Procedural edge wear material This is a simple node group to add edge wear onto objects.
It uses the "Pointiness" attribute, with is based on vertex count, so INCREASE THE SUBDIVISIONS FOR A BETTER RESULT.
It uses a texture from CG textures-(http://www.textures.com/download/ice0052/42909?q=ice). This can be changed by entering the node group and choosing a different texture.
For more control over the amount of wear, experiment with the colour ramp inside the node.
The file includes PBR shaders made by Blender Guru-(https://www.blenderguru.com /tutorials/pbr-shader-tutorial-pt1/)