...
首页> 外文期刊>Materials Science and Engineering >On the strain rate sensitivity of aluminum-containing transformation- induced plasticity steels: Interplay between TRIP and TWIP effects
【24h】

On the strain rate sensitivity of aluminum-containing transformation- induced plasticity steels: Interplay between TRIP and TWIP effects

机译:关于含铝相变诱发塑性钢的应变率敏感性:TRIP和TWIP效应之间的相互作用

获取原文
获取原文并翻译 | 示例
           

摘要

The primary objective of the study is to elucidate the effect of strain rate on the deformation behavior of Al-containing transformation-induced plasticity steels (TRIP) via combination of depth-sensing nanoindentation experiments and post-mortem