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Weld defects

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Published: 01 December 2018
Fig. 6.166 Microstructural defects in weld, (a) 200×, (b) 100×, (c) 200×. (d) Microstructure of the weld, 100×. (e) Microstructure of outer surface near weld, 200×. (f) Puncture contours showing corrosion damage, 200× More
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Published: 01 November 2012
Fig. 19 Effect of volumetric defects on fatigue. (a) Slag inclusion in butt weld. Cracking from weld toe. (b) Porosity in butt weld. Cracking from weld toe. (c) Transverse groove welds containing porosity. Source: Ref 16 More
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Published: 01 November 2011
Fig. 5.26 Effect of volumetric defects on fatigue: (a) slag inclusion in butt weld, and cracking from weld toe; (b) porosity in butt weld, and cracking from weld toe; and (c) transverse groove welds containing porosity. Source: Ref 5.11 More
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Published: 01 July 1997
Fig. 6 Defects in a multipass weld made on a 107m (42 in.) diameter X-65 steel pipe. (a) Exterior view showing lack of uniformity (right arrow) and undercut (left arrow). (b) Interior view showing lack of penetration (right arrow) and burn-through (left arrow) More
Image
Published: 01 July 1997
Fig. 11 Effect of volumetric defects on fatigue. (a) Slag inclusion in butt weld. Cracking from weld toe. (b) Porosity in butt weld. Cracking from weld toe. (c) Transverse groove welds containing porosity More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430351
EISBN: 978-1-62708-253-2
... defects, forming and welding defects, design defects, improper cleaning methods, and ineffective maintenance. It also includes case studies and illustrations. boiler tubes chemical cleaning design defects forming defects material defects quality control welding defects Failures Attributed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930179
EISBN: 978-1-62708-359-1
... Abstract This article describes the repair of weld defects and failed structures. It provides information on three factors that must first be considered before attempting a repair, namely material weldability, nature of the failure that prompted the repair, and involvement of any code...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
.... It describes several welding processes, including arc welding, resistance welding, and friction stir welding, and addresses related issues such as welding defects, quality control, and stress relieving. The chapter also covers mechanical fastening techniques along with adhesive bonding and brazing...
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Published: 01 December 2018
Fig. 6.167 (a) Close-up view of the tube indicating a pinhole-size puncture surrounded by the erosion damage. (b) Inner surface view of tube-to-tube butt weld joint with weld defects and surrounding area with shallow pits More
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Published: 01 August 2005
Fig. 3 Origin (at arrow) of a single-load brittle fracture that initiated at a small weld defect. Note also a fatigue fracture in the upper right corner. Radial ridges emanate from the origin in a fan-shaped pattern. More
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Published: 01 September 2008
Fig. 50 SEM fractographs documenting the topographic features of the failed weldment. (a) Location A showing overload features. (b) Location B showing overload features. (c) Location C showing weld defect features. Original magnification: 1200× More
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Published: 30 November 2013
Fig. 10 Origin (at arrow) of a single-load brittle fracture that initiated at a small weld defect. Note also a fatigue fracture in the upper right corner. Radial ridges emanate from the origin in a fan-shaped pattern. The brittle part of the fracture is bright and sparkling, in contrast More
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Published: 30 November 2013
Fig. 2 Sketch of pattern of brittle fracture of a normally ductile steel plate, sheet, or flat bar. Note the classic chevron or herringbone marks that point toward the origin of the fracture, where there usually is some type of stress concentration, such as a welding defect, fatigue crack More
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Published: 01 November 2012
Fig. 28 Origin (at arrow) of a single-load brittle fracture that initiated at a small weld defect. Note also a fatigue fracture in the upper right corner. Radial ridges emanate from the origin in a fan-shaped pattern. The brittle part of the fracture is bright and sparkling, in contrast More
Image
Published: 01 November 2012
Fig. 20 Sketch of pattern of brittle fracture of a normally ductile steel plate, sheet, or flat bar. Note the classic chevron or herringbone marks that point toward the origin of the fracture, where there usually is some type of stress concentration, such as a welding defect, fatigue crack More
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Published: 30 November 2013
Fig. 7 Surface of a brittle fracture in a cold-drawn, stress-relieved 1035 steel axle tube. Fracture originated at a weld defect (arrow) during testing in very cold weather. Note the well-defined chevron marks located clockwise from the arrow, pointing back toward the origin. Note also More
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Published: 01 November 2012
Fig. 25 Surface of a brittle fracture in a cold drawn, stress-relieved 1035 steel axle tube. Fracture originated at a weld defect (arrow) during testing in very cold weather. Note the well-defined chevron marks clockwise from the arrow pointing back toward the origin. Note also that the steel More
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Published: 01 July 1997
Fig. 1 Defects and discontinuities in welded joints More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430147
EISBN: 978-1-62708-253-2
... to various defects Material defects due to selection of wrong material Forming and welding defects Design defects Failures related to cleaning and maintenance Each one of these failure mechanisms is discussed in the following sections of this chapter along with relevant case studies...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930039
EISBN: 978-1-62708-359-1
... to these procedures. characterization corrosion properties macrostructural characterization mechanical properties nondestructive characterization surface defects visual inspection welds WELDS CAN BE CHARACTERIZED according to a number of criteria, including the welding process used, size, shape...