A method of treating aluminum or aluminum alloy includes providing an aluminum or aluminum alloy substrate; depositing a first zincating layer on the substrate by zincate immersion; stripping off the first zincating layer; depositing a second zincating layer on the substrate by zincate immersion; stripping off the second zincating layer; and depositing a third zincating layer on the substrate by zincate immersion.

Magnets including a coating and related methods are described herein. The coating may include an aluminum layer. The aluminum layer may be formed in an electroplating process.

Magnets including a coating and related methods are described herein. The coating may include an aluminum layer. The aluminum layer may be formed in an electroplating process.

The invention relates to metallic substrates surface coated with a coating layer comprising a metal and an additive.

The invention relates to metallic substrates surface coated with a coating layer comprising a metal and an additive.