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sectioning

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Published: 01 January 2002
Fig. 14 Sectioning of turbine blades for metallographic examination. (a) Typical locations for cross sectioning of turbine blades. (b) View of Sectioned blade More
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Published: 01 January 2002
Fig. 1 A schematic fracture surface, a sectioning plane, and the fracture profile generated by intersection of the sectioning plane with the fracture surface. Source: Ref 4 More
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Published: 30 August 2021
Fig. 79 Thermal crack revealed from further sectioning of the wheel tread sections More
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Published: 30 August 2021
Fig. 117 Sectioning plane (dashed line) through initiation area. SEM, scanning electron microscopy More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001160
EISBN: 978-1-62708-220-4
... to 200 atm. pressure for transporting, among other things, media containing chloride. The whole surface of the specimen was covered with fine branching cracks and was flaking off in many places. Fig. 1 General view of the section of a worm drive as submitted. A specimen was taken for microscopic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001729
EISBN: 978-1-62708-217-4
... of the authors [1] had established that aluminum alloys of the type used in aircraft exhibited a “reversing shear” fracture surface ( Fig. 1 ) when exposed close to an explosion center. When we examined fracture surfaces of sections from the crash, we noted the normal shear type of separation on most of them...
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
... fatigue cracks in a bellows convolute. One such crack was recently shown to have initiated from a weld heat-affected zone liquation microcrack. The crack, initially open to the outer surface of the rolled and seam welded cylindrical bellows section, was closed when cold forming of the convolutes placed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001727
EISBN: 978-1-62708-225-9
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001723
EISBN: 978-1-62708-221-1
... for important duties. In this respect, BS. 15 “Steel for General Structural Purposes” and BS.3607 “Mild Steel for General Engineering Purposes” limit the application of rimming steel to below 1 4 in. in thickness. BS.3059 and BS.3602, referring to “Tubes for Pressure Purposes,” in the sections...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001544
EISBN: 978-1-62708-219-8
... is shrouded by the arch rib, but is located at the bottom arrow. The top arrow shows the crack that propagated into the main girder. Fig. 1 Crack initiated in junction piece (bottom arrow) located behind arch rib plate, and continued through the A588 section of girder (top arrow). A close-up...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001739
EISBN: 978-1-62708-215-0
... Abstract The rear wall tube section of a boiler that had been in service for approximately 38 years was removed and examined. Visual examination of the tube revealed a small bulge with a through-wall crack. Metallography showed that the microstructure of the bulged area consisted of a few...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001240
EISBN: 978-1-62708-234-1
... by corrosion all around the rolled joint ( Fig. 1 ). In the vicinity of the steam chamber the pipe wall had oxidized through from the exterior to the interior at one spot ( Fig. 2 ). Adjoining this spot grooves caused by erosion were noticeable. Fig. 1 External surface of pipe section, seen from 2 sides...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001445
EISBN: 978-1-62708-227-3
... for examination. Transverse sections through this and the mating portion already received, followed by magnetic crack detection, revealed the presence of defective zones. Subsequent ultrasonic examination of other sections of the steam main indicated suspect areas in a number of lengths of pipe. These defects...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0047879
EISBN: 978-1-62708-234-1
... Abstract The stub-shaft assembly which was part of the agitator shaft in a polyvinyl chloride reactor, fractured in service after a nut that retained a loose sleeve around the smaller-diam section of the shaft had been tightened several times to reduce leakage. The shaft was made of ASTM A105...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0090114
EISBN: 978-1-62708-229-7
... to the cooling holes, which led to relatively high thermal stresses at the holes located at the thicker sections of the airfoil, and stress concentration of 2.5 at the cooling hole and the presence of relatively high total strain (an inelastic strain of 1.2%) at the cooling hole surface. Recommendations include...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001060
EISBN: 978-1-62708-214-3
... Abstract A type 316 stainless steel pipe reducer section failed in service of bleached pulp stock transfer within 2 years in a pulp and paper mill. The reducer section fractured in the heat-affected zone of the flange-to-pipe weld on the flange side. The pipe reducer section consisted of 250...
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Published: 01 June 2019
Fig. 5 (a) Section of lead cable from inside the detector rod at coil section 1 towards the outboard end showing spalling of the surface nitride phase; and, (b) intergranular crack in an Inconel 600 lead cable. More
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Published: 01 June 2019
Fig. 9 Weld hole, section 2 (arrow marks section of weld that did not fuse to the plug) More
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Published: 01 June 2019
Fig. 1 Section of the most damaged area (a) of a failed laser mirror. (b) Section of area shown in (a) showing corrosion product and deterioration of the base metal. 5×. (c) Corrosion product and nodules in the cooling water channels. 30×. (d) SEM showing corrosion product and intergranular More
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Published: 01 June 2019
Fig. 5 Optical micrograph of a cross section of the outer section of the attrition mill wear plate showing no gouging abrasion and little plastic deformation. Along the upper wear surface are shallow wear grooves from grinding abrasion. More