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DOI | 10.1126/science.aax9167 |
Intragranular three-dimensional stress tensor fields in plastically deformed polycrystals | |
Hayashi, Yujiro; Setoyama, Daigo; Hirose, Yoshiharu; Yoshida, Tomoyuki; Kimura, Hidehiko | |
2019-12-20 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 366期号:6472页码:1492-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | The failure of polycrystalline materials used in infrastructure and transportation can be catastrophic. Multiscale modeling, which requires multiscale measurements of internal stress fields, is the key to predicting the deformation and failure of alloys. We determined the three-dimensional intragranular stress tensor fields in plastically deformed bulk steel using a high-energy x-ray microbeam. We observed intragranular local stresses that deviated greatly from the grain-averaged stresses and exceeded the macroscopic tensile strength. Even under deformation smaller than the uniform elongation, the intragranular stress fields were in highly triaxial stress states, which cannot be determined from the grain-averaged stresses. The ability to determine intragranular stress tensor fields can facilitate the understanding and prediction of the deformation and failure of materials through multiscale modeling. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000503861000050 |
WOS关键词 | INDIVIDUAL BULK GRAINS ; ENERGY DIFFRACTION MICROSCOPY ; IN-SITU OBSERVATION ; X-RAY MICROBEAM ; LATTICE ROTATIONS ; PHASE-TRANSFORMATIONS ; ORIENTATION SPREAD ; ELASTIC STRAINS ; TWIN NUCLEATION ; PART I |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/226504 |
专题 | 环境与发展全球科技态势 |
作者单位 | Toyota Cent R&D Labs, Nagakute, Aichi 4801192, Japan |
推荐引用方式 GB/T 7714 | Hayashi, Yujiro,Setoyama, Daigo,Hirose, Yoshiharu,et al. Intragranular three-dimensional stress tensor fields in plastically deformed polycrystals[J]. SCIENCE,2019,366(6472):1492-+. |
APA | Hayashi, Yujiro,Setoyama, Daigo,Hirose, Yoshiharu,Yoshida, Tomoyuki,&Kimura, Hidehiko.(2019).Intragranular three-dimensional stress tensor fields in plastically deformed polycrystals.SCIENCE,366(6472),1492-+. |
MLA | Hayashi, Yujiro,et al."Intragranular three-dimensional stress tensor fields in plastically deformed polycrystals".SCIENCE 366.6472(2019):1492-+. |
条目包含的文件 | 条目无相关文件。 |
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