{"title":"18CrNiMo7-6钢热变形过程中再结晶机理研究","authors":"Xiaodong Wu, Jie Zhu","doi":"10.1007/s12540-024-01883-7","DOIUrl":null,"url":null,"abstract":"<div><p>This article investigates the effects of deformation parameters on the Dynamic Recrystallization Mechanism of 18CrNiMo7-6 steel during hot working. Thermal compression experiments were conducted under varying conditions of strain, strain rate, and deformation temperature using a Gleeble-3500 Thermal Mechanical Simulator. Models for the intrinsic and Dynamic Recrystallization Volume Fractions were developed, and the microstructure was characterized using Optical Microscopy and Electron Backscatter Diffraction. The results indicate that strain, strain rate, and deformation temperature significantly influence Dynamic Recrystallization Mechanism in 18CrNiMo7-6 steel. High strains and deformation temperatures promote Continuous Dynamic Recrystallization Mechanism, whereas Discontinuous Dynamic Recrystallization Mechanism is favored at low deformation temperatures. The effect of strain rate is more intricate; lower strain rates encourage Discontinuous Dynamic Recrystallization Mechanism, while higher strain rates tend to favor Continuous Dynamic Recrystallization Mechanism.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 8","pages":"2460 - 2475"},"PeriodicalIF":4.0000,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Study of Recrystallisation Mechanism During Hot Deformation of 18CrNiMo7-6 Steel\",\"authors\":\"Xiaodong Wu, Jie Zhu\",\"doi\":\"10.1007/s12540-024-01883-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This article investigates the effects of deformation parameters on the Dynamic Recrystallization Mechanism of 18CrNiMo7-6 steel during hot working. Thermal compression experiments were conducted under varying conditions of strain, strain rate, and deformation temperature using a Gleeble-3500 Thermal Mechanical Simulator. Models for the intrinsic and Dynamic Recrystallization Volume Fractions were developed, and the microstructure was characterized using Optical Microscopy and Electron Backscatter Diffraction. The results indicate that strain, strain rate, and deformation temperature significantly influence Dynamic Recrystallization Mechanism in 18CrNiMo7-6 steel. High strains and deformation temperatures promote Continuous Dynamic Recrystallization Mechanism, whereas Discontinuous Dynamic Recrystallization Mechanism is favored at low deformation temperatures. The effect of strain rate is more intricate; lower strain rates encourage Discontinuous Dynamic Recrystallization Mechanism, while higher strain rates tend to favor Continuous Dynamic Recrystallization Mechanism.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":703,\"journal\":{\"name\":\"Metals and Materials International\",\"volume\":\"31 8\",\"pages\":\"2460 - 2475\"},\"PeriodicalIF\":4.0000,\"publicationDate\":\"2025-01-28\",\"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/s12540-024-01883-7\",\"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/s12540-024-01883-7","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}
Study of Recrystallisation Mechanism During Hot Deformation of 18CrNiMo7-6 Steel
This article investigates the effects of deformation parameters on the Dynamic Recrystallization Mechanism of 18CrNiMo7-6 steel during hot working. Thermal compression experiments were conducted under varying conditions of strain, strain rate, and deformation temperature using a Gleeble-3500 Thermal Mechanical Simulator. Models for the intrinsic and Dynamic Recrystallization Volume Fractions were developed, and the microstructure was characterized using Optical Microscopy and Electron Backscatter Diffraction. The results indicate that strain, strain rate, and deformation temperature significantly influence Dynamic Recrystallization Mechanism in 18CrNiMo7-6 steel. High strains and deformation temperatures promote Continuous Dynamic Recrystallization Mechanism, whereas Discontinuous Dynamic Recrystallization Mechanism is favored at low deformation temperatures. The effect of strain rate is more intricate; lower strain rates encourage Discontinuous Dynamic Recrystallization Mechanism, while higher strain rates tend to favor Continuous Dynamic Recrystallization Mechanism.
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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