| 摘要 |
PROBLEM TO BE SOLVED: To provide machine parts which are composed of titanium, aluminum, magnesium or alloys composed thereof as principal components and are additionally excellent in resistance to corrosion and wear while lightness in weight and thermal conductivity are maintained. SOLUTION: The machine parts are composed of a base material of the alloy consisting of one or more kinds of light metals or light metal elements as principal components and have the oxide films of the light metal elements of hardness above 8 Gpa on their surfaces. The light metal oxide films are formed by being subjected to an anodic electrolysis treatment in an alkaline solution. COPYRIGHT: (C)2006,JPO&NCIPI
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