• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >The critical factors governing mechanical properties in hot-rolled Fe-0.2C-11Mn-(0-6)Al TRIP steels and fracture behavior
【24h】

The critical factors governing mechanical properties in hot-rolled Fe-0.2C-11Mn-(0-6)Al TRIP steels and fracture behavior

机译：控制热轧Fe-0.2C-11Mn-（0-6）Al TRIP钢力学性能和断裂行为的关键因素

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

In the present study, we fundamentally explore the reasons underlying mechanical property variation in hot-rolled 11Mn transformation-induced plasticity (TRIP) steels with varying Al-content. With increase in Al-content, the ultimate tensile strength (UTS) was decreased, while total elongation (TE) was increased. The variation in UTS was mainly associated with the fraction of constituent phases and stability of austenite, while the increase in total elongation (TE) with increase in Al-content was related to the increase in the fraction of ferrite. Moreover, the Al-free steel, quenched from intercritical region experienced brittle fracture. When the Al-content was increased to 2 wt%, the total elongation increased to ～22-32% and is also attributed to TRIP effect. In 4Al steel, the tensile elongation was in the range of ～19-40%, and was associated with TRIP effect and cooperative dislocation slip. In 6A1 steel, the cumulative contribution of transformation-induced plasticity (TRIP), twinning-induced plasticity (TWIP), and cooperative deformation of δ-ferrite led to high elongation of ～37-65%. The increase in the contribution of TRIP and TWIP with increase in Al-content led to dramatic change in the mode and characteristics of fracture.
机译：在本研究中，我们从根本上探索了Al含量变化的热轧11Mn相变诱发塑性（TRIP）钢的力学性能变化的根本原因。随着Al含量的增加，极限抗拉强度（UTS）降低，而总伸长率（TE）则增加。 UTS的变化主要与组成相的分数和奥氏体的稳定性有关，而总延伸率（TE）随着Al含量的增加而增加与铁素体的分数增加有关。此外，从临界区淬火的无铝钢发生脆性断裂。当Al含量增加到2 wt％时，总伸长率增加到〜22-32％，这也归因于TRIP效应。在4Al钢中，拉伸伸长率在〜19-40％的范围内，与TRIP效应和协同位错滑移有关。在6A1钢中，相变诱发塑性（TRIP），孪生诱发塑性（TWIP）和δ铁素体的协同变形的累积贡献导致〜37-65％的高延伸率。随着Al含量的增加，TRIP和TWIP的贡献增加，导致断裂方式和特征发生了巨大变化。

著录项

  • 来源
    《Materials Science and Engineering》 |2017年第23期|46-55|共10页
  • 作者

    Z.C. Li; Z.H. Cai; R.D.K. Misra;

  • 作者单位

    Laboratory for Excellence in Advanced Steel Research, Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, El Paso, TX 79968, USA,School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China;

    School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China;

    Laboratory for Excellence in Advanced Steel Research, Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, El Paso, TX 79968, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ultimate tensile strength; Total elongation; Fracture mode; Dislocation slip; TWIP effect;

    机译：极限抗拉强度;总伸长率;断裂模式脱位滑移;TWIP效果;

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