Synergistic Effect of Triple Ion Beams on Radiation Damage in CLAM Steel

Yuan, Daqing; Zheng, Y.; Zuo, Yi; Fan, Ping; Zhou, Dongmei; Zhang, Qiao‐Li; Ma, Xiaoqiang; Cui, Baoqun; Chen, Lihua; Jiang, Wusheng; Wu, Yican; Huang, Qunying; Peng, Lei; Cao, Xingzhong; Wang, Boyu; Wei, Long; Zhu, Shengyun

doi:10.1088/0256-307x/31/4/046101

Cited by 10 publications

(7 citation statements)

References 15 publications

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“…Details regarding the triple ion beam irradiation facility at China Institute of Atomic Energy can be found in Refs. [5,13]. The size of the specimens used in the experiment was Φ15 mm× 0.5 mm.…”

Section: Methodsmentioning

confidence: 99%

“…In the advanced nuclear systems, such as ADS and FUSION reactors, the structure materials not only suffer from high dose neutron bombardment, but also the transmutation products such as helium and hydrogen can couple with radiation damages and lead to the further degradation of material properties, the so called synergistic effect [1,2,3,4,5]. Investigation of the synergistic effect is a currently interesting topic with great importance along with the development of advanced nuclear systems.…”

Section: Introductionmentioning

confidence: 99%

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Synergistic Effect on Formation of Radiation Damage in CLAM Steel Studied by Triple Beam Irradiation

Yuan

Liang

Fan

et al. 2017

DDF

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The synergistic effect associated with displacement damage, hydrogen and heliumin the China Low Activation Martensitic (CLAM) steel has been investigated using the triple ion beamirradiation. Triple ion beams, an iron beam of 109 MeV degraded by a tantalum foil of 7.45 μm thick, the100 keV hydrogen and 200 keV helium, were injected into the CLAM steel samples simultaneously or sequentially.The radiation damage examinations were carried out by the slow positron Doppler broadening technique. Themeasured S parameters indicate that the radiation damage is different for different irradiationprocedures with same dpa and concentrations of H and He. The sample suffers most severe damage in the simultaneoustriple beam irradiation. The present experimental results support the molecular dynamics simulation result that the H facilitates the He-bubble nucleation and growth.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synergistic Effect on Formation of Radiation Damage in CLAM Steel Studied by Triple Beam Irradiation

Yuan

Liang

Fan

et al. 2017

DDF

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“…The investigations on the metals and alloys have attracted extensive attention in the past years because of their good performance. [32][33][34][35][36][37][38][39] For the purpose of optimizing the microstructure and mechanical properties of the metals and alloys and extending their practical applications, it is of particular importance to analyze their plastic deformation behavior or stress-strain curves. One of the earliest attempts is the empirical mathematical equation proposed by Hollomon (termed as the Hollomon equation).…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Strain rate and cold rolling dependence of tensile strength and ductility in high nitrogen nickel-free austenitic stainless steel

et al. 2017

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The tensile strength and ductility of a high nitrogen nickel-free austenitic stainless steel with solution and cold rolling treatment were investigated by performing tensile tests at different strain rates and at room temperature. The tensile tests demonstrated that this steel exhibits a significant strain rate and cold rolling dependence of the tensile strength and ductility. With the increase of the strain rate from 10 −4 s −1 to 1 s −1 , the yield strength and ultimate tensile strength increase and the uniform elongation and total elongation decrease. The analysis of the double logarithmic stress-strain curves showed that this steel exhibits a two-stage strain hardening behavior, which can be well examined and analyzed by using the Ludwigson equation. The strain hardening exponents at low and high strain regions (n 2 and n 1 ) and the transition strain (ε L ) decrease with increasing strain rate and the increase of cold rolling RA. Based on the analysis results of the stress-strain curves, the transmission electron microscopy characterization of the microstructure and the scanning electron microscopy observation of the deformation surfaces, the significant strain rate and cold rolling dependence of the strength and ductility of this steel were discussed and connected with the variation in the work hardening and dislocation activity with strain rate and cold rolling.

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“…In particular, PAS has been widely applied to study ion beam induced vacancy-type (point or clustered) defects in metals and semiconductors, [64][65][66][67][68][69]. Positrons implanted into a sample can get trapped in and localize at neutral and negative vacancies due to the missing positive ion core.…”

Section: Positron Annihilation Spectroscopymentioning

confidence: 99%

Advanced techniques for characterization of ion beam modified materials

Zhang

Debelle

Boulle

et al. 2015

Current Opinion in Solid State and Materials Science

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Keywords:Rutherford backscattering spectrometry Raman spectroscopy X-ray diffraction Small-angle X-ray scattering Positron annihilation spectroscopy Ion beam modification a b s t r a c t Understanding the mechanisms of damage formation in materials irradiated with energetic ions is essential for the field of ion-beam materials modification and engineering. Utilizing incident ions, electrons, photons, and positrons, various analysis techniques, including Rutherford backscattering spectrometry (RBS), electron RBS, Raman spectroscopy, high-resolution X-ray diffraction, small-angle X-ray scattering, and positron annihilation spectroscopy, are routinely used or gaining increasing attention in characterizing ion beam modified materials. The distinctive information, recent developments, and some perspectives in these techniques are reviewed. Applications of these techniques are discussed to demonstrate their unique ability for studying ion-solid interactions and the corresponding radiation effects in modified depths ranging from a few nm to a few tens of lm, and to provide information on electronic and atomic structure of the materials, defect configuration and concentration, as well as phase stability, amorphization and recrystallization processes. Such knowledge contributes to our fundamental understanding over a wide range of extreme conditions essential for enhancing material performance and also for design and synthesis of new materials to address a broad variety of future energy applications.

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Synergistic Effect of Triple Ion Beams on Radiation Damage in CLAM Steel

Cited by 10 publications

References 15 publications

Synergistic Effect on Formation of Radiation Damage in CLAM Steel Studied by Triple Beam Irradiation

Synergistic Effect on Formation of Radiation Damage in CLAM Steel Studied by Triple Beam Irradiation

Strain rate and cold rolling dependence of tensile strength and ductility in high nitrogen nickel-free austenitic stainless steel

Advanced techniques for characterization of ion beam modified materials

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