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Radiation damage

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001632
EISBN: 978-1-62708-234-1
...Abstract Abstract A double-walled, hemispherical metal beam exit window made of alloy 718 developed a crack during service, leading to coolant leakage. The window had been exposed to radiation damage from 800 MeV protons and a cyclic stress from 600 MPa tensile to near zero induced by numerous...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0048039
EISBN: 978-1-62708-219-8
... types of fractures: flat-type fractures were observed in 1.2 and 1 mm diam wires and cup-and-cone fractures were observed in 0.6 mm diam wires. A nick observed in the side of one of the larger wires was found to be rusted. Beach marks radiating inward, indicative of fatigue cracking, were also revealed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001012
EISBN: 978-1-62708-234-1
...Abstract Abstract An interstage radiator gas coil began leaking after only 45 days of service. The original brass coil with several aluminum fins was replaced three times but each replacement lasted less than a day. After removing the fins, leaks were found at circumferential cracks. A section...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001676
EISBN: 978-1-62708-229-7
.... This could occur either because of solid-solution or precipitation hardening, or both, because of increased nitrogen dissolution, oxygen dissolution, or even carbide precipitation. There will be a contribution to the embrittlement from radiation damage. It has also been claimed that oxygen segregation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001695
EISBN: 978-1-62708-229-7
...) improved mechanical properties, (3) dilution of enriched uranium, (4) improved resistance to radiation damage, and others. One of the common type of research reactor fuel elements is known as the MTR element which consists of an aluminum clad with a dispersion-type alloy as the core. The fissile...
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 some damage to the underlying component surface. Laboratory personnel are required to wear radiation-monitoring devices when working with radioactive nuclear components. The success of the author's decontamination procedures is borne out by the levels of radiation received by personnel as measured...
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
... objects, thickness Hazardous radiation operation; not sensitive to discontinuities less than 1–2% thickness of total metal; complex shapes are difficult to analyze Permits visual analysis of buried discontinuities or components in assembly. Also possible to measure near-surface strain Metals, foods...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001675
EISBN: 978-1-62708-220-4
...Abstract Abstract The failure of a reformer tube furnace manifold has been examined using metallography. It has been shown that the cause of failure was thermal fatigue; the damage was characterized by the presence of voids produced by creep mechanisms operating during the high temperature...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
... polymeric materials during SEM examination. A less obvious example is that examination of a sample by SEM can result in a thin film of hydrocarbon contamination ( Fig. 9 ), as well as a shallow layer of radiation damage that will break chemical bonds in the material struck by the electron beam...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003520
EISBN: 978-1-62708-180-1
... the matrix and precipitate phases can also be determined. Precipitation reactions can be studied, and the extent of recovery, recrystallization, or grain growth can be evaluated. In fact, the study of such features as dislocation density or radiation damage requires the electron microscope. Microfractography...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001665
EISBN: 978-1-62708-231-0
... Shepherdsville, Kentucky, causing substantial damage to a printing works adjacent to the tracks. In the ensuing litigation, the Louisville and Nashville Railroad Company was forced to pay compensation for the damage caused by the derailment. The railroad carried out an investigation of the mishap and found...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001746
EISBN: 978-1-62708-217-4
...Abstract Abstract Brittle intergranular fracture, typical of a hydrogen-induced delayed failure, caused the failure of an AISI 4340 Cr-Mo-Ni landing gear beam. Corrosion resulting from protective coating damage released nascent hydrogen, which diffused into the steel under the influence...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0045903
EISBN: 978-1-62708-223-5
...Abstract Abstract A 230 mm (9 in.) thick casing, fabricated from ASTM 235-55 low-carbon steel, of a 450 Mg (500 ton) extrusion press failed after 27 years of service. Initial visual examination revealed an area that exhibited multiple origins and classic beach marks radiating out approximately...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001714
EISBN: 978-1-62708-232-7
... by means of a carburising processes. Metal dusting attacks the inner surface of HyL III radiation heat exchanger pipes in generating crater-like pits. Thickness of the pipes is generally reduced very much, very quickly. X-ray radiography can be used to identify the pits by showing black spots in the film...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001130
EISBN: 978-1-62708-214-3
... concentration factor that aggravated the brittleness of the steel. Recreational equipment 430 UNS S43000 Hydrogen damage and embrittlement Brittle fracture Heat treating-related failures Background The seat on one of the swings of a heavy-duty swing set installed at an elementary school...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001902
EISBN: 978-1-62708-217-4
... of the modified SAE 6150 spring steel, Canada's cold weather which may have had an embrittling effect on the steel, and cumulative fatigue damage from severe landing loads during service life. Replacement with heavier-duty spring legs will probably not eliminate this type of failure, but their use has reduced...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001420
EISBN: 978-1-62708-220-4
... corrosion. What caused the basket to fail was the presence of corrosion-fatigue cracks or fissures radiating from the holes. A secondary cause was that the scantlings of the basket were too light. Extractors Fe-2.05Ni-0.91Cr-0.22Mo Corrosion fatigue Galvanic corrosion The hydro-extractor...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001338
EISBN: 978-1-62708-215-0
... showed marked pitting attack over the entire interior surface of the leaking tube. Shallow pits appeared as indentations filled with corrosion deposits, probably essentially cuprous oxide, with progressively greater damage with the deeper pits. Examples are shown in Fig. 3 , 4 , 5 , taken from...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001173
EISBN: 978-1-62708-218-1
... EN 353 Hydrogen damage and embrittlement Mixed-mode fracture For many years ball joints used in heavy vehicle steering joints had given satisfactory service. Suddenly, some failed a few hours after being fitted but before the vehicle had gone into service. Failure occurred in the necked part...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006756
EISBN: 978-1-62708-295-2
... on categorizing damage mechanisms in terms of environment. Six environments identified as contributors to damage mechanisms are: Stress Temperature Corrosion Wear Radiation Electrical To understand individual damage mechanisms, it is also important to recognize that many unique...