Yingjie Chen, Quanan Li, Xiaoya Chen, Jinfeng Tan, Huanju He
{"title":"AZ61 镁合金动态再结晶微观结构演变的耦合 CA-FE 模拟","authors":"Yingjie Chen, Quanan Li, Xiaoya Chen, Jinfeng Tan, Huanju He","doi":"10.1007/s12540-024-01757-y","DOIUrl":null,"url":null,"abstract":"<div><p>The dynamic recrystallization (DRX) behavior during the thermal deformation process of AZ61 magnesium alloy was systematically studied using a combined finite element (FE) and cellular automaton (CA) model. Isothermal compression experiments on AZ61 magnesium alloy were conducted using a Gleeble-1500 thermal simulator at temperatures ranging from 300 to 450 ℃ and strain rates from 0.003 to 1 s<sup>−1</sup>, obtaining true stress–strain curves under various deformation conditions. Based on the obtained experimental data, a high-precision physical constitutive model for AZ61 alloy was established, along with a DRX kinetics model and a recrystallization critical model. At the same time, the grain size model was established by measuring the microstructure of the alloy. In addition, the parameters of the CA model were found, and the dislocation density model for CA simulation was established on this basis. Simulation results indicated that the dynamic recrystallization behavior is influenced by deformation temperature, strain rate, and strain. The predicted DRX volume fraction and average grain size matched well with experimental results, with a maximum error of less than 8%, demonstrating the high accuracy of the established model. This validated the effectiveness and predictive prospect of the CA-FE coupled method, this method provides a powerful tool and theoretical guidance for studying the DRX microstructure evolution of AZ61 magnesium alloy during hot deformation.</p><h3>Graphical Abstract</h3><p>The model and simulation results required for DRX simulation during hot deformation of AZ61 magnesium alloy</p>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 2","pages":"563 - 581"},"PeriodicalIF":3.3000,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Coupled CA-FE Simulation for Dynamic Recrystallization Microstructure Evolution of AZ61 Magnesium Alloy\",\"authors\":\"Yingjie Chen, Quanan Li, Xiaoya Chen, Jinfeng Tan, Huanju He\",\"doi\":\"10.1007/s12540-024-01757-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The dynamic recrystallization (DRX) behavior during the thermal deformation process of AZ61 magnesium alloy was systematically studied using a combined finite element (FE) and cellular automaton (CA) model. Isothermal compression experiments on AZ61 magnesium alloy were conducted using a Gleeble-1500 thermal simulator at temperatures ranging from 300 to 450 ℃ and strain rates from 0.003 to 1 s<sup>−1</sup>, obtaining true stress–strain curves under various deformation conditions. Based on the obtained experimental data, a high-precision physical constitutive model for AZ61 alloy was established, along with a DRX kinetics model and a recrystallization critical model. At the same time, the grain size model was established by measuring the microstructure of the alloy. In addition, the parameters of the CA model were found, and the dislocation density model for CA simulation was established on this basis. Simulation results indicated that the dynamic recrystallization behavior is influenced by deformation temperature, strain rate, and strain. The predicted DRX volume fraction and average grain size matched well with experimental results, with a maximum error of less than 8%, demonstrating the high accuracy of the established model. This validated the effectiveness and predictive prospect of the CA-FE coupled method, this method provides a powerful tool and theoretical guidance for studying the DRX microstructure evolution of AZ61 magnesium alloy during hot deformation.</p><h3>Graphical Abstract</h3><p>The model and simulation results required for DRX simulation during hot deformation of AZ61 magnesium alloy</p>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":703,\"journal\":{\"name\":\"Metals and Materials International\",\"volume\":\"31 2\",\"pages\":\"563 - 581\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2024-08-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Metals and Materials International\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12540-024-01757-y\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metals and Materials International","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12540-024-01757-y","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Coupled CA-FE Simulation for Dynamic Recrystallization Microstructure Evolution of AZ61 Magnesium Alloy
The dynamic recrystallization (DRX) behavior during the thermal deformation process of AZ61 magnesium alloy was systematically studied using a combined finite element (FE) and cellular automaton (CA) model. Isothermal compression experiments on AZ61 magnesium alloy were conducted using a Gleeble-1500 thermal simulator at temperatures ranging from 300 to 450 ℃ and strain rates from 0.003 to 1 s−1, obtaining true stress–strain curves under various deformation conditions. Based on the obtained experimental data, a high-precision physical constitutive model for AZ61 alloy was established, along with a DRX kinetics model and a recrystallization critical model. At the same time, the grain size model was established by measuring the microstructure of the alloy. In addition, the parameters of the CA model were found, and the dislocation density model for CA simulation was established on this basis. Simulation results indicated that the dynamic recrystallization behavior is influenced by deformation temperature, strain rate, and strain. The predicted DRX volume fraction and average grain size matched well with experimental results, with a maximum error of less than 8%, demonstrating the high accuracy of the established model. This validated the effectiveness and predictive prospect of the CA-FE coupled method, this method provides a powerful tool and theoretical guidance for studying the DRX microstructure evolution of AZ61 magnesium alloy during hot deformation.
Graphical Abstract
The model and simulation results required for DRX simulation during hot deformation of AZ61 magnesium alloy
期刊介绍：
Metals and Materials International publishes original papers and occasional critical reviews on all aspects of research and technology in materials engineering: physical metallurgy, materials science, and processing of metals and other materials. Emphasis is placed on those aspects of the science of materials that are concerned with the relationships among the processing, structure and properties (mechanical, chemical, electrical, electrochemical, magnetic and optical) of materials. Aspects of processing include the melting, casting, and fabrication with the thermodynamics, kinetics and modeling.
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