Direct observation of radiation-induced coated cavities

Farrell, K.; Bentley, J.; Braski, D.N.

doi:10.1016/0036-9748(77)90062-x

Cited by 56 publications

(13 citation statements)

References 5 publications

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“…The voids lose their facetted shape and become rounded. 77 They are completely covered with a thin coating consisting of mostly Si with some Al. The coating is noncrystalline and flexible.…”

Section: Transmutation Productsmentioning

confidence: 99%

Performance of Aluminum in Research Reactors

Farrell

2012

Comprehensive Nuclear Materials

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Section: Transmutation Productsmentioning

confidence: 99%

Performance of Aluminum in Research Reactors

Farrell

2012

Comprehensive Nuclear Materials

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“…This re-ordering can take place at temperatures bclow those of bulk diffucion in the alloy. An amorphous silicon-rich phase has been previously recorded in 1100 aluminum [35]. This prior investigation reported c~y~alline silicon-rich precipitate particles in the matris of 1 I00 aluminum with the co-existence of anioiphous silicon-rich coatings wound radiation induced voids.…”

Section: Neutron-irradiated 6061 T-6 Aluminunimentioning

confidence: 98%

“…Some of the earlicst work on the e f k t of thermal neutrons on aluminum alloys was performed at ORNL [33,35,38,401. These studies detcrmined that silicon is produced in aluminum through the *' A1 (n,y ) "Al, 'SAl-'sSi+~ reactions mostly through the interaction w i t h thermal neutrons, and that fast neutron interactions caused the formation of dislocation loops and eventually, voids 132,431.…”

Section: Neutron-irradiated 6061 T-6 Aluminunimentioning

confidence: 99%

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Response of structural materials to radiation environments

Czajkowski¹

1997

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Q S T IAn evaluation of proton and neutron damage to aluminum, stainless stccl, nickel alloys, and various aluminum alloys has been pcrformed. The proton studies were conducted at energies of 200 MeV, 800 MeV, and 23.5 GeV. The proton studies Consisted of evaluation and characterization of protonirradiated windowdtarget materials fiom acceleraiors and comparison to nonirradiatcd archival materials. The materials evaluated for the proton irradiations included 99.9999 \VI% aluminurn, 1100 aluminum, SO52 aluminum, 304 stainless steel, and inconel 7 18. The neutron damage research centered on 6061 T-6 aluminum which was obtained fiom a control-rod follower fiom the Brookhaven National Laboratory's (BNL) High Flux Beam Reactor (HFBR). This material had received thermal neutron fluence up to -4 x 10" dcm'. The possible dfeds of lhermal-to-fast neutron flus ratios are discussed. The ina-eaw in tensile strength in the proton-irradiated matcrials is shown to be the result of atomic displacements. These displacements cause interstitials and vacancies which aggregate into defect clusters which result in radiation hardening of the mteaials. Production of gas (helium) in thc gain boundaries of proton irradiated 99.9999 wt% iluminum is also discussed. The major factor contributing to the mechanical-propeily changes in the neutron-irradiated 6061 T-6 aluminum is the production of transmutation products formed by interactions of the aluminum with thermal neutrons. The metallurgical and mechanicalproperty evaluations for the research consisted of electron microscopy @oh scanning and transmission), tensile testing, and microhardness testing.

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“…Farrell et al (41) have experimentally observed silicon-coated voids in neutron-irradiated aluminum. The system, exclusive of voids, may also exhibit a preference for a given defect.…”

Section: Growth Kineticsmentioning

confidence: 99%

Effects of minor alloying additions on the strength and swelling behavior of an austenitic stainless steel

Gessel

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Direct observation of radiation-induced coated cavities

Cited by 56 publications

References 5 publications

Performance of Aluminum in Research Reactors

Performance of Aluminum in Research Reactors

Response of structural materials to radiation environments

Effects of minor alloying additions on the strength and swelling behavior of an austenitic stainless steel

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