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neutron irradiation

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Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001036
EISBN: 978-1-62708-161-0
... Abstract Damage to steels from neutron irradiation affects the properties of steels and is an important factor in the design of safe and economical components for fission and fusion reactors. This article discusses the effects of high-energy neutrons on steels. The effects of damage caused...
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Published: 01 January 1987
Fig. 823 Effect of neutron irradiation on fracture mode and fracture toughness of the iron-nickel-base superalloy A-286 (UNS S66286). The plot of fracture toughness versus neutron exposure charts the degradation of K Ic with increased irradiation. Note the fracture-mode transition from More
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Published: 01 January 1986
Fig. 1 γ-ray spectrum of a neutron-irradiated ore sample from the Jemez mountains, New Mexico, recorded using a Ge(Li) detector five days after irradiation. The lower figure is an expanded view of Detail A in the upper figure. The necessity of high resolution is evident from the proximity More
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Published: 01 January 1986
Fig. 2 γ-ray spectra of a neutron-irradiated NBS fly ash sample showing the change that occurs as a function of time. The upper spectrum was recorded in the time interval 18 to 27 min after irradiation; the lower spectrum is a 2-h count recorded after 20 days of decay. None of the peaks More
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Published: 01 January 1986
Fig. 3 γ-ray spectrum of a neutron-irradiated high-purity nickel sample. The spectrum, recorded in the time interval 3 to 8 min after a 20-s irradiation, shows the presence of titanium, manganese, and vanadium in the sample. More
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Published: 01 January 1986
Fig. 5 Comparison of γ-ray spectrums. Upper spectrum shows a neutron-irradiated rock sample that contains 3 ppb iridium (26 days decay). Lower spectrum shows the chemically isolated iridium fraction (pure 74.2-d 192 Ir). More
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Published: 15 December 2019
Fig. 1 Gamma-ray spectrum of a neutron-irradiated ore sample from the Jemez Mountains, New Mexico, recorded using a high-resolution detector five days after irradiation. The lower figure is an expanded view of detail A in the upper figure. The necessity of high resolution is evident from More
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Published: 15 December 2019
Fig. 2 Gamma-ray spectra of a neutron-irradiated National Institute of Standards and Technology standard reference material 1633a fly ash sample showing the change that occurs as a function of time. The upper spectrum was recorded in the time interval 18 to 27 min after irradiation; the lower More
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Published: 15 December 2019
Fig. 3 Gamma-ray spectrum of a neutron-irradiated high-purity nickel sample. The spectrum, recorded in the time interval 3 to 8 min after a 20 s irradiation, shows the presence of titanium, manganese, and vanadium in the sample. More
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Published: 15 December 2019
Fig. 5 Comparison of γ-ray spectra. Upper spectrum shows a neutron-irradiated rock sample that contains 3 ng · g −1 iridium (26 d decay). Lower spectrum shows the chemically isolated iridium fraction ( 192 Ir, t 1/2 = 74.2 d) More
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Published: 01 December 2004
Fig. 33 Atom map of the solute distribution in a neutron-irradiated pressure vessel steel in which each sphere represents the position of an individual atom. The iron atoms are omitted for clarity. Three nanometer-sized copper-enriched precipitates are visible on either side of a lath boundary More
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Published: 01 January 2006
Fig. 3 Dependence of cracking in neutron-irradiated high-purity type 304 stainless steel (SS) on accumulated high-energy neutron fluence. IGSCC, intergranular stress-corrosion cracking More
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Published: 01 January 2006
Fig. 1 Neutron fluence effects on irradiation-assisted stress-corrosion cracking susceptibility of type 304 stainless steel in boiling water reactor (BWR) environments. PWR, pressurized water reactor; IASCC, irradiation-assisted stress-corrosion cracking; dpa, displacements per atom. Source More
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000615
EISBN: 978-1-62708-181-8
... Abstract This article is an atlas of fractographs that helps in understanding the causes and mechanisms of fracture of iron-base superalloys and in identifying and interpreting the morphology of fracture surfaces. The fractographs illustrate the neutron irradiation effect, fracture mode...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001039
EISBN: 978-1-62708-161-0
... embrittlement, strain-age and aluminum nitride embrittlement, thermal embrittlement, quench cracking, 475 deg C and sigma phase embrittlement (in FeCr alloys), temper embrittlement, and embrittlement caused by neutron irradiation. In addition, the article covers stress-corrosion cracking along with properties...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002404
EISBN: 978-1-62708-193-1
... orientation, strain rate, thermal aging, and neutron irradiation on base metal and weld toughness. It discusses the effect of cold-work-induced strengthening on fracture toughness. The article examines the fracture toughness behavior of aged base metal and welding-induced heat-affected zones. It concludes...
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Published: 01 January 1997
for the indicated conductivities. The numbered data points were obtained at the Harwell variable-energy cyclotron. The circled numbers were with the proton irradiation turned on, and the uncircled numbers were with the irradiation off. Similarly the data point [1] was obtained under fast neutron irradiation More
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Published: 01 January 2006
Fig. 14 Summary of irradiation-assisted stress-corrosion cracking (IASCC) in light water reactors and associated metallurgical changes in austenitic stainless steels as a function of neutron irradiation in n/cm 2 ( E ≥1 MeV) or displacements per atom (dpa). EFPY, effective full power year More
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006642
EISBN: 978-1-62708-213-6
... the interiors of samples weighing several grams. The NAA method most commonly used involves irradiation of a sample using low-energy neutrons in a nuclear reactor, to produce radioactive isotopes via the capture of neutrons by stable isotopes of the sample elements. Neutron irradiation is followed...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001748
EISBN: 978-1-62708-178-8
... the radioactivity induced in the major elements of the sample (see the section “Nondestructive TNAA” in this article). In destructive (radiochemical) NAA, the detection limits for some elements are below 1 ppt The NAA method most commonly used involves irradiation of the sample using slow neutrons...