Guodong Song, Conghui Zhang, Yunchang Xin, Nobuhiro Tsuji, Xinde Huang, Bo Guan, Xiaomei He
{"title":"了解热轧锆板平面内屈服各向异性的机理","authors":"Guodong Song, Conghui Zhang, Yunchang Xin, Nobuhiro Tsuji, Xinde Huang, Bo Guan, Xiaomei He","doi":"10.1007/s40195-024-01683-3","DOIUrl":null,"url":null,"abstract":"<div><p>Previously, the in-plane mechanical anisotropy of Zr hot-rolled plates is ascribed mainly to the different activities of the deformation modes activated when loading along different directions. In this work, a quantitative study on the deformation behavior of a pure Zr hot-rolled plate under tension along the rolling direction (RD) and transverse direction (TD) reveals that both the activities of deformation modes and the anisotropy of grain boundary strengthening account for a tensile yield strength anisotropy along the TD and RD. Crystal plasticity simulations using viso-plastic self-consistent model show that prismatic slip is the predominant deformation mode for tension along the RD (RD-tension), while prismatic slip and basal slip are co-dominant deformation modes under tension along the TD (TD-tension). A low fraction of <span>\\(\\left\\{10\\bar{1}2\\right\\}\\)</span> twinning is also activated under TD-tension, while hardly activated under RD-tension. The activation of basal slip with a much higher critical resolve shear stress under TD-tension contributes to a higher yield strength along the TD than along the RD. The grain boundary strengthening effect under tension along the TD and RD were compared by calculating the activation stress difference (<span>\\(\\Delta {\\text{Stress}}\\)</span>) and the geometric compatibility factor (<span>\\({m}^{\\prime}\\)</span>) between neighboring grains. The results indicate a higher grain boundary strengthening for TD-tension than that for RD-tension, which will lead to a higher yield strength along the TD. That is, the anisotropy of grain boundary strengthening between TD-tension and RD-tension also plays an important role in the in-plane anisotropy along the RD and TD. Afterward, the reasons for why there is a grain-boundary-strengthening anisotropy along the TD and RD were discussed.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"37 6","pages":"1066 - 1076"},"PeriodicalIF":2.9000,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Understanding the Mechanism for the In-Plane Yielding Anisotropy of a Hot-Rolled Zirconium Plate\",\"authors\":\"Guodong Song, Conghui Zhang, Yunchang Xin, Nobuhiro Tsuji, Xinde Huang, Bo Guan, Xiaomei He\",\"doi\":\"10.1007/s40195-024-01683-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Previously, the in-plane mechanical anisotropy of Zr hot-rolled plates is ascribed mainly to the different activities of the deformation modes activated when loading along different directions. In this work, a quantitative study on the deformation behavior of a pure Zr hot-rolled plate under tension along the rolling direction (RD) and transverse direction (TD) reveals that both the activities of deformation modes and the anisotropy of grain boundary strengthening account for a tensile yield strength anisotropy along the TD and RD. Crystal plasticity simulations using viso-plastic self-consistent model show that prismatic slip is the predominant deformation mode for tension along the RD (RD-tension), while prismatic slip and basal slip are co-dominant deformation modes under tension along the TD (TD-tension). A low fraction of <span>\\\\(\\\\left\\\\{10\\\\bar{1}2\\\\right\\\\}\\\\)</span> twinning is also activated under TD-tension, while hardly activated under RD-tension. The activation of basal slip with a much higher critical resolve shear stress under TD-tension contributes to a higher yield strength along the TD than along the RD. The grain boundary strengthening effect under tension along the TD and RD were compared by calculating the activation stress difference (<span>\\\\(\\\\Delta {\\\\text{Stress}}\\\\)</span>) and the geometric compatibility factor (<span>\\\\({m}^{\\\\prime}\\\\)</span>) between neighboring grains. The results indicate a higher grain boundary strengthening for TD-tension than that for RD-tension, which will lead to a higher yield strength along the TD. That is, the anisotropy of grain boundary strengthening between TD-tension and RD-tension also plays an important role in the in-plane anisotropy along the RD and TD. Afterward, the reasons for why there is a grain-boundary-strengthening anisotropy along the TD and RD were discussed.</p></div>\",\"PeriodicalId\":457,\"journal\":{\"name\":\"Acta Metallurgica Sinica-English Letters\",\"volume\":\"37 6\",\"pages\":\"1066 - 1076\"},\"PeriodicalIF\":2.9000,\"publicationDate\":\"2024-04-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta Metallurgica Sinica-English Letters\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s40195-024-01683-3\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Metallurgica Sinica-English Letters","FirstCategoryId":"1","ListUrlMain":"https://link.springer.com/article/10.1007/s40195-024-01683-3","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Understanding the Mechanism for the In-Plane Yielding Anisotropy of a Hot-Rolled Zirconium Plate
Previously, the in-plane mechanical anisotropy of Zr hot-rolled plates is ascribed mainly to the different activities of the deformation modes activated when loading along different directions. In this work, a quantitative study on the deformation behavior of a pure Zr hot-rolled plate under tension along the rolling direction (RD) and transverse direction (TD) reveals that both the activities of deformation modes and the anisotropy of grain boundary strengthening account for a tensile yield strength anisotropy along the TD and RD. Crystal plasticity simulations using viso-plastic self-consistent model show that prismatic slip is the predominant deformation mode for tension along the RD (RD-tension), while prismatic slip and basal slip are co-dominant deformation modes under tension along the TD (TD-tension). A low fraction of \(\left\{10\bar{1}2\right\}\) twinning is also activated under TD-tension, while hardly activated under RD-tension. The activation of basal slip with a much higher critical resolve shear stress under TD-tension contributes to a higher yield strength along the TD than along the RD. The grain boundary strengthening effect under tension along the TD and RD were compared by calculating the activation stress difference (\(\Delta {\text{Stress}}\)) and the geometric compatibility factor (\({m}^{\prime}\)) between neighboring grains. The results indicate a higher grain boundary strengthening for TD-tension than that for RD-tension, which will lead to a higher yield strength along the TD. That is, the anisotropy of grain boundary strengthening between TD-tension and RD-tension also plays an important role in the in-plane anisotropy along the RD and TD. Afterward, the reasons for why there is a grain-boundary-strengthening anisotropy along the TD and RD were discussed.
期刊介绍:
This international journal presents compact reports of significant, original and timely research reflecting progress in metallurgy, materials science and engineering, including materials physics, physical metallurgy, and process metallurgy.