The consequences of helium production on microstructural development and deformation response in isotopically tailored ferritic alloys

Gelles, D.S.; Hankin, G.L.; Hamilton, M.L.

doi:10.1016/s0022-3115(97)00222-5

Cited by 21 publications

(6 citation statements)

References 10 publications

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“…While Gelles et al could observe nickel addition promoted precipitation in the Fe-12%Cr-1.5%Ni, 15) we could not confirm such precipitations but formation of finer dislocation loops and black dots as shown in Fig. 4.…”

Section: Relation Between Microstructural Evolution Andcontrasting

confidence: 82%

Effects of Nickel Addition on Microstructural Evolution and Mechanical Properties of Reduced Activation Martensitic Steels Irradiated in the ATR-A1

Kasada

Kimura

2005

Mater. Trans.

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Validity of nickel isotope tailoring (NIT) method to be able to generate a large amount of transmutation helium in 9%Cr-2%W reduced activation ferritic (RAF) steel for fusion reactor structural material was investigated and discussed through mechanical properties and microstructural evolution after fission neutron irradiation. Miniature tensile and Charpy impact specimens of RAF steels and 1% nickel added RAF steel were irradiated in the ATR-A1 to evaluate irradiation hardening and shift in ductile-brittle transition temperature (ÁDBTT). The amount of transmutation helium in all the RAF steels with and without nickel addition was calculated as only about 0.6 appm. After irradiation at 621 K, the ÁDBTT for the 1% nickel added steel was similar for the JLF-1. After irradiation at 543 K, however, the ÁDBTT for the 1% nickel added steel was significantly larger than that for the JLF-1. Microstructure observations revealed that irradiation-induced dislocation loops in the 1% nickel added steel were finer and denser than in the RAF steel without nickel addition, suggesting that the nickel addition to the RAF steels directly affected nucleation and growth processes of dislocation loops and enhanced irradiation hardening and embrittlement. Therefore, there is a limit in the NIT method as a simulation method for understanding effects of helium on irradiation embrittlement of RAF steels.

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Section: Relation Between Microstructural Evolution Andcontrasting

confidence: 82%

Effects of Nickel Addition on Microstructural Evolution and Mechanical Properties of Reduced Activation Martensitic Steels Irradiated in the ATR-A1

Kasada

Kimura

2005

Mater. Trans.

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“…It is well established that nickel additions result in additional hardening at lower irradiation temperatures [33,[77][78][79]. This may be due to enhancement of hardening from defect clusters as well as fine scale nickel enriched precipitates [80,81]. More generally, nickel additions change the transformation temperatures and kinetics in quenched and tempered steels, hence, modifying the overall microstructure.…”

Section: The Accumulation Of Helium and Hydrogen Onmentioning

confidence: 99%

On the effects of irradiation and helium on the yield stress changes and hardening and non-hardening embrittlement of ∼8Cr tempered martensitic steels: Compilation and analysis of existing data

Yamamoto

Odette

Kishimoto

et al. 2006

Journal of Nuclear Materials

141

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“…He migration to grain boundaries can lead to embrittlement. Literature has shown that material failure in Hastelloy N may be a risk at 20 dpa due to He embrittlement [7]. It should be noted that other studies have drawn different conclusions based on precipitation, hydrogen generation, and charged-particle irradiations [8].…”

Section: Neutron Damage Limitsmentioning

confidence: 98%

The role of Z-pinch fusion transmutation of waste in the nuclear fuel cycle.

Smith¹,

Drennen

Rochau³

et al. 2007

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The resurgence of interest in reprocessing in the United States with the Global Nuclear Energy Partnership has led to a renewed look at technologies for transmuting nuclear waste. Sandia National Laboratories has been investigating the use of a Z-Pinch fusion driver to burn actinide waste in a sub-critical reactor. The baseline design has been modified to solve some of the engineering issues that were identified in the first year of work, including neutron damage and fuel heating. An on-line control feature was added to the reactor to maintain a constant neutron multiplication with time. The transmutation modeling effort has been optimized to produce more accurate results. In addition, more attention was focused on the integration of this burner option within the fuel cycle including an investigation of overall costs. This report presents the updated reactor design, which is able to burn 1320 kg of actinides per year while producing 3,000 MWth.4

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The consequences of helium production on microstructural development and deformation response in isotopically tailored ferritic alloys

Cited by 21 publications

References 10 publications

Effects of Nickel Addition on Microstructural Evolution and Mechanical Properties of Reduced Activation Martensitic Steels Irradiated in the ATR-A1

Effects of Nickel Addition on Microstructural Evolution and Mechanical Properties of Reduced Activation Martensitic Steels Irradiated in the ATR-A1

On the effects of irradiation and helium on the yield stress changes and hardening and non-hardening embrittlement of ∼8Cr tempered martensitic steels: Compilation and analysis of existing data

The role of Z-pinch fusion transmutation of waste in the nuclear fuel cycle.

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