Unlock instant, AI-driven research and patent intelligence for your innovation.

Dynamic simulation method and model system of dislocation loop radius in zirconium-based alloys under irradiation

A kinetic model and zirconium-based alloy technology, applied in complex mathematical operations, CAD numerical modeling, instruments, etc., can solve problems such as inability to achieve accuracy, inability to fully cover reaction items, and non-universal programs, to achieve The effect of wide prediction range and guaranteed accuracy

Active Publication Date: 2022-04-15
NUCLEAR POWER INSTITUTE OF CHINA
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some countries have developed some programs by mature application of rate theory, but these programs are not universal
At the same time, the research groups in various countries have different understandings of the interaction between defects, so the only thing that programs learn from each other is the physical mechanism, and the response items between defects cannot be completely covered.
At present, there is no model that can accurately simulate the reaction process of defects in nuclear materials, and the related programs developed at home and abroad cannot achieve the ideal accuracy.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dynamic simulation method and model system of dislocation loop radius in zirconium-based alloys under irradiation
  • Dynamic simulation method and model system of dislocation loop radius in zirconium-based alloys under irradiation
  • Dynamic simulation method and model system of dislocation loop radius in zirconium-based alloys under irradiation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] The method for simulating the dynamics of the radius of a dislocation loop in a zirconium-based alloy under irradiation comprises the following steps:

[0085] S101: Based on the reaction rate theory method, establish a model for simulating the evolution of dislocation structure and radiation growth;

[0086] S102: Establish a dislocation loop radius dynamics model based on evolution and radiation growth models;

[0087] S103: Input the obtained material parameters as numerical simulation parameters into the dislocation loop radius dynamic model;

[0088] S104: The dynamic model of the dislocation ring radius simulates and calculates the dependence of the dislocation ring radius on the alloy element content, grain size, temperature, and dose rate according to the numerical simulation parameters.

[0089] (1) The evolution and irradiation growth model establishment is specifically as follows:

[0090] The concentrations of A and B atoms in the binary zirconium-based al...

Embodiment 2

[0169] Embodiment 2: A model system for simulating the dynamics of dislocation loop radius in zirconium-based alloys under irradiation, including:

[0170] The first model module is used to establish the evolution and radiation growth model of the simulated dislocation structure based on the reaction rate theory method;

[0171] The second model module is used to establish a dislocation loop radius dynamic model based on evolution and radiation growth models;

[0172] The data acquisition module is used to input the acquired material parameters into the dislocation loop radius dynamic model as numerical simulation parameters;

[0173] The simulation calculation module is used to simulate and calculate the dependence of the dislocation ring radius on the alloy element content, grain size, temperature and dose rate through the dislocation ring radius dynamic model according to the numerical simulation parameters.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a dynamic simulation method and a model system for the radius of a dislocation ring in a zirconium-based alloy under irradiation, and relates to the technical field of nuclear material irradiation simulation. and radiation growth model; establish a dislocation loop radius dynamic model based on evolution and radiation growth models; input the obtained material parameters into the dislocation loop radius dynamic model as numerical simulation parameters; the dislocation loop radius dynamic model is based on Numerical simulation parameters simulate the dependence of dislocation ring radius on alloy element content, grain size, temperature and dose rate. The invention can simulate and study the influence of radiation dose on the radius and density of dislocation rings, and can also be used to study tin and niobium as alloying elements in zirconium-based alloys on the growth kinetics, mechanical properties and irradiation growth of dislocation rings The impact of the prediction is wide, and the accuracy of the calculation results can also be guaranteed.

Description

technical field [0001] The invention relates to the technical field of nuclear material irradiation simulation, more specifically, it relates to a dynamic simulation method and a model system for the radius of a dislocation ring in a zirconium-based alloy under irradiation. Background technique [0002] Multiscale numerical simulation is one of the most effective methods to study radiation damage of nuclear materials. In the multi-scale model, the formation process of irradiation defects can be studied on different time scales and spatial scales, and then the changes in the mechanical properties of materials can be obtained. Compared with neutron irradiation experimental research, this method has a lower cost and a controllable period, and can also achieve experimental conditions that cannot be achieved by experiments or require huge costs. [0003] Among the methods of multi-scale numerical simulation, the more effective one is the method of reaction rate theory. Rate the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F17/11G06F111/10G06F119/14
CPCG06F30/20G06F17/11G06F2111/10G06F2119/14
Inventor 吴璐张伟信天缘何文伍晓勇潘荣剑覃检涛滕常青方忠强杨帆温榜毛建军张烁宋小蓉
Owner NUCLEAR POWER INSTITUTE OF CHINA