ISSN   1004-0595

CN  62-1095/O4

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肖童金, 何洪途, 余家欣. 干燥气氛下速度对钠钙玻璃磨损性能的影响[J]. 摩擦学学报, 2019, 39(5): 601-610. DOI: 10.16078/j.tribology.2019057
引用本文: 肖童金, 何洪途, 余家欣. 干燥气氛下速度对钠钙玻璃磨损性能的影响[J]. 摩擦学学报, 2019, 39(5): 601-610. DOI: 10.16078/j.tribology.2019057
XIAO Tongjin, HE Hongtu, YU Jiaxin. Effect of Sliding Speed on Wear Behaviors of Soda Lime Glass in Dry Air[J]. TRIBOLOGY, 2019, 39(5): 601-610. DOI: 10.16078/j.tribology.2019057
Citation: XIAO Tongjin, HE Hongtu, YU Jiaxin. Effect of Sliding Speed on Wear Behaviors of Soda Lime Glass in Dry Air[J]. TRIBOLOGY, 2019, 39(5): 601-610. DOI: 10.16078/j.tribology.2019057

干燥气氛下速度对钠钙玻璃磨损性能的影响

Effect of Sliding Speed on Wear Behaviors of Soda Lime Glass in Dry Air

  • 摘要: 以硼硅酸盐玻璃球为对摩副,在摩擦磨损试验机上研究了干燥气氛下滑动速度和载荷对钠钙玻璃表面磨损性能的影响规律与作用机理. 研究发现,随着滑动速度从0.25 mm/s逐渐增大到8 mm/s,钠钙玻璃在高载下(2 N)的稳态摩擦系数略微降低,当载荷降低为1 N时,速度对钠钙玻璃摩擦系数的影响并不明显. 随着滑动速度的增加,钠钙玻璃表面的磨损深度和磨损体积逐渐增加,钠钙玻璃在低载下(1 N)的磨损体积增大了21.5倍,而在高载下(2 N)的磨损体积增大了12.5倍. 低速时,钠钙玻璃接触界面温升较小,磨损机理以磨粒磨损和黏着磨损为主,并伴有少量脆性剥落. 随着速度的增加,磨屑逐渐转移到对摩副pyrex球表面并参与到磨损过程,钠钙玻璃的磨损机理转变为黏着磨损和犁沟去除. 相对于高载而言,低载下滑动速度对钠钙玻璃材料去除的影响更为显著,这是由于随着速度的增加,低载下玻璃界面的温升增长率大于高载下.

     

    Abstract: The effects of sliding speed and normal load on wear behaviors of soda lime glass in dry air were investigated by rubbing against a pyrex glass ball upon an environment-controlled ball-on-flat tribometer. The results show that, with the increase in sliding speed from 0.25 mm/s to 8 mm/s, the stable friction coefficient of soda lime glass decreased a little bit when the normal load was 2 N, but the effect of speed on the stable friction coefficient became insignificant when the normal load decreased to 1 N. Moreover, the wear volume of soda lime glass increased by 21.5 times when the normal load was 1 N, and it increased by 12.5 times as the normal load increased to 2 N. The analysis showed that, at low speed conditions, the locally temperature rise at the interface of soda lime glass was small, the abrasive wear and adhesive wear, accompanied by a small amount of brittle flaking dominated the wear process. As the speed increased, the wear debris gradually shifted to the pyrex glass ball surface and participated in the wear process. The wear pattern of the soda lime glass also changed to adhesive wear and plowing removal. Compared to high load conditions, the effect of sliding speed on the material removal of soda lime glass was more significant under low load conditions, which was due to the higher growth rate of interfacial temperature rise under low load conditions as the speed increased.

     

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