| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a magnesium alloy member superior in corrosion resistance. <P>SOLUTION: The magnesium alloy member has a tabular substrate which includes a magnesium alloy having an aluminum content of 4.5-11 mass%. The substrate includes fine precipitates of 10 pieces or more containing both Mg and Al in the area of 20μm×20μm at least in the surface layer region, when the surface layer region is defined as a region from the surface of the substrate down to 20μm in a thickness direction. Each fine precipitate has the maximum diameter of 0.5-3μm. The magnesium alloy member has superior corrosion resistance because at least the surface layer region is formed of a microstructure in which the fine precipitates are dispersed, and can be used for a housing and the like without being subjected to anti-corrosion treatment. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
