Yuanfei Li
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View article: A study on initial formation stage of proton irradiation defects in reactor pressure vessel steel
A study on initial formation stage of proton irradiation defects in reactor pressure vessel steel Open
The irradiation effect of a reactor pressure vessel (RPV) steel subjected to the proton irradiation with a dose of approximately 1 dpa and an energy of 240 keV at room temperature is investigated using the internal friction (IF) method. An…
View article: Effect of Constant Cyclic Stress Coupling on the Fatigue Behavior of 304LN Stainless Steel
Effect of Constant Cyclic Stress Coupling on the Fatigue Behavior of 304LN Stainless Steel Open
The stress state of the primary circuit main pipeline is very complex mixed constant stress and periodic cyclic stress during the operation of nuclear power plants, which often affects the failure behavior of the stainless steel (SS) pipe.…
View article: Magnetic Indicator for Evaluating Cu Clustering and Hardening Effect in RPV Model Alloy
Magnetic Indicator for Evaluating Cu Clustering and Hardening Effect in RPV Model Alloy Open
The reactor pressure vessel (RPV) is a critical barrier in nuclear power plants, but its embrittlement during service poses a significant safety challenge. This study investigated the effects of Cu-enriched clusters on the mechanical and m…
View article: Effect of proton irradiation dose rate and implanted hydrogen ions on spinodal decomposition in thermally aged EQ308L stainless steel weld metal
Effect of proton irradiation dose rate and implanted hydrogen ions on spinodal decomposition in thermally aged EQ308L stainless steel weld metal Open
Stainless steel welds with a ferritic phase are extensively utilized in nuclear power plants. Spinodal decomposition stands as the primary factor contributing to the degradation of their service performance. Ion irradiation has been widely…
View article: Study on Corrosion Fatigue Behavior of 304L Austenite Stainless Steel in 325 °C High-Temperature Water Environment
Study on Corrosion Fatigue Behavior of 304L Austenite Stainless Steel in 325 °C High-Temperature Water Environment Open
The fatigue crack growth behavior of 304L austenitic stainless steel (SS) in a 325 °C high-temperature and high-pressure water environment were investigated by a corrosion fatigue test system, by electron back scatter diffraction (EBSD), a…
View article: Atomistic Simulation of the Interaction between the Σ9[110](221) Shear-Coupled Grain Boundary Motion and the Cu-rich Precipitates in α-Iron
Atomistic Simulation of the Interaction between the Σ9[110](221) Shear-Coupled Grain Boundary Motion and the Cu-rich Precipitates in α-Iron Open
Shear-coupled grain boundary motion (SCGBM) is an important and efficacious plasticity mechanism in the deformation of metals. In this work, a molecular dynamic (MD) simulation of the interaction between the SCGBM of Σ9[110](221) GB and Cu…
View article: Microstructure and Mechanical Behavior of Quaternary Eutectic α+θ+Q+Si Clusters in As-Cast Al-Mg-Si-Cu Alloys
Microstructure and Mechanical Behavior of Quaternary Eutectic α+θ+Q+Si Clusters in As-Cast Al-Mg-Si-Cu Alloys Open
Cu additions notably strengthen Al-Mg-Si and Al-Si-Mg alloys due to the dense precipitation of quaternary nano precipitates during ageing. However, the chemical evolution and mechanical behaviors of the quaternary micro-scale Q constituent…
View article: The development of prediction model on irradiation embitterment for low Cu RPV steels
The development of prediction model on irradiation embitterment for low Cu RPV steels Open
View article: Unveiling the Effect of Xe Irradiating on the Stress Corrosion Cracking of 308 Stainless Steel Under High Temperature Water Environment
Unveiling the Effect of Xe Irradiating on the Stress Corrosion Cracking of 308 Stainless Steel Under High Temperature Water Environment Open
View article: User-side integrated energy system efficiency assessment system and application
User-side integrated energy system efficiency assessment system and application Open
In view of the lack of systematic investigation on the evaluation indexes of user-side integrated energy systems, a scientific and systematic evaluation index system is proposed from four aspects: energy efficiency, cost-effectiveness, ene…
