B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 15/01 (2006.01) B32B 15/18 (2006.01) B32B 15/20 (2006.01) C10G 9/16 (2006.01) C10G 75/00 (2006.01) C23C 30/00 (2006.01)
Patent
CA 2617744
A composite material intended for components used in corrosive environments, wherein said material comprises a corrosion-resistant part (1) and a load-bearing part (2), wherein said parts (1, 2) are disposed adjacent one another, wherein the corrosion- resistant part is a copper-aluminium alloy (Cu/Al) and wherein the load-bearing part is comprised of an iron-based (Fe), a nickel-based (Ni) or a cobalt-based (Co) alloy. The invention is characterized in that the diffusion barrier (3) is disposed between the corrosion-resistant part (1) and the load-bearing part (2), and in that the diffusion barrier (3) contains one of the substances chromium (Cr) or iron (Fe) or iron (Fe) that contains one of the alloying substances chromium (Cr) or carbon (C).
La présente invention concerne une substance composite destinée à des composants utilisés dans des environnements corrosifs. Ladite substance composite comprend une partie résistante à la corrosion (1) et une partie porteuse de charge (2), lesdites parties (1, 2) étant disposées à côté l'une de l'autre. La partie résistante à la corrosion est un alliage cuivre-aluminium (Cu/Al) et la partie porteuse de charge comprend un alliage à base de fer (Fe), à base de nickel (Ni) ou à base de cobalt (Co). L'invention est caractérisée par le fait qu'une barrière de diffusion (3) est disposée entre la partie résistante à la corrosion (1) et la partie porteuse de charge (2) et par le fait que la barrière de diffusion (3) contient l'une des substances chrome (Cr) ou fer (Fe) ou fer (Fe) qui contient l'une des substances d'alliage chrome (Cr) ou carbone (C).
Goransson Kenneth
Lundberg Mats
Gowling Lafleur Henderson Llp
Sandvik Intellectual Property Ab
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