... the same amount of depletion as was observed in field exposed shot peened tubes. steam oxidation shot peen stainless steel boiler tube INTRODUCTION Problems arise on the steamside due to the effect of H₂O in accelerating the oxidation rate of ferritic-martensitic (FM) and austenitic steels...

... and the conditions under which ER33-31 should be considered are reviewed in this paper. Coal Ash Corrosion Boiler Tube Weld Overlay Coal Boiler Er33-31 ERNiCr-4 BACKGROUND Superheaters in coal fired power plants are used to heat saturated steam from the boiler to higher temperatures in order to provide a dry...

...Boiler Tube Caustic Gouging Internal Corrosion Steam Blanketing Under-deposit Corrosion Overheating Circulation Water Treatment Waterside Deposits INTRODUCTION Abstract Numerous boiler tube failures occurred recently in the furnace wall roof area, in an O-type package boiler at a mid-size...

... of unscheduled and non-routine maintenance events. The employment of High Temperature Ceramic Coating Technology in the power generation industry has proven to be an effective means of protecting the underlying boiler tube material from erosive and corrosive material losses and has afforded additional benefits...

... at higher temperatures than the carbon steel because of the alloying additions of chromium and molybdenum that give the low alloy steel more higher temperature creep and oxidation resistance. Case Study 1: Oxide Thickness of a T22 Superheater Tube Abstract A glossary of boiler tube microstructures...

..., since it does not require pressure part modifications ( 2 ) Boiler tubes in plants operating with low NOx burners have now reported corrosion rates of 30 to 80 mpy (0.8 to 2.0 mm/y) ( 3 - 4 ). Abstract Many utilities are choosing to use controlled combustion methods to reduce NOx emissions...

... corrosion waste-to-energy plant boiler tube corrosion-resistant materials spray coating weld overly service life waste gasification corrosion mechanism alloying element thermal decomposition INTRODUCTION In order to establish an advanced recycling-oriented society, the development of highly...

.... The effects of erosion temperature on Vc's of the oxide scales were compared and discussed with their Vickers hardness measured at high temperatures. high temperature corrosion erosion-corrosion PFBC boiler oxide scale boiler tube Vickers hardness INTRODUCTION Metal wastage by erosion-corrosion attack...

...Abstract An overview with some details of the form of boiler tube failure known as phosphate corrosion is given. Included are a review of boiler phosphate chemistry, an assessment of the factors generally implicated as causative in phosphate corrosion, a description of key factors in identifying...

...According to several field and laboratory test data ^{1 - 7} in FBC environments, formation of oxide scale on boiler tube surface was found to provide some protection to the erosion attack. For example, in the demonstration PFBC plant at Grimethorpe, some regions of low wastage were...

...Abstract Case histories in which boiler tube failures resulted from a combination of steam blanketing and underdeposit corrosion are reviewed. Steam blanketing originates from inadequate circulation and commonly occurs in horizontal or sloped boiler tube circuits in the roof of a boiler. It can...

...(4b) 2 Cu 0 + OH − ⇆ Cu 2 O + H + + 2 e − Abstract Unusual case histories are presented in which boiler tube failure mechanisms involved copper deposition on waterside surfaces. Three case histories on copper-induced liquid metal embrittlement (LME) are reviewed...