To provide a magnesium alloy member superior in corrosion resistance.
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 20 μm×20 μm 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 20 μm in a thickness direction. Each fine precipitate has the maximum diameter of 0.5-3 μm. 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.
COPYRIGHT: (C)2010,JPO&INPIT
NUMANO MASASADA
KAWABE NOZOMI
KITAMURA TAKAHIKO
OISHI YUKIHIRO
| JPH0578775A | 1993-03-30 | |||
| JP2006152401A | 2006-06-15 | |||
| JP2007098470A | 2007-04-19 | |||
| JP2008163398A | 2008-07-17 |
| WO2008029497A1 | 2008-03-13 |