Strong, lightweight article containing a fine-grained...

C - Chemistry – Metallurgy – 25 – D

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C25D 3/00 (2006.01) A63B 53/10 (2006.01) A63B 53/12 (2006.01) B22F 7/04 (2006.01) B32B 15/00 (2006.01) C08J 7/06 (2006.01) C25D 1/00 (2006.01)

Patent

CA 2562977

Articles for automotive, aerospace, manufacturing and defence industry applications including shafts or tubes used, for example, as golf club shafts, ski and hiking poles, fishing rods or bicycle frames, skate blades and snowboards are at least partially coated with an electrodeposited metal, metal alloy or metal matrix composite coating layer. The coating layer having a quasi-isotropic microstructure, a thickness of higher than 30~m and an average grain size between 0.004~m and 10~m. The coating layer provides articles of high resilience, high yield strength, scratch and wear resistance and hardness, and appealing appearance.

La présente invention concerne des articles pour des applications dans l~industrie automobile, aérospatiale et de la défense qui comprennent des tiges ou des tubes utilisés, par exemple, comme tiges de clubs de golf, bâtons de ski et de randonnées pédestres, cannes à pêche ou cadres de bicyclettes, lames de patin et snowboards, qui sont recouverts au moins partiellement d~une couche de revêtement déposée par électrolyse d~un métal, d~un alliage métallique ou d~un composite à matrice métallique. La couche de revêtement de l~invention possède une microstructure presque isotrope, une épaisseur supérieure à 30 µm et une grosseur de grains moyenne qui se situe entre 0,004 µm et 10 µm. La couche de revêtement donne des articles qui possèdent une résilience, une limite d~élasticité, une résistance aux rayures et à l~usure et une dureté élevées, ainsi qu~une apparence attrayante.

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