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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
...Abstract Abstract A detailed failure analysis was conducted on an ammonia refrigerant condenser tube component that failed catastrophically during its initial hours of operation. Evidence collected clearly demonstrated that the weld between a pipe and a dished end contained a sharp unfused...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
... analysts of methodologies and tools for the more common life-limiting, elevated-temperature failure mechanisms. Gas turbine blades and piping and tubing components were selected to demonstrate typical life assessment approaches for common elevated-temperature failure mechanisms, although the failure...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001696
EISBN: 978-1-62708-234-1
... of the tube and ranged from superficial to severe, with some pits extending through 75% of the tube's wall thickness. The SCC emanated from the pits and further reduced the service strength of the component until it could no longer sustain the operating pressure and final catastrophic fracture occurred...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048772
EISBN: 978-1-62708-220-4
... the scale. It was recommended that material that is intended for critical applications where failure cannot be tolerated should be non-destructively examined. Inclusions Pressure vessels Trialefin Tube components ASTM A213 grade T11 UNS K11597 Stress-corrosion cracking After 2 years...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001688
EISBN: 978-1-62708-234-1
... in each case. Decarburization Superheaters Tube components ASTM A209 Creep fracture/stress rupture Intergranular corrosion High-temperature corrosion and oxidation The authors have been involved in the examination of many failed superheater components and the two examples given here...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001312
EISBN: 978-1-62708-215-0
.... Hydrostatic testing at a pressure times greater than the maximum operating pressure prior to placing the component in service was also suggested. Condenser tubes Condensers (liquefiers) Refrigerating machinery Cu-0.04Sn-0.02Al Ductile fracture Background Visual Examination of General Physical...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001775
EISBN: 978-1-62708-241-9
... industry. The component under examination, shown in Fig. 1 , is a bent tube (elbow) that is used to transfer a mixture of gaseous hydrocarbons into a burner at the end of a process line. The fuel gas also contains hydrochloric acid (HCl), which is scrubbed off by reacting with a caustic NaOH solution...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001406
EISBN: 978-1-62708-229-7
... found its way past the tube expansions. This indicated that this operation had not resulted in a satisfactorily tight joint. Boiler tubes Caustic cracking Leakage Sodium hydroxide Tube components Fe-0.11C-0.46Mn Intergranular fracture Stress-corrosion cracking Caustic cracking...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001536
EISBN: 978-1-62708-229-7
... in the forged elbow and wedge components contributed to the axial orientation of the cracks. 4.2 Failure of Canopy Seal Welds in Adapter Tube Assemblies in a PWR Control Rod Drive Head The problem of IGSCC in recirculation coolant system piping is peculiar to BWRs, because the dissolved oxygen content...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001658
EISBN: 978-1-62708-229-7
... was not known; bulk chemical analysis had simply shown that iron was a major component. Optical microscopy and electron microprobe analysis were used to identify the deposits. In the first instance, the deposit was found to be debris that was left in the reheater tubes during boiler modification and swept...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001545
EISBN: 978-1-62708-236-5
... carbide. Failure was actually caused by overload. Had the original conclusion been accepted, a relatively exotic alloy would have been specified. In another case, brass heat exchanger tube failure was automatically attributed to attack by an acidic cleaner, and a decision was made to stop using...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0089722
EISBN: 978-1-62708-217-4
...Abstract Abstract A welded elbow assembly (AISI type 321 stainless steel, with components joined with ER347 stainless steel filler metal by gas tungsten arc welding) was part of a hydraulic-pump pressure line for a jet aircraft. The other end of the tube was attached to a flexible metal hose...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001392
EISBN: 978-1-62708-231-0
... in an oxidizing or corrosive environment. The cracking in this particular case was due principally to the inordinately large gap between the components. Additionally, several of the sealing welds of the tubes to the back tube plate were cracked in a radial manner, and it would appear that in addition, abnormal...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0047181
EISBN: 978-1-62708-233-4
...Abstract Abstract Hydraulic cylinder housings were being fabricated from 4140 grade seamless steel tubing. During production, magnetic-particle inspection indicated the presence of circumferential and longitudinal cracks in a large number of cylinders. Analysis (visual inspection, dye penetrant...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0089258
EISBN: 978-1-62708-218-1
.... The manufacturing method used to create the bulb shape was hydroforming, using a 300 series stainless steel tube in the full-hard condition. The leak was attributed to a crack in the sleeve in the radius between the bulb area and the cylindrical portion of the sleeve. Fatigue cracks initiated at multiple sites near...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0046057
EISBN: 978-1-62708-225-9
...Abstract Abstract After less than 30 days in service, several cadmium-plated retaining rings, made of 4140 steel tubing and heat treated to 36 to 40 HRC, broke during operation that included holding components of a segmented fitting in place under a constant load. Photographic and 100x nital...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001587
EISBN: 978-1-62708-217-4
... components were parts of the jackscrew assembly, including the jackscrew with an internal torque tube, the gimbal nut, and the upper and lower mechanical stops. In the MD-80 series aircraft design, the jackscrew is connected to the horizontal stabilizer and controls movement of the horizontal stabilizer...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001328
EISBN: 978-1-62708-215-0
... while the reformer is in service. The tubes are supported at the top by concrete counterweights The components had seen about 50,000 h (5.7 years) of service at about 850 °C (1562 °F). Tubes were originally manufactured in accordance with fabricator specifications, which closely adhered...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0090277
EISBN: 978-1-62708-229-7
... reactors Residual stresses Steam generators Tube components Tubes Inconel 600 UNS N06600 Intergranular fracture Stress-corrosion cracking A steam generator is a key component used in the generation of steam in a closed-cycle pressurized-water nuclear power plant. It is essentially a large heat...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003526
EISBN: 978-1-62708-180-1
... in the head/shell interface. Source: Ref 11 Fig. 9 Cross-section schematic drawing of a steam generator showing U-tube bundle Fig. 10 Three-dimensional finite element analysis (FEA) model of U-tube showing effects of thermal gradients, internal pressure, and tube leg displacement...