Patent ID: 9103010
Filing Date: 2015-08-11
Classification: B22D,C22C,C22F,C23C,Y10T

Abstract:
1. A magnesium alloy structural member, comprising: a magnesium alloy substrate that contains more than 7.5% by mass of Al; and an anticorrosive layer formed on a surface of the substrate by chemical conversion treatment, wherein the substrate contains precipitate particles dispersed therein, the precipitate particles have an average particle size of 0.05 μm or more and 1 μm or less, the total area of the precipitate particles in a cross section of the magnesium alloy structural member accounts for 1% or more and 20% or less of the cross section, and the anticorrosive layer includes a lower sublayer adjacent to the substrate and a surface sublayer formed on top of the lower sublayer, the surface sublayer being denser than the lower sublayer.