Weld Overlay for Corrosion Protection of Continuous Digesters, 2002 Fall Technical Conference
Stainless steel weld overlay is typically applied for protection of carbon steel digesters from corrosion. This paper
explains the various materials and welding processes that can be used, the modes of application, the locations where
weld overlay can be applied, areas where overlay is not recommended, problems encountered during application
such as hot cracking, and the quality assurance measures necessary to ensure that the overlay is sound. Several case
histories of successful overlay applications are described.