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flux inclusions

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0047545
EISBN: 978-1-62708-236-5
... reflectors, indicating the presence of slag inclusions and porosity. A low-carbon steel flux-cored filler metal was used in repair welding the crankshaft, without any preweld or postweld heating. This resulted in the formation of martensite in the HAZ. The repair weld failed by brittle fracture, which...
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
... that will prevent wetting and capillary flow of the molten braze filler metal. Anomalies such as porosity, voids, inclusions, and lack of braze filler metal (incomplete brazing) can be eliminated or minimized by implementing compatible cleaning operations before assembly and brazing. The use of fluxes or salts...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0089696
EISBN: 978-1-62708-220-4
... (EDS) that shows the high titanium content of one of the slag inclusions. Welding flux was suspected to be the source of the titanium. Fig. 8 EDS spectrum illustrating the presence of slag. Metallography The microstructure in the casting was generally found to be tempered martensite...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001089
EISBN: 978-1-62708-214-3
... obtained by standardless energy-dispersive spectroscopy (EDS) that shows the high titanium content of one of the slag inclusions. Welding flux was suspected to be the source of the titanium. Fig. 8 EDS spectrum illustrating the presence of slag. Metallography The microstructure...
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
... electron beam welds electroslag welds fatigue fitness-for-service assessment flash welds friction welding high-frequency induction welds inclusions joint design laser beam welds mechanical testing porosity upset butt welds weld discontinuity weldment failure weldment integrity WELDMENT...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001534
EISBN: 978-1-62708-220-4
... to 241 K. It was reported that the failed pipe had been welded to the dished end by shielded metal arc welding using AWS E 6013 flux-coated electrode with a recommended moisture content of less than 1%. Before being placed in operation, the welded pipe was hydrostatically tested at a pressure of 3.2...
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
... of arc welds. Mechanical and environmental failure origins related to other types of welding processes are also described. The article explains the cause and effects of process-related discontinuities including weld porosity, inclusions, incomplete fusion, and incomplete penetration. Different fitness...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001109
EISBN: 978-1-62708-214-3
... Abstract Grate bars in the traveling grate indurators in several taconite processing units suffered excessive corrosion following a conversion from acid to fluxed pellet production procedures. The campaign life of the HH grade cast stainless steel bars was reduced from more than 7 years...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001611
EISBN: 978-1-62708-219-8
... in. The welding orientation represents a combination of geometries 11 and 12, as characterized in Ref 1 . The 3.25 in. flange was beveled to comply with American Welding Society (AWS) D1.1-00 2 requirements, and the joining was completed with multiple weld passes using the flux cored arc welding (FCAW) process...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
...: Nonmetallic inclusions; slag, dross, flux G 121 (a) Nonmetallic inclusions whose appearance or analysis shows they arise from melting slags, products of metal treatment or fluxes Slag, dross or flux inclusions, ceroxides G 122 (a) Nonmetallic inclusions generally impregnated with gas...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001003
EISBN: 978-1-62708-227-3
... flux. The embrittlement was shown to be caused by the flow of corrosion generated hydrogen which converted the cementite to methane which nucleated voids in the steel. A thermodynamic estimate indicated that a small amount of chromium would stabilize the carbides against decomposition by hydrogen...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006822
EISBN: 978-1-62708-329-4
... under a granulated flux that protects the arc and molten pool from the atmosphere and modifies the weld-metal chemical composition through the addition of alloying elements or the control of the weld-metal oxygen and inclusion content through the basicity index of the flux. Because of the use...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
... Composition approximates that of the alloy cast but nearer to that of a eutectic G 120 Nonmetallic inclusions; slag, dross, flux G 121 (a) Nonmetallic inclusions whose appearance or analysis shows they arise from melting slags, products of metal treatment or fluxes Slag, dross or flux...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001527
EISBN: 978-1-62708-224-2
... boundaries are not easily resolved. Relatively low levels of nonmetallic inclusions are required in high quality rope wires, to provide better fatigue resistance and more uniform mechanical properties. Fig. 2 Typical longitudinal (left) and transverse (right) microstructure of high strength steel wire...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... failure analysis or incomplete root-cause investigation can be very misleading or even dangerous. Ductile fracture occurs from the nucleation, growth, and coalescence of microvoids during deformation. Second-phase particles and inclusions typically provide the nucleation sites for initiation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... in relationship with cracks, inclusions, etc., affecting induced eddy currents in the material. Material identification, crack detection/sizing to 1–2 mm (0.04–0.08 in.), erosion, corrosion, pitting, wall thinning on thin-wall material, surface profiling Absolute measure difficult. Normally for qualitative...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... the nucleation, growth, and coalescence of microvoids during deformation. Second-phase particles or inclusions typically provide the nucleation sites for initiation of the microvoids, which then grow and coalesce as deformation progresses further. Ductile fracture by void growth and coalescence can occur by two...
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
... and polished-and-etched samples by optical and electron microscopy forms a significant part of the failure investigation. Besides providing information on various microstructural features, such as cracks, porosity, inclusions, segregation, phase distribution, and others, it also reveals the effect...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001820
EISBN: 978-1-62708-180-1
... failures Defects in the pipe body Mechanical damage Fatigue cracks Material defects Longitudinal weld defects Submerged arc welds Weld-area cracks Incomplete fusion Porosity Slag inclusions Inclusions at skelp edge Off seam Repair welds Incomplete...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001396
EISBN: 978-1-62708-229-7
... attack has taken place at butt welds in water-wall tubes, particularly those situated in zones of high heat flux. To prevent on-load corrosion an adequate flow of water must occur within the tubes in the susceptible regions of a boiler. Corrosion products and suspended matter from the pre-boiler...