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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001580
EISBN: 978-1-62708-229-7
...Abstract Abstract Laser surface mapping of a canister closure weld provided data that was used to generate three-dimensional images of the weld failure. These images were invaluable in that they allowed people who did not have access to the canister to see the anomaly in great detail...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047720
EISBN: 978-1-62708-217-4
...Abstract Abstract Airfoil-shape impingement cooling tubes were fabricated of 0.25 mm (0.010 in.) thick Hastelloy X sheet stock, then pulse-laser-beam butt welded to cast Hastelloy X base plugs. Each weldment was then inserted through the base of a hollow cast turbine blade for a jet engine...
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
... welding processes. The article also describes failure origins in other welding processes, such as electroslag welds, electrogas welds, flash welds, upset butt welds, flash welds, electron and laser beam weld, and high-frequency induction welds. arc welding brittle fracture electrogas welds...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001840
EISBN: 978-1-62708-241-9
... A. : Laser cladding of aerospace materials . J. Mater. Process . 122 , 63 – 68 ( 2002 ) 10.1016/S0924-0136(01)01121-9 3. Dinda G.P. , Dasgupta A.K. , Mazumder J. : Laser aided direct deposition of Inconel 625 superalloy: microstructural evolution and thermal stability . Mater...
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
... for dimensional anomalies, color variation, cracks, pits, etc. Only sensitive to surface flaws Low cost, intuitive. May be enhanced with PT, MT, IR, UV, laser reference lines, video, and magnifying lenses All Thermal/infrared (IR)—includes passive thermal inspections, flash thermography, and laser flying...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006768
EISBN: 978-1-62708-295-2
... Characterization Using X-Ray Diffraction Techniques, Applications on Welds ,” American Society of Mechanical Engineers Conference (Atlanta) , 2001 40. Pineault J.A. , Brauss M.E. , and Eckersley J.S. , Residual Stress Characterization of Welds Using X-Ray Diffraction Techniques , Welding...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006758
EISBN: 978-1-62708-295-2
... component, the case may be that only the amount of wear or electrical connection may be of importance and other parts such as the casing or mounting points may not have as much relevance. In other instances, a material defect, weld defect, or machining defect may turn out to be the factor in allowing...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001682
EISBN: 978-1-62708-229-7
... be improved by using a high energy density welding process such as laser beam welding to further reduce heat input . These steps would reduce the number and size of potential microcracks to act as fatigue crack initiation sites. ...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003569
EISBN: 978-1-62708-180-1
...: Ref 35 Fig. 19 Erosion rate of ceramics with different grain size (frequency = 20 kHz; distance between specimen and vibration horn = 1 mm; vibration amplitude = 50 μm; temperature = 25 °C; liquid: ion-exchanged water). Source: Ref 37 Fig. 21 Erosion rate of laser-modified 316...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006759
EISBN: 978-1-62708-295-2
... at the micro level. Another technique desirable in failure analysis is combining stereomicroscopic images with scanning electron microscopy to perform further chemical analysis. Laser-induced breakdown spectroscopy within optical microscopes allows for chemical fingerprinting directly from a color image...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
...) Continuous welding is necessary for horizontal stiffeners to prevent the formation of traps and crevices. (j) Square sections formed from two L-shaped members require continuous welding to seal out the external environment. Source: Ref 5 Fig. 9 Impressed-current cathodic protection of a buried...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001819
EISBN: 978-1-62708-241-9
... L.M. , Mateo M.P. , Laserna J.J. : Large area mapping of non-metallic inclusions in stainless steel by an automated system based on laser ablation , Spectrochim. Acta Part B , 59 , 567 – 575 ( 2004 ) 17. Perkins K.M. , Bache M.R. : The influence of inclusions...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003536
EISBN: 978-1-62708-180-1
... and Shape of Features in the Fracture Surface Area Fraction of Features in Fracture Surface Electron Backscatter Diffraction (EBSD) for Fracture Surface Crystallography Three-Dimensional Laser Confocal Scanning Microscopy Vertical Serial Sectioning of Fracture Surface and Associated Local...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
..., fretting, and wear. (h) Structural supports should allow good drainage; use of a slope at the bottom of the member allows liquid to run off, rather than impinging directly on the concrete support. (i) Continuous welding is necessary for horizontal stiffeners to prevent the formation of traps and crevices...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006793
EISBN: 978-1-62708-295-2
... 175 – 185 10.1016/0043-1648(85)90132-2 34. Slatter T. , Taylor H. , Lewis R. , and King P. , The Influence of Laser Hardening on Wear in the Valve and Valve Seat Contact , Wear , Vol 267 , 2009 , p 797 – 806 10.1016/j.wear.2009.01.040 35. Tianmin S...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
... (NORDTRIB2004) , 2004 , p 699 – 707 103. Persson D.H.E. , Jacobson S. , and Hogmark S. , Effect of Temperature on Friction and Galling of Laser Processed Norem 02 and Stellite , Wear , Vol 255 , 2003 , p 498 – 503 10.1016/S0043-1648(03)00122-4 104. Wilkund U...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003524
EISBN: 978-1-62708-180-1
... of background data on the manufacturing and fabricating history of a component should begin with obtaining specifications and drawings and should encompass all the design aspects of the failed part as well as all manufacturing and fabrication details—machining, welding, heat treating, coating, quality-control...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006755
EISBN: 978-1-62708-295-2
... cause can usually be discovered. Functional failure of processes such as heat treatment, coating, plating, welding, mail delivery, or airline scheduling can be more complex, and the determination of the root cause is also more complex. In addition, the cause-and-effect relationship for processes may...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001578
EISBN: 978-1-62708-233-4
... studs in the thrust canceling struts were sliding into the struts. This was the result of failed welds on large nuts located on the backside of the strut end plates. The net result of the failure was that atmospheric pressure, which was being applied to the six ft diameter end cap, was pushing on the 20...