Can Aluminum Rings Be Magnetized?

Cannot
‌Aluminum rings cannot be magnetized‌. This is because aluminum is not a magnetic material and its atomic structure cannot form a stable magnetic domain structure, so the aluminum ring cannot be magnetized by a magnet. Even if some magnetization occurs briefly, it will disappear quickly after the magnet leaves.

The atomic structure of aluminum is the fundamental reason why it cannot be magnetized. The electronic configuration of aluminum atoms prevents it from forming a stable magnetic domain structure, so aluminum does not have significant magnetic properties‌

In addition, when the magnet is close to the aluminum ring, the magnetic domains inside the aluminum ring will not be rearranged due to the magnetic field of the magnet, so the aluminum ring will not be magnetized.