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首页> 外文期刊>ISIJ international >Non-uniform Deformation Behavior of Coarse-grained Ultralow Carbon Steel Measured Using Digital Image Correlation Method
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Non-uniform Deformation Behavior of Coarse-grained Ultralow Carbon Steel Measured Using Digital Image Correlation Method

机译：使用数字图像相关方法测量的粗粒粒子超碳钢的非均匀变形行为

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摘要

In this work, non-uniform deformation behavior of coarse-grained ultralow carbon steel was investigated under uniaxial tension and cyclic simple shear. A digital image correlation method was used to measure strain fields at the grain level. Heterogeneous strain distribution appeared at the early stage of the process, and the heterogeneity remained almost unchanged in the subsequent deformation. Localized strain bands were observed under both uniaxial tension and simple shear, but the directions of the bands were different between the two deformation modes. It was hypothesized that the directions of the strain bands were correlated with the planes where the maximum or minimum shear stresses occurred. During cyclic simple shear, the heterogeneity of strain distribution and occurrence of strain bands depended on the shear direction. In contrast, the number of cycles had little effect on the heterogeneity of strain distribution. Comparing the grain boundaries and the strain distributions, it was observed that many of the strain-band boundaries occurred along the grain boundaries, but some of them appeared within grains.
机译：在这项工作中，在单轴张力下研究了粗粒粒子碳钢的非均匀变形行为，并在单轴张力下进行了循环简单剪切。数字图像相关方法用于测量晶粒水平的应变场。在该方法的早期阶段出现异质应变分布，在随后的变形中，异质性几乎保持不变。在单轴张力和简单的剪切下观察局部应变带，但是两个变形模式之间的带的方向不同。假设应变带的方向与发生最大或最小剪切应力的平面相关。在循环简单剪切期间，应变分布的异质性和应变带的发生依赖于剪切方向。相比之下，循环的数量对应变分布的异质性几乎没有影响。比较晶界和应变分布，观察到许多应变带边界沿晶界发生，但其中一些出现在谷物中。

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  • 来源
    《ISIJ international》 |2021年第6期|1971-1979|共9页
  • 作者

    Takayuki HAMA; Takuna NISHI; Masashi OKA; Takashi MATSUNO; Yoshitaka OKITSU; Seiji HAYASHI; Kenji TAKADA; Hirohiko TAKUDA;

  • 作者单位

    Graduate School of Energy Science Kyoto University Yoshida-Honmachi Sakyo-ku Kyoto 606-8501 Japan;

    Graduate School of Energy Science Kyoto University Yoshida-Honmachi Sakyo-ku Kyoto 606-8501 Japan;

    Graduate School of Energy Science Kyoto University Yoshida-Honmachi Sakyo-ku Kyoto 606-8501 Japan;

    Tottori University 4-101 Koyama-cho-minami Tottori Tottori 680-8552 Japan;

    Honda Motor Co. Ltd. 4630 Shimotakanezawa Haga-machi Haga-gun Tochigi 321-3393 Japan;

    Honda Motor Co. Ltd. 4630 Shimotakanezawa Haga-machi Haga-gun Tochigi 321-3393 Japan;

    Honda Motor Co. Ltd. 4630 Shimotakanezawa Haga-machi Haga-gun Tochigi 321-3393 Japan;

    Graduate School of Energy Science Kyoto University Yoshida-Honmachi Sakyo-ku Kyoto 606-8501 Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ultralow carbon steel; oligocrystal; digital image correlation; simple shear test; cyclic loading;

    机译：超级碳钢;oligocrystal;数字图像相关;简单的剪切测试;循环载荷;

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