干燥气氛下速度对钠钙玻璃磨损性能的影响

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.

Using borosilicate glass spheres as the friction counterparts, the effects of sliding velocity and applied load on the wear performance of soda-lime glass surfaces under dry atmosphere were investigated on a friction and wear tester, together with their underlying mechanisms. It was found that when the sliding velocity increased gradually from 0.25 mm/s to 8 mm/s, the steady-state friction coefficient of soda-lime glass slightly decreased under a high load of 2 N. When the load was reduced to 1 N, however, the effect of velocity on the friction coefficient of soda-lime glass was not obvious. With the increase of sliding velocity, both the wear depth and wear volume on the soda-lime glass surface increased progressively. Specifically, the wear volume of soda-lime glass increased by 21.5 times under a low load of 1 N, and by 12.5 times under a high load of 2 N. At low sliding velocities, the temperature rise at the contact interface of soda-lime glass was relatively small, and the wear mechanisms were dominated by abrasive wear and adhesive wear, accompanied by a small amount of brittle spalling. As the sliding velocity increased, wear debris gradually transferred to the surface of the Pyrex glass sphere (the friction counterpart) and participated in the wear process, causing the wear mechanisms of soda-lime glass to shift to adhesive wear and plowing removal. Compared with high load conditions, the effect of sliding velocity on the material removal of soda-lime glass was more significant under low load. This is because with the increase of velocity, the growth rate of temperature rise at the glass contact interface under low load was higher than that under high load.

搜集汇总

背景与挑战

背景概述

该数据集研究了干燥气氛下不同滑动速度和载荷对钠钙玻璃磨损性能的影响，实验发现随着速度增加，磨损体积显著增大（低载下增21.5倍，高载下增12.5倍），且磨损机理从磨粒磨损和黏着磨损转变为黏着磨损和犁沟去除。数据集揭示了速度与载荷的交互作用，特别是低载下速度对材料去除的影响更显著，为理解玻璃材料在摩擦条件下的行为提供了实验依据。