Swelling resistance of a high nickel alloy

Appleby, W.K.; Sandusky, D.W.; Wolff, U.

doi:10.1016/0022-3115(72)90052-9

Cited by 16 publications

(6 citation statements)

References 3 publications

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“…Effect of a precipitation on a void formation can be considered in many processes. Closely spaced second-phase particles, such coherent gamma-prime (Ni 3 (Al, Ti)) precipitates in nickel alloys and Ti 5 (Si, P) 3 precipitates in vanadium alloys, lower the overall point defect concentration by providing sites for a mutual annihilation of vacancies and interstitials such that large excess vacancy concentrations do not occur, and a nucleation as well as a growth of voids is inhibited [11][12]. In the case of Fe-Cr and Fe-Cr-Si alloys, small precipitates will act as void nucleation sites due to the interaction process between point defects and a particle-matrix interface [13].…”

Section: Introductionmentioning

confidence: 99%

M2N nitride phases of 9% chromium steels for nuclear applications

Shen

Kim

Cho

et al. 2008

Journal of Nuclear Materials

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Section: Introductionmentioning

confidence: 99%

M2N nitride phases of 9% chromium steels for nuclear applications

Shen

Kim

Cho

et al. 2008

Journal of Nuclear Materials

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“…These materials produced <0.6%, 0.6 to 2.1% and 0.5 to 5% swelling respectively after exposure in EBR-II to 500x10 20 n/cm 2 at 873 to 923 K [16]. The variation in the swelling behavior was attributed to the precipitate microstructure.…”

Section: Radiation-induced Swellingmentioning

confidence: 89%

Assessing the Effects of Radiation Damage on Ni-base Alloys for the Prometheus Space Reactor System

Angeliu¹,

Ward²,

Witter³

2006

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Abstract. Ni-base alloys were considered for the Prometheus space reactor pressure vessel with operational parameters of ~900 K for 15 years and fluences up to 160x10 20 n/cm 2 (E>0.1 MeV). This paper reviews the effects of irradiation on the behavior of Ni-base alloys and shows that radiation-induced swelling and creep are minor considerations compared to significant embrittlement with neutron exposure. While the mechanism responsible for radiation-induced embrittlement is not fully understood, it is likely a combination of helium embrittlement and solute segregation that can be highly dependent on the alloy composition and exposure conditions. Transmutation calculations show that detrimental helium levels would be expected at the end of life for the inner safety rod vessel (thimble) and possibly the outer pressure vessel, primarily from high energy (E>1 MeV) n,α reactions with 58 Ni.Helium from 10 B is significant only for the outer vessel due to the proximity of the outer vessel to the BeO control elements. Recommendations for further assessments of the material behavior and methods to minimize the effects of radiation damage through alloy design are provided. 2PACS Code: 61.82.-d

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“…Lower swelling was also reported for PE16 containin 25 ppm B rather than 50 ppm B after irradiation in the Dounreay Fast Reactor up to 900x10 Swelling studies on solid solution strengthened Ni-base alloys have focused on Alloy 625, Hastelloy X and Alloy 800. These materials produced <0.6%, 0.6 to 2.1% and 0.5 to 5% swelling, respectively after exposure in EBR-II to 500x10~~ nlcm2 at 873 to 923 K [17]. The variation in the swelling behavior was attributed to the precipitate microstructure.…”

Section: Radiation-induced Swellingmentioning

confidence: 90%

Assessing the Effects of Radiation Damage on Ni-base Alloys for the Prometheus Space Reactor System

Angeliu¹

2006

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Dear Sir:This letter provides, for information, a review of the effects of radiation damage on nickel-base alloys to support pre-conceptual Prometheus-1 design efforts. SummaryNi-base alloys were considered for the Prometheus space reactor pressure vessel with operational parameters of -900 K for 15 years and fluences up to 1 6 0 x 1 0~~ n/cm2 (E>0.1 MeV). This paper reviews the effects of irradiation on the behavior of Ni-base alloys and shows that radiation-induced swelling and creep are minor considerations compared to significant embrittlement with neutron ,exposure. While the mechanism responsible for radiation-induced embrittlement is not fully understood, it is likely a combination of helium ernbrittlement and solute segregation that can be highly dependent on the alloy composition and exposure conditions. Transmutation calculations show that detrimental helium levels would be expected at the end of life for the inner safety rod vessel (thimble) and possibly the outer pressure vessel, primarily from high energy (E>1 MeV) n,a reactions with "~i . Helium from 'OB is significant only for the outer vessel due to the proximity of the outer vessel to the Be0 control elements. Recommendations for further assessments of the material behavior and methods to minimize the effects of radiation damage through alloy design are provided.

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Swelling resistance of a high nickel alloy

Cited by 16 publications

References 3 publications

M2N nitride phases of 9% chromium steels for nuclear applications

M2N nitride phases of 9% chromium steels for nuclear applications

Assessing the Effects of Radiation Damage on Ni-base Alloys for the Prometheus Space Reactor System

Assessing the Effects of Radiation Damage on Ni-base Alloys for the Prometheus Space Reactor System

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