• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISIJ international >Small-angle X-ray Scattering Studies on Aging Precipitation of High-strength Soft-magnetic Stainless Steels
【24h】

Small-angle X-ray Scattering Studies on Aging Precipitation of High-strength Soft-magnetic Stainless Steels

机译：小角度X射线散射研究高强度软磁不锈钢的时效沉淀

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We investigated the effect of alloying elements Ni, Al, and Mo on the mechanical properties of precipitation-hardened soft-magnetic stainless steels, whose aging condition and chemical composition were varied. Thermodynamic calculations suggested that the aging treatments led to precipitation of a β-NiAl compound with B2 structure and Fe2Mo-type Laves phases. Although coarse precipitates, which are less effective for precipitation hardening, were observed in bright-field images obtained by transmission electron microscopy (TEM), the B2-type precipitates were detected in TEM electron diffraction patterns. By changing the concentration of the alloying elements, the B2-type β-NiAl precipitates were mainly responsible for the precipitation hardening, and the Vickers hardness was hardly affected by the Mo content. Small-angle X-ray scattering analysis was used to determine the size and number density of the fine β-NiAl precipitates, which contributed to the hardening. The high-density β-NiAl precipitates grew to a few nanometers in radius after an adequate period of aging, suggesting that the β-NiAI precipitates were responsible for the precipitation-hardening characteristics. On the other hand, the size of the precipitates was less affected by the amounts of Ni and Al, and the number density decreased with decreasing Ni and Al content. The improvement in hardness resulting from the β-NiAI precipitates had a linear relationship with the square root of the product of the precipitate size and number density.
机译：我们研究了合金元素Ni，Al和Mo对沉淀硬化的软磁不锈钢的力学性能的影响，后者的时效条件和化学成分各不相同。热力学计算表明，时效处理导致具有B2结构和Fe2Mo型Laves相的β-NiAl化合物析出。尽管在通过透射电子显微镜（TEM）获得的明场图像中观察到了对沉淀硬化不太有效的粗大沉淀，但在TEM电子衍射图中检测到了B2型沉淀。通过改变合金元素的浓度，B2型β-NiAl沉淀物主要负责沉淀硬化，而维氏硬度几乎不受Mo含量的影响。使用小角X射线散射分析来确定细化的β-NiAl沉淀物的尺寸和数量密度。经过适当的时效老化后，高密度β-NiAl沉淀物的半径增长到几纳米，这表明β-NiAl沉淀物是沉淀硬化特性的原因。另一方面，析出物的大小受Ni和Al的量的影响较小，并且随着Ni和Al含量的降低，数密度降低。由β-NiAl沉淀物产生的硬度提高与沉淀物尺寸和数密度的乘积的平方根成线性关系。

著录项

  • 来源
    《ISIJ international》 |2017年第11期|2028-2033|共6页
  • 作者

    Kozue SATOH; Shigeo SATO; Masato OHNUMA; Tatsuya NARUSE; Yonghwan KIM; Takashi EBATA; Shigeru SUZUKI; Kazuaki WAGATSUMA;

  • 作者单位

    Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577 Japan;

    Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Nakanarusawa, Hitachi, Ibaraki, 316-8511 Japan;

    Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido, 060-8628 Japan.;

    Research and Development Division, Tohoku Steel Co., Ltd., 23 aza-Nishigaoka, ooaza-Murata, Murata-machi, Shibata-gun, Miyagi, 989-1393 Japan;

    Research and Development Division, Tohoku Steel Co., Ltd., 23 aza-Nishigaoka, ooaza-Murata, Murata-machi, Shibata-gun, Miyagi, 989-1393 Japan;

    Research and Development Division, Tohoku Steel Co., Ltd., 23 aza-Nishigaoka, ooaza-Murata, Murata-machi, Shibata-gun, Miyagi, 989-1393 Japan;

    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577 Japan;

    Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577 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

    soft-magnetic stainless steel; precipitation; thermodynamic calculation; transmission electron microscopy; small-angle X-ray scattering;

    机译：软磁不锈钢;沉淀;热力学计算;透射电子显微镜小角X射线散射;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号