Prevention of Contrast-Induced Nephropathy With Sodium Bicarbonate

A diffusion bonding process provides a metallurgical bond between at least two metallic bodies having either iron or nickel as a component, utilizing a cobalt base alloy diffusion bondable to the metallic bodies at a temperature below the liquidus of either body but sufficient to promote interdiffusion of the cobalt alloy and metallic bodies. The bodies and alloy are contacted and subjected to the bonding temperature, whereupon solid state diffusion bonding occurs, producing a metallurgical bond which has a strength equivalent to brazing.