Modelling irradiation-induced softening in BCC iron by crystal plasticity approach

Xiao, Xiazi; Terentyev, D.; Yu, Long; Song, Dingkun; Bakaev, A.; Duan, Huiling

doi:10.1016/j.jnucmat.2015.08.017

Cited by 21 publications

(7 citation statements)

References 26 publications

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“…Using the self-consistent model based on [66] enabled to model the response of a polycrystalline material. The model was then adopted to study the behaviour of BCC iron [67], BCC steel [68] and Fe-Cr alloys [22]. In the first model no conceptual changes were made apart from neglecting the annihilation probability term and accounting for the Hall-Petch hardening.…”

Section: Of 17mentioning

confidence: 99%

“…The third one additionaly accounted for the effects of SRCs, Cr solute and lattice resistance friction. In spite of modelling the BCC materials, in both [67] and [22] the standard crystal plasticity power law (Eq. 2) was used in contrast to Kocks-type thermal activation equation (Eq.…”

Section: Of 17mentioning

confidence: 99%

“…In the papers cited herein, the polycrystalline response was obtained either by using the self-consistent (SC) [22,41,42,65,67,68,71,73], the FEM [3,11,20,23,43,45,[57][58][59][60]62,63,69,70,75] or FFT based ([3,44,61,71]) homogenization techniques. In the self-consistent model, each grain is treated as an uniformly deforming ellipsoidal inclusion [49,76].…”

Section: Nanoindentationmentioning

confidence: 99%

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Modelling Irradiation Effects in Metallic Materials using the Crystal Plasticity Theory

Frydrych¹

2023

Preprint

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The review starts by highlighting the significance of nuclear power plants in contemporary world, especially its indispensable role in the global efforts to reduce CO2 emissions. Then, it describes the impact of irradiation on microstructure and mechanical properties of reactor structural materials. The main part provides the reader with a thorough overview of crystal plasticity models developed to address the irradiation effects so far. All three groups of most important materials are included. Namely, the Zr alloys used for fuel cladding, austenitic stainless steels used for reactor internals and ferritic steels used for reactor pressure vessel. Other materials, especially those considered for construction of future fission and fusion nuclear power plants, are also mentioned. The review pays also special attention to ion implantation and instrumented nanoindentation which are a common way to substitute costly and time-consuming neutron irradiation campaigns.

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Section: Of 17mentioning

confidence: 99%

Section: Of 17mentioning

confidence: 99%

Section: Nanoindentationmentioning

confidence: 99%

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Modelling Irradiation Effects in Metallic Materials using the Crystal Plasticity Theory

Frydrych¹

2023

Preprint

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“…The model [62,64] developed for FCC metals was adopted to study the behaviour of BCC iron [87], BCC steel [88], and Fe-Cr alloys [31]. In the first model no conceptual changes were made apart from neglecting the annihilation probability term and accounting for the Hall-Petch hardening.…”

Section: Materials For Reactor Pressure Vesselmentioning

confidence: 99%

Modelling Irradiation Effects in Metallic Materials Using the Crystal Plasticity Theory—A Review

Frydrych

2023

Crystals

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The review starts by highlighting the significance of nuclear power plants in the contemporary world, especially its indispensable role in the global efforts to reduce CO2 emissions. Then, it describes the impact of irradiation on the microstructure and mechanical properties of reactor structural materials. The main part provides the reader with a thorough overview of crystal plasticity models developed to address the irradiation effects so far. All three groups of the most important materials are included. Namely, the Zr alloys used for fuel cladding, austenitic stainless steels used for reactor internals, and ferritic steels used for reactor pressure vessels. Other materials, especially those considered for construction of future fission and fusion nuclear power plants, are also mentioned. The review also pays special attention to ion implantation and instrumented nanoindentation which are common ways to substitute costly and time-consuming neutron irradiation campaigns.

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“…Nie et al summarized the crystal plasticity finite-element method (CPFEM) for body-centered cubic (BCC) crystals and successfully simulated the nano-indentation hardness of Chinese A508-3 steels with ion irradiation (Nie et al, 2019). Xiao et al (2015) developed a theoretical model to determine the mechanical behavior of facecentered cubic (FCC) polycrystals with nanotwins from the perspective of crystal plasticity.…”

Section: Introductionmentioning

confidence: 99%

Irradiation Effect on F321 Austenitic Stainless-Steel: Nanoindentation and Modeling With the Crystal Plasticity Method

2022

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In this study, 3.5 MeV Fe-ion irradiation experiments were conducted on F321 austenitic stainless-steel at different temperatures and doses. The nanohardness of the unirradiated and irradiated samples was characterized by performing nanoindentation experiments. Irradiation softening and hardening were clearly observed at 20, 100, and 300°C. However, at 300°C, after irradiation softening, the nanohardness first increased and then decreased, as opposed to the nanohardness at 20 and 100°C, which increased as the dose increased. In addition, a crystal plasticity model for a face-centered cubic single-crystal while considering irradiation-induced hardening has been proposed and numerically implemented in the user-material subroutine UMAT of ABAQUS. This was done to simulate the load-depth data of the nanoindentation experiment. The simulated results of the non-irradiated and irradiated F321 austenitic stainless-steel were compared with the experimental data. A good agreement was observed, which demonstrates the effectiveness and accuracy of the model.

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Modelling irradiation-induced softening in BCC iron by crystal plasticity approach

Cited by 21 publications

References 26 publications

Modelling Irradiation Effects in Metallic Materials using the Crystal Plasticity Theory

Modelling Irradiation Effects in Metallic Materials using the Crystal Plasticity Theory

Modelling Irradiation Effects in Metallic Materials Using the Crystal Plasticity Theory—A Review

Irradiation Effect on F321 Austenitic Stainless-Steel: Nanoindentation and Modeling With the Crystal Plasticity Method

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