribology.2018.04.002
引用本文: 吴松波, 蔡振兵, 林禹, 李正阳, 朱旻昊. 硬质沙粒对TC4钛合金冲击磨损的损伤行为的研究[J]. 摩擦学学报, 2018, 38(4): 383-390. DOI: 10.16078/j.tribology.2018.04.002
WU Songbo, CAI Zhenbing, LIN Yu, LI Zhengyang, ZHU Minhao. Effect of Hard Sand on the Impact Wear Behavior of TC4 Alloy[J]. TRIBOLOGY, 2018, 38(4): 383-390. DOI: 10.16078/j.tribology.2018.04.002
Citation: WU Songbo, CAI Zhenbing, LIN Yu, LI Zhengyang, ZHU Minhao. Effect of Hard Sand on the Impact Wear Behavior of TC4 Alloy[J]. TRIBOLOGY, 2018, 38(4): 383-390. DOI: 10.16078/j.tribology.2018.04.002

硬质沙粒对TC4钛合金冲击磨损的损伤行为的研究

Effect of Hard Sand on the Impact Wear Behavior of TC4 Alloy

  • 摘要: 在新型冲击磨损试验机上,以TC4钛合金作为研究对象开展了在硬质沙粒条件下的冲击试验. 考察了沙粒粒径(120~380 μm)、冲击次数对TC4钛合金冲击磨损行为的影响. 研究结果表明:粒径能显著影响TC4钛合金的冲击磨损行为. 在冲击过程中硬质沙粒会不断切削、挤压试样表面,造成较大的材料损失. 随着沙粒粒径的增加,磨损面积增加,冲击力峰值、磨损深度和界面的能量吸收率都呈现先增加后减小的趋势. 随着冲击次数的增加,冲击力峰值和界面能量吸收率增加,磨损加剧. 硬质沙粒冲击作用下TC4钛合金的磨损机制主要表现为沙粒棱角对试样表面的微观切削和挤压剥落.

     

    Abstract: The impact test of TC4 titanium alloy with the environment hard sand was carried out, using a new kind of impact wear test rig. The effects of particle size (120~380 μm) and impact cycle were studied. The results show that the size of sand particles significantly affected the impact wear behavior. In the process of impact, hard sand particles cut and squeezed the sample surface constantly, resulting in increasing loss of material. As the particles size was increased, the wear area increased, and the peak of impact force, the wear depth and the energy absorption rate of the interface increased firstly and then decreased. Increasing the impact cycles increased both the peak of impact force and the energy absorption rate, and the wear was severe. The wear mechanism of TC4 titanium alloy in hard sand environment mainly indicated microscopic cutting and exfoliation generated due to the edges of sand.

     

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