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dissimilar metal welding

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Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001311
EISBN: 978-1-62708-215-0
... the inside surface of a tube in an area above the level of uniform corrosion, showing localized dissimilar-metal corrosion to a depth of 0.38 mm (0.015 in.) in the base metal at an interface with the weld seam. Note the dendritic microstructure of the weld. Electroetched in oxalic acid. 49.4× Fig. 4...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001352
EISBN: 978-1-62708-215-0
... Cracks(fracturing) Dissimilar metals, welding Weld defects Welded joints Welding parameters AFNOR Z30C13 Joining-related failures Handbook of Case Histories in Failure Analysis, Volume 2 Copyright © 1993 ASM International® K.A. Esaklul, editor All rights reserved DOI: 10.31399/asm.fach.v02...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001749
EISBN: 978-1-62708-215-0
... to prevent similar accidents. Dissimilar metals Oxyacetylene welding Welding machines Carbon steel (Other, miscellaneous, or unspecified) failure Galvanic corrosion Handbook of Case Histories in Failure Analysis, Volume 2 Copyright © 1993 ASM International® K.A. Esaklul, editor All rights...
Image
Published: 01 December 1993
Fig. 3 Typical section through the inside surface of a tube in an area above the level of uniform corrosion, showing localized dissimilar-metal corrosion to a depth of 0.38 mm (0.015 in.) in the base metal at an interface with the weld seam. Note the dendritic microstructure of the weld More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0091362
EISBN: 978-1-62708-220-4
..., it is important to remember that corrosion resistance is not the only criterion when evaluating these new ferritic stainless steels. Welds must also be tough and ductile. Lastly, dissimilar weld filler metals can be successfully used. To avoid premature failure, the dissimilar combination should be corrosion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0048808
EISBN: 978-1-62708-228-0
... “Hardfacing, Weld Cladding, and Dissimilar Metal Joining” in Welding, Brazing, and Soldering , Volume 6 of the ASM Handbook ). The precipitates followed the austenitic regions into the duplex structure and eventually disappeared. They undoubtedly contributed to the cracking that occurred...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0089730
EISBN: 978-1-62708-233-4
... elements in areas adjacent to that area. In addition, the intersection of the two welds contained cracks similar in appearance to those normally formed when variations in thermal expansion and contraction are encountered when welding dissimilar metals. A microhardness traverse across the weld area...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006808
EISBN: 978-1-62708-329-4
... or rejection in new construction inspection are also discussed. The article discusses the types of base metal cracks and metallurgical weld cracking. The article discusses the processes involved in the analysis of in-service weld failures. It briefly reviews the general types of process-related discontinuities...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001793
EISBN: 978-1-62708-241-9
...Chemical composition of pipe, wire, and weld metal (wt.%) Table 1 Chemical composition of pipe, wire, and weld metal (wt.%) Material C Si Mn P S Cr Ni Mo Cu Al V Pipe 0.125 0.17 0.48 0.017 0.0086 0.20 0.16 0.04 0.144 0.026 <0.001 Wire 0.147 0.008 0.47...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
.... Dissimilar-metal crevices, such as at threaded connections, are to be avoided, if possible. Crevices should be sealed, preferably by welding or brazing, although putties are sometimes used effectively. Replaceable sections of the more active member should be used at joints, or the corrosion allowance...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
..., and crevice corrosion can all be exacerbated by galvanic conditions. Galvanic corrosion occurs when two dissimilar conducting materials (metallic or nonmetallic) are in electrical contact with an electrolyte or conducting medium. It usually consists of two dissimilar conductors in electrical contact...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006828
EISBN: 978-1-62708-329-4
... metals to ceramics. Procedures for brazing various materials such as cast irons, steels, stainless steels, heat-resistant alloys, aluminum alloys, titanium alloys, copper alloys, reactive and refractory metals, and carbon and graphite are described in Welding, Brazing, and Soldering , Volume 6...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001570
EISBN: 978-1-62708-220-4
... if the temperature is sufficiently high. The formation of titanium hydrides becomes significant as the hydrogen content increases above approximately 20 ppm 7 . The hydriding of titanium occurs at higher rates with increasingly higher titanium-dissimilar metal area ratio in the galvanic couple 9...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001054
EISBN: 978-1-62708-214-3
... in tests conducted in air saturated with water vapor at zero applied stress Dissimilar metals, bonding Pressure welding Stainless steels, bonding Welded joints, corrosion Silver Stress-corrosion cracking Handbook of Case Histories in Failure Analysis, Volume 1 Copyright © 1992 ASM...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001816
EISBN: 978-1-62708-180-1
... in tube metal temperatures. In a superheater or a reheater, such temperature increases can lead to premature creep failures, dissimilar-metal weld failures, and accelerated ash corrosion or oxidation. In furnace walls, deposits may also lead to hydrogen damage (additional information is provided...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1
... at the weld toe Cracks—hot or cold, longitudinal or transverse, crater and at weld toe Gas porosity Arc strike Spatter Backing piece left on: failure to remove material placed at the root of a weld joint to support molten weld metal Subsurface features that are causes for rejection...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001420
EISBN: 978-1-62708-220-4
... between the lining and the basket had played more than a minor part in their development. They arose largely as a result of electrochemical action due to the contact of two dissimilar metals. The solution potential of Monel metal is of the order of −0.17 volts, while that of the steel would probably...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006813
EISBN: 978-1-62708-329-4
... locally by an electric potential difference between two electrically dissimilar metals in the system in the presence of an electrolyte Pitting corrosion: A form of localized autocatalytic corrosion due to pitting that results in holes in the metal Stress corrosion: Leads to localized cracks...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1
... to wrought Monel pipe. Metallographic examination disclosed many small microfissures in the weld metal, but no microfissures were found in the HAZs of the wrought Monel. This section of line contained high thermal stresses that resulted from injection of steam a short distance upstream from the coupling...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006825
EISBN: 978-1-62708-329-4
... to overheating, creep, graphitization, and situations having dissimilar-metal welds are generally characterized as sudden tube rupture or stress-rupture failures. An upset in any component of the heat-flow path across the tube during the course of boiler operation can disturb the heat balance, amounting...