No, iron is an element. Chrmium is also an element, so there are no other substances, compounds or otherwise, that are found in it. However, there are alloys that contain both iron and chromium along...
-Titanium dioxide, TiO2, used to make white pigments,
-Titanum tetrachloride, TiCl4, used in smokescreens and as a catalyst for chemical reactions,
-Titanium trichloride, TiCl3, used as a catalyst...