图11 原子堆积高度和划痕损伤体积变化图划痕的原子堆积高度，随磨粒粒径

Fig. 11 Atom stack height and scratch damage volume change diagram The <br>scratched atomic stack height, with the increase of abrasive particle size, shows a trend of increasing first and then decreasing. As the depth of the scratch increases, the height of the atomic stack increases. After the scratching process is completed, the calculated damage volume change of the scratch is shown in Fig. 11. It is found that the damage volume of scratches increases with the size of the abrasive particles, and then tends to be stable after increasing. And the greater the depth of scratches, the greater the volume of scratches

Figure 11 Chart of the height of atomic accumulation and changes in scratch damage volume<br>The height of the atom accumulation of scratches, with the increase of the particle size of the grain, shows the trend of increasing first and then decreasing. The greater the depth of the scratch, the greater the height of the atomic build-up. After the scratch process, the damage volume change of the scratch is calculated as shown in Figure 11. It is found that the damage volume of the scratches increases with the particle size, first increases and then stabilizes. And the greater the depth of the scratch, the greater the damage volume of the scratch.

Fig. 11 changes of atomic stacking height and scratch damage volume<br>With the increase of abrasive particle size, the atomic stacking height of scratch increases first and then decreases. The higher the depth of the scratch, the higher the atomic stacking height. At the end of the scratch process, the damage volume change of the calculated scratch is shown in Figure 11. It is found that the damage volume of scratch increases first and then tends to be stable with the increase of particle size. The larger the scratch depth is, the larger the damage volume is<br>