The deformation of the abrasive counteracts part of the cutting depth which determines the roughness of the polished surface.The deformation amount is in proportion to the hardness of the abrasives.

• 分析指出这个变形量与纳米磨料的硬度成反比， 硬度低的纳米磨料由于自身变形量大， 导致切削深度小， 抛光后表面的粗糙度值低。