Talk:Crystallite

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[edit] Tribology

Will grain size affect the roughness of surface?

Not usually, unless some chemical or mechanical effect affects the grain boundaries differently than the bulk. Plating or dissolution tend to produce facets, which are larger for larger crystals, while intergranular fracture (due to bad heat treatment) exposes internal facets. Also, some wear processes are affected indirectly by grain size. --Joel 21:21, 6 September 2005 (UTC)