Anodised magnesium alloy member, method for producing the same, and transporter comprising the same

摘要

A magnesium alloy member includes a member main body formed of a magnesium alloy containing aluminum, and an anodic oxidation coating covering at least a portion of the member main body. The anodic oxidation coating includes a porous first layer and a second layer (barrier layer) located between the first layer and the member main body and having a higher aluminum content than that of the first layer. The ratio of the thickness of the second layer with respect to the thickness of the anodic oxidation preferably is 5% or higher and 20% or lower.
The anodisation process includes a plurality of successive anodisation steps with incrementally increasing voltage in a range of 40 V to 150 V.