Search Results for Pipe, corrosion

Fig. 12(a) Fracture surface of reheat steam pipe showing corrosion products covering early-fracture region and freshly exposed fracture surface of weld metal. More

Fig. 17 Secondary cracking in pipe surface adjacent to stress-corrosion cracks shown in Fig. 16 . Actual size. See also Fig. 18 and 19 . More

Fig. 18 Macrograph of unetched section through stress-corrosion cracks in line pipe. See also Fig. 16 , 17 , and 19 . More

Fig. 2 Pitting corrosion of 316L stainless steel pipe. (a) View of pitting on the outside-diameter surface at the leak location. (b) View of the inside-diameter surface, where the pit size was larger at the leak location. There was a rusty discoloration along the bottom of the pipe. (c) Cross More

Fig. 41 Graphitic corrosion of a gray cast iron sewer pipe section removed from the mud bottom of a seawater bay. Graphitic corrosion on the outside diameter surface is apparent for approximately 25% of the wall thickness. Courtesy of S.R. Freeman, Millennium Metallurgy, Ltd. More

Fig. 46 Photograph of the inside of a stainless steel pipe with corrosion pits. The pipe was from a fire-sprinkler system for a car and passenger ferry boat. More

Fig. 16 Stress-corrosion cracks in steel pipe weld. (a) Magnetic particle enhancement of cracks in the weld of an equalizer line elbow section. Cracks were localized in the weld and HAZs. (b) Cracks initiated on the inside surface and propagated through the weld in a multiple branching mode. More

Fig. 18 Cross sections of pipe-to-elbow welds showing stress-corrosion cracks originating from the inside surface of the weld metal and the base metal More

Fig. 4 Erosion- and corrosion-attacked tubes of a biomass-fired boiler pipe panel. Sample courtesy of Häuser & Co. GmbH, Duisburg, Germany. More

Fig. 5 Galvanic corrosion of steel pipe at brass fitting in humid marine atmosphere. Courtesy of R. Baboian, Texas Instruments, Inc. More

Fig. 3 Cross sections of pipe-to-elbow welds showing stress-corrosion cracks originating from the inside surface of the weld metal and the base metal. ID, inside diameter. Source: Ref 10 More

Fig. 13 Anaerobic biological corrosion of cast iron. (a) Cast iron pipe section exhibiting external pitting caused by bacteria. (b) Cast iron pipe showing penetration by bacteria-induced pitting corrosion. Source: Ref 10 More

Fig. 6 Microbiologically influenced corrosion in a water pipe due to sulfate-reducing bacteria More

Fig. 8 Corrosion of a mortar-lined ductile iron wastewater pipe More

Fig. 15 (a) Erosion in copper pipe. (b) Erosion pit with no corrosion product visible. (c) Erosion on the outside diameter of austenitic stainless steel heat-exchanger tube. (d) Section through same tube shown in (c). (e) Section through same tube shown in (c) and etched with electrolytic More

Fig. 41 Graphitic corrosion of a gray cast iron sanitary sewer pipe section removed from a high-rise commercial building. (a) Top of pipe section cracked longitudinally due to severe graphitic corrosion. (b) Graphitic corrosion on the inside diameter pipe surface is apparent for approximately More

Fig. 46 Photograph of the inside of a stainless steel pipe with corrosion pits. The pipe was from a fire-sprinkler system for a car and passenger ferry boat. More

Fig. 18 Photographs of stress-corrosion cracking (SCC) (arrows) in a steel pipe weld. (a) Magnetic-particle enhancement of SCC in the weld of an equalizer line elbow section. (b) Stress-corrosion cracks initiated on the pipe inside-diameter surface (right side of photograph) and propagated More

Fig. 11 Metallurgical cross section of graphitic corrosion of old cast iron pipe. Gray, dull areas indicate where iron has been leached out of the pipe wall. More

Fig. 10 Corroded cast iron pipe. Courtesy of Corrosion Probe, Inc. More