Erosion Resistance of Infiltration Brazed Tungsten Carbide Cladding, 2005 Engineering, Pulping & Enviornmental Conference

Infiltration brazed tungsten carbide wear protection, as an alternative to weld overlay, has been shown to be superior in pulp and paper mill applications, where severe erosion, corrosion and abrasion are the primary mechanisms of failure. A material’s erosion resistance is determined by several factors, including the size and spacing of the material’s hard particles and the method of application. Other important variables include the characteristics, impact angle, and velocity of the eroding media.

This paper discusses the advanced erosion, abrasion, and corrosion-resistant characteristics of three infiltration brazed tungsten carbide claddings as compared to common wear protection materials using standardized laboratory testing methods. This paper will also review field results from various infiltration brazed tungsten carbide cladding applications, including a pump installed at the underflow of a white liquor clarifier, a power boiler induced draft fan, and a conveyance system transporting glass-filled plastic compounds.