Helium ion irradiation behavior of Ni-1wt.%SiCNP composite and the effect of ion flux

Zhou, Xingtai; Huang, Huijie; Xie, Ren; Thorogood, Gordon J.; Yang, Chen; Li, Z.J.; Xu, Hongjie

doi:10.1016/j.jnucmat.2015.11.004

Cited by 23 publications

(4 citation statements)

References 40 publications

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“…(2) Nanofine crystalline materials can be obtained or nano-precipitated particles can be introduced through thermal-mechanical processing and powder metallurgy, such as nano-layered metal composites [202,203] and oxide dispersion-strengthened (ODS) steel [204,205] nickel-based alloys [206][207][208][209].…”

Section: Optimizing the Corrosion-resistant Alloy So That It Resists ...mentioning

confidence: 99%

“…Carbide/oxide dispersion-strengthened (CDS/ODS) Nibased alloys by incorporating nanoparticles into the alloy using powder metallurgy technology have successfully been developed [206][207][208][209]. Compared to SiC nanoparticles, Y 2 O 3 nanoparticles exhibit smaller size, greater uniformity, and higher stability at high temperatures.…”

Section: Optimizing the Corrosion-resistant Alloy So That It Resists ...mentioning

confidence: 99%

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Review on synergistic damage effect of irradiation and corrosion on reactor structural alloys

Liu,

Lei,

Huang

2024

NUCL SCI TECH

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The synergistic damage effect of irradiation and corrosion of reactor structural materials has been a prominent research focus. This paper provides a comprehensive review of the synergistic effects on the third- and fourth-generation fission nuclear energy structural materials used in pressurized water reactors and molten salt reactors. The competitive mechanisms of multiple influencing factors, such as the irradiation dose, corrosion type, and environmental temperature, are summarized in this paper. Conceptual approaches are proposed to alleviate the synergistic damage caused by irradiation and corrosion, thereby promoting in-depth research in the future and solving this key challenge for the structural materials used in reactors.

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Section: Optimizing the Corrosion-resistant Alloy So That It Resists ...mentioning

confidence: 99%

Section: Optimizing the Corrosion-resistant Alloy So That It Resists ...mentioning

confidence: 99%

Review on synergistic damage effect of irradiation and corrosion on reactor structural alloys

Liu,

Lei,

Huang

2024

NUCL SCI TECH

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“…[15] Due to the different size of the helium atom defects group, the corresponding research methods are also different. [16] The helium defect diffuses to the surface in the form of interstitial atoms and releases on the surface. [17,18] Therefore, thermal desorption spectropy (TDS) can analyze helium bubbles with small size, and each characteristic peak may represent a different desorption process.…”

Section: Introductionmentioning

confidence: 99%

Thermal desorption characteristic of helium ion irradiated nickel-base alloy*

Zhu

Zhao

et al. 2020

Chinese Phys. B

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The nickel-base alloy is one of the leading candidate materials for generation IV nuclear reactor pressure vessel. To evaluate its stability of helium damage and retention, helium ions with different energy of 80 keV and 180 keV were introduced by ion implantation to a certain dose (peak displacement damage 1–10 dpa). Then thermal desorption spectroscopy (TDS) of helium atoms was performed to discuss the helium desorption characteristic and trapping sites. The desorption peaks shift to a lower temperature with increasing dpa for both 80 keV and 180 keV irradiation, reflecting the reduced diffusion activation energy and faster diffusion within the alloy. The main release peak temperature of 180 keV helium injection is relatively higher than that of 80 keV at the same influence, which is because the irradiation damage of 180 keV, helium formation and entrapment occur deeper. The broadening of the spectra corresponds to different helium trapping sites (He–vacancies, grain boundary) and desorption mechanisms (different He n V m size). The helium retention amount of 80 keV is lower than that of 180 keV, and a saturation limit associated with the irradiation of 80 keV has been reached. The relatively low helium retention proves the better resistance to helium bubbles formation and helium brittleness.

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“…Therefore, we have developed a bulk Ni-SiC NP composite manufactured via spark plasma sintering (SPS) for potential application in molten salt reactors (Yang, Huang, De Los Reyes et al, 2015). This material exhibits a much improved capability to absorb helium and hence mitigate helium embrittlement compared with pure ISSN 1600-5767 # 2016 International Union of Crystallography nickel (Huang et al, 2016;Zhou et al, 2015). In this study, we performed synchrotron small-angle (SAXS) and ultra-smallangle (USAXS) X-ray scattering experiments on Ni-SiC samples.…”

Section: Introductionmentioning

confidence: 99%

Dispersed SiC nanoparticles in Ni observed by ultra-small-angle X-ray scattering

et al. 2016

Self Cite

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A metal–ceramic composite, nickel reinforced with SiC nanoparticles, was synthesized and characterized for its potential application in next‐generation molten salt nuclear reactors. Synchrotron ultra‐small‐angle X‐ray scattering (USAXS) measurements were conducted on the composite. The size distribution and number density of the SiC nanoparticles in the material were obtained through data modelling. Scanning and transmission electron microscopy characterization were performed to substantiate the results of the USAXS measurements. Tensile tests were performed on the samples to measure the change in their yield strength after doping with the nanoparticles. The average interparticle distance was calculated from the USAXS results and is related to the increased yield strength of the composite.

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Helium ion irradiation behavior of Ni-1wt.%SiCNP composite and the effect of ion flux

Cited by 23 publications

References 40 publications

Review on synergistic damage effect of irradiation and corrosion on reactor structural alloys

Review on synergistic damage effect of irradiation and corrosion on reactor structural alloys

Thermal desorption characteristic of helium ion irradiated nickel-base alloy*

Dispersed SiC nanoparticles in Ni observed by ultra-small-angle X-ray scattering

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