They can, but you have to understand that magnetism and oxidation (the process that causes rust) are unrelated.
The most common magnetic element that corrodes to form rust is iron. When aligned, atoms of iron will possess a magnetic field that will lead to interaction with other magnetic, ferrous materials. Iron will oxidize to form rust.
if rust is forming on a wheelbarrow, it is already magnetic. Rust is Iron Oxide, and a wheelbarrow must be made of iron if there is rust on it. Iron is always magnetic, so an iron wheelbarrow would be magnetic regardless of whether it had no rust or lots of rust on it.
Non-magnetic materials are referred to as diamagnetic.
Here's the answer plain and simple, no. .
A Black Magnet
Magnetic: Fridge magnet Non magnetic: Milk
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Iron and steel with both rust, but no other substance will.
Iron Oxide is not magenetic, only pure iron, nickel, cobalt, and steel can be magnetic.
It's not the material it's whats in iron and cobalt makes materials magnetic
Magnets have magnetic force in them, obviously, to attract or repel magnetic materials. The materials could not be attracted without the magnetic force because the magnet forces the magnetic material towards it.
The magnetic materials which can magnetise and de-magnetise easily are called "soft magnetic materials" example:-ferrites,iron-cobalt alloy. The magnetic materials which cannot magnetise and de-magnetise easily are called "hard magnetic materials" example:-aluminium(al),nickel-cobalt alloy.