Relative etch rates of nitric acid on metals and oxides

I am trying to either find or calculate the etch rate of nitric acid ($\ce{HNO3}$) for various different metals and oxides. The ones I am interested in are titanium ($\ce{Ti}$), zirconium ($\ce{Zr}$), and lead ($\ce{Pb}$); and their oxides $\ce{TiO2}$, $\ce{ZrO2}$, and $\ce{PbO/PbO2}$.

I have checked lots of sources, including the CRC Handbook of Metal Etchants, and have not been able to find anything that describes comparative etch rates for those six materials. Where can I find this information or, alternatively, how can I estimate these quantitites?