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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.c9001315
EISBN: 978-1-62708-215-0
...Abstract Abstract AM350 stainless steel bellows used in the control rod drive mechanism of a fast breeder reactor failed after 1000 h of service in sodium at 550 deg C (1020 deg F). Helium leak testing indicated that leaks had occurred at various regions of the welded joints between...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001351
EISBN: 978-1-62708-215-0
...Abstract Abstract A number of AISI 347 stainless steel bellows intended for use in the control rod drive mechanism of a fast breeder reactor were found to be leaking before being placed in service. The bellows, which had been in storage for one year in a seacoast environment, exhibited a leak...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001350
EISBN: 978-1-62708-215-0
...Abstract Abstract Upon arrival at the erection site, an AISI type 316L stainless steel tank intended for storage of fast breeder test reactor coolant (liquid sodium) exhibited cracks on its shell at two of four shell/nozzle fillet-welded joint regions. The tank had been transported from...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001282
EISBN: 978-1-62708-215-0
...Abstract Abstract Two AISI type 316 stainless steel components intended for use in a reducer section for sodium piping in a fast breeder test reactor were found to be severely corroded—the first soon after pickling, and the second after passivation treatments. Metallographic examination...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001370
EISBN: 978-1-62708-215-0
..., such as a corrugated periphery with step like features called ratchet marks. Fig. 3 Fracture surface, showing the region of final fast fracture Scanning Electron Microscopy/Fractography Examination of the cleaned fracture surface by scanning electron microscopy (SEM) showed multiple crack initiation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048840
EISBN: 978-1-62708-220-4
... of extensive secondary cracking and twinning where the fracture followed the line of the shroud-support ring. The twinning was identified as Neumann bands, which in ferritic steels are caused by the highly localized deformation associated with fast fracture or dynamic stresses. This led to the conclusion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001515
EISBN: 978-1-62708-229-7
... the fracture stopped at a length of about 3.7m. Small specimens were machined and tested ( 6 ) from material adjacent to the stable crack growth region and near the end of the fast fracture. A burst test of a 0.5 m section of tubing was also conducted at 30°C. The estimated critical crack length (from small...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048850
EISBN: 978-1-62708-229-7
... downshocks might cause the damage pattern that was found. A transient heat transfer and thermal-stress analysis was performed with numerical methods and software identified as CREPLACYL and with material data taken from the Liquid Metal Fast Breeder Reactor Materials Handbook (U.S. Department of Energy...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001146
EISBN: 978-1-62708-229-7
..., etc.). There were some marks (rachet-type) on the fracture surface, but these would be typical of a fast fracture. Fig. 1 Optical photograph of “as received” section NRC-1 from the Hatch #2 Vent Header. Fig. 2 Layout of bottom half of the vest header where section NRC-1 (shaded area...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001065
EISBN: 978-1-62708-214-3
... of 13 mm (0.5 in.). Scanning Electron Microscopy/Fractography Various areas around the fast-fracture edges of the specimens were examined by SEM. All of the fractures exhibited a dimpled rupture (ductile) appearance, with characteristics typical of fast ductile fracture. The examination revealed...
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
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006803
EISBN: 978-1-62708-329-4
... analyses to illustrate the standard Monte Carlo life assessment methodologies applied to dissimilar-metal welds in nuclear power plant piping systems, and advanced sampling methods using response surface and fast probability integrator methods when the response model cannot feasibly be evaluated several...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... chloride environment at 95 °C (200 °F). Cracks are branching and transgranular. (b) Caustic SCC in the HAZ of a type 316L stainless steel NaOH reactor vessel. Cracks are branching and intergranular. There are exceptions to the general rule that stress-corrosion cracks are branched. For example, some...
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
.... This is how FEA can be used to more easily analyze specific items that complicate analyses using traditional methods. This ability to analyze complex components is the reason for the proliferation of FEA as a design tool. The size and complexity of models that are routinely analyzed is increasing as fast...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006812
EISBN: 978-1-62708-329-4
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006773
EISBN: 978-1-62708-295-2
... of models that are routinely analyzed is increasing as fast as the computing speed and data storage capacity of computer workstations. Today (2020), it is not uncommon for large 3D solid models to be solved on PC-based computing systems. Figure 4 shows an example of just such a 3D model that can...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003545
EISBN: 978-1-62708-180-1
... with increasing rupture time and temperature. Ductility data typically show a minimum, initially increasing above room-temperature ductility, then going through a minimum, then increasing again, and finally dropping very fast near the melting point. The increase above the minimum in the curve is often assumed...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... with increasing rupture time and temperature. Ductility data typically show a minimum, initially increasing above room-temperature ductility, then going through a minimum, then increasing again, and finally dropping very fast...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
.... , Fretting in Aqueous Media, Particularly of Roping Steels in Seawater , Wear , Vol 106 , 1985 , p 225 – 260 81. Lewis M.W.J. and Campbell C.S. , Fretting and Wear of Stainless and Ferritic Steels in Liquid-Metal Fast Breeder Reactor Steam Generators , Nucl. Technol. , Vol 55...