[freebeard]

A bit of a stretch for this thread, but i'm getting bored.

Would this help?

Discovery is key to metal wear in sliding parts

This sequence of images reveals surprising fluid-like behavior in a solid piece of metal sliding over another, forming defects leading to wear in metal parts. (Top) Two image frames of the material flow showing how these defects are spawned in the wake of the contact. (Bottom) Scanning electron microscope pictures of the corresponding wear surfaces showing a tear and a crack. Wear particles are formed when the tears and cracks detach from the surfaces.
Credit: Purdue University School of Industrial Engineering image/Anirban Mahato