View article: Characterization of Dispersoids in Fe-13cr-3.5al-2.0mo-0.5wt.% Zrc Alloy
Characterization of Dispersoids in Fe-13cr-3.5al-2.0mo-0.5wt.% Zrc Alloy Open
View article: Effects of Fe-Ions Irradiation on the Microstructure and Mechanical Properties of FeCrAl-1.5wt.% ZrC Alloys
Effects of Fe-Ions Irradiation on the Microstructure and Mechanical Properties of FeCrAl-1.5wt.% ZrC Alloys Open
Fe-13Cr-3.5Al-2.0Mo-1.5wt.% ZrC alloy was irradiated by 400 keV Fe+ at 400 °C at different doses ranging from 6.35 × 1014 to 1.27 × 1016 ions/cm2 with a corresponding damage of 1.0–20.0 dpa, respectively, to investigate the effects of diff…
View article: Physical Testing and Surface Morphology Studies of Stainless Steel Irradiated with Xe Ions
Physical Testing and Surface Morphology Studies of Stainless Steel Irradiated with Xe Ions Open
6 MeV Xe ions were used to irradiate austenitic stainless steel at room temperature. Three displacement damage levels of 2,7 and 15 dpa were selected. Microstructure and surface morphology were characterized by transmission electron micros…
View article: A study on mechanical properties of ferritic alloy by physical testing for nuclear power fusion reactors
A study on mechanical properties of ferritic alloy by physical testing for nuclear power fusion reactors Open
The ferrite plays an important role in key component materials for nuclear power plant. The study was performed on ferritic alloys with various Cr content ranging from 10 to 38wt%. The Vickers-hardness and mechanical test results indicate …
View article: A study of predicting irradiation-induced transition temperature shift for RPV steels with XGBoost modeling
A study of predicting irradiation-induced transition temperature shift for RPV steels with XGBoost modeling Open
The prediction of irradiation-induced transition temperature shift for RPV steels is an important method for long term operation of nuclear power plant. Based on the irradiation embrittlement data, an irradiation-induced transition tempera…
View article: Ⅲ型热弹性方程的空间二择性及稳定性
Ⅲ型热弹性方程的空间二择性及稳定性 Open
The spatial alternative of type Ⅲ thermoelastic equations in a semi-infinite region was considered. The equations were assumed to satisfy certain initial and boundary conditions, and the solution was proved to grow exponentially or alterna…
View article: The Phragmén-Lindelöf Type Alternative Results for Binary Heat Conduction Equations
The Phragmén-Lindelöf Type Alternative Results for Binary Heat Conduction Equations Open
The asymptotic behavior of the solution to the binary heat conduction equation in the semi-infinite domain was considered, in which the local non-homogeneous Neumann condition was applied to the side of the cylinder. This condition simulat…
View article: Cu precipitation behaviour in long-term thermally aged, high-copper model reactor pressure vessel steels
Cu precipitation behaviour in long-term thermally aged, high-copper model reactor pressure vessel steels Open
Nanoscale Cu-rich precipitates that were formed in Cu-containing reactor pressure vessel (RPV) steels during service have a deleterious effect on mechanical properties, which can result in RPV embrittlement and limit reactor operation life…
View article: Effect of Irradiation on Austenite Phase in Thermally Aged 308 Stainless Steel Weld Metal
Effect of Irradiation on Austenite Phase in Thermally Aged 308 Stainless Steel Weld Metal Open
In this study, 308 stainless steel weld metals aged at 400°C for 7000h were irradiated at 400°C to different fluences with 240keV proton to study the effects of radiation on austenite phase. The microstructural change was examined by trans…
View article: Bargaining‐based cooperative game among multi‐aggregators with overlapping consumers in incentive‐based demand response
Bargaining‐based cooperative game among multi‐aggregators with overlapping consumers in incentive‐based demand response Open
To solve irreconcilable pricing strategies of multi‐aggregators when overlapping consumers join in the incentive‐based demand response programs, this study proposes a bargaining‐based cooperative game among multi‐aggregators with overlappi…
View article: Irradiation-induced BCC-phase formation and magnetism in a 316 austenitic stainless steel
Irradiation-induced BCC-phase formation and magnetism in a 316 austenitic stainless steel Open