Saturation and exposure dependence of the yield stress of irradiated iron

McRickard, S. B.

doi:10.1080/14786436808227513

Cited by 16 publications

(2 citation statements)

References 7 publications

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“…Similar observations were reported for iron by Seidel (39), Diehl et al (40), McRickard (41), and Mogford and Hull (42).…”

Section: Experimental Observations Of Radiation Hardeningsupporting

confidence: 89%

Radiation damage in vanadium doped with oxygen

Bajaj

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19. Average diameter, 3" , of radiation-produced defect clusters vs annealing temperature 20. Density of defect clusters, n, vs annealing tempera ture for single crystal samples 86 21. Plot of interbarrier spacing, a, vs annealing tempera tures for single crystal samples containing three levels of oxygen 22: Transmission electron micrograph of V-300 single crystal in as-irradiated condition. Region A indicates a linear arrangement of defect clusters adjacent to a denuded region 9^ viii Page 23. Transmission electron micrograph of V-300 single crystal in as-irradiated condition, showing linear arrangements of defect clusters at A and C 24. Transmission electron micrograph of V-300 single crystal in as-irradiated condition. Letters A-E. indicate regions where defect clusters appear to be arranged in chain-like fashion along an arc 96 25. True stress vs true strain for unirradiated (above) and irradiated (below) specimens of vanadium-60 wt ppm oxygen isothermal3v annealed at 175°C. _ Irradiation dose, 1.2x10 n/cnr (E>1 MeV) at 105 C 98 26. True stress vs true strain for unirradiated (above) and irradiated (below) specimens of vanadium-200 wt ppm oxygen isothermally annealed at 175 C._ Irradiation dose, 1.2x10'^ n/cmr (E>1 MeV) at 105 C 99 27. True stress vs true strain for unirradiated (above) and irradiated (below) specimens of vanadium-640 wt ppm oxygen isothermally annealed at 175 C. Irradiation dose, 1.2x1019 n/cnr (E>1 MeV) at 105 C 101 28. True stress vs true strain for unirradiated (above) and irradiated (below) specimens of vanadium-60 ppm oxygen isochronally annealed for 1 hr. Irradia tion dose, 1.2x10'' n/cnr (E>1 MeV) at 105"C. Arrow points to an instant reloading 104 29. True stress vs true strain for unirradiated (above) and irradiated (below) specimens of vanadium-200 ppm oxygen isochronally annealed for 1 hr.. Irradiation dose, 1.2xl0'^n/cm' (E>1 MeV) at 105 C 106 30. True stress vs true strain for unirradiated (above) and irradiated (below) specimens of vanadium-640 ppm oxygen isochronally annealed for 1 hr.. Irradiation dose, 1.2xloT9 n/cnr (E>1 MeV) at 105 C 108 31. True stress vs true strain for irradiated vanadium strained ^ 3% prior to annealing at 175°C for specified times m 32. True stress vs true strain for Irradiated vanadium strained ~ 6% prior to annealing at 175°C for specified times 113 ix 33. True stress vs true strain for irradiated vanadium strained-v 8% prior to annealing at 175°C for specified times 34. ScaiWing electron micrographs of vanadium-95 wt ppm oxygen single crystals deformed 12% in compression at room temperature; (a).unirradiated specimen, (b) irradiated to 1.4x10"' n/cm^ (E>1 MeV) at 95°C prior to straining 35. High magnification scanning electron micrographs of slip lines in irradiated and deformed vanadium-500 ppm oxygen single crystal 36. Dislocation channels in vanadium-95 wt ppm oxygen single crystal, post-irradiation deformed 12% in compression at room temperature. Intersecting channels can be observed at A and B 37. Dislocation channels in vanadium-300 wt ppm oxy...

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“…Similar observations were reported for iron by Seidel (39), Diehl et al (40), McRickard (41), and Mogford and Hull (42).…”

Section: Experimental Observations Of Radiation Hardeningsupporting

confidence: 89%

Radiation damage in vanadium doped with oxygen

Bajaj

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“…In order to investigate the discrepancies in Refs. (3)(4)(5) with respect to our earlier results on single crystals('*a', it was felt necessary to measure the dose-curves of t Permanent address. polycrystalhe iron over a wide range of neutron doses, special emphasis being placed on the low dose range to about 3.1017 n/cm2.…”

Section: Introductionmentioning

confidence: 96%

Neutron radiation hardening of polycrystalline iron

Seidel

1969

Radiation Effects

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The dependence of the yield stress of vacuum-annealed and hydrogen-purified iron polycrystals on neutron dose and annealing temperature and the influence of these two parameters on the effect of static strain-ageing has been investigated. The radiation hardening was found to depend sensitively on the interstitial impurities N and C. This may be explained by both a nucleation of precipitation and a trapping of the impurities at radiation produced intrinsic defects. The radiation enhanced precipitation predominates in the relatively impure iron samples at low doses and may be eliminated by annealing at 190°C. The trapping becomes effective 'at higher doses or in higher purity iron. Below 400°C two recovery stages for the yield stress are observed, one between 200 and 260 "C and the other between 320 and 400 "C; these may be explained by the detrapping of N and C respectively. The static strain-ageing was found to be reduced by neutron irradiation. It reappears after annealing at temperatures at which the precipitates are thought to be redissolved and the C and N atoms to be detrapped.

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Fast-neutron irradiation effects on dislocation structures in iron strained at ambient temperature

Bryner

Chow

1970

Acta Metallurgica

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Saturation and exposure dependence of the yield stress of irradiated iron

Cited by 16 publications

References 7 publications

Radiation damage in vanadium doped with oxygen

Radiation damage in vanadium doped with oxygen

Neutron radiation hardening of polycrystalline iron

Fast-neutron irradiation effects on dislocation structures in iron strained at ambient temperature

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