Metallic Porous Coating Texture

Hi all!

I’m working on a render for a medical device that has a surface texture known in the industry as a porous coating. I’d like to recreate this texture shown in the pictures preferably using a procedural texture, but really any way possible would be a huge help. The texture is metal and as rough as it looks.

A voronoi texture, color ramp, and a bump node gets 75% of the way there, but I’m wondering if there’s any way I could make it more realistic in cycles.

Thanks in advance.

Screenshot 2022-06-13 163157

This is one of my favorite nodelets for a porous material. Not sure if this helps, but I find it to be a functional improvement on voronoi for situations like this: