highly significantp -value < 0.0001
The two-way interaction of the condition and the surface was also highly significant ( p -value < 0.0001), indicating that polishing increased the microhardness values at the top and the bottom surface.
The two-way interaction of the condition and the surface was also highly significant ( p -value < 0.0001), indicating that polishing increased the microhardness values at the top and the bottom surface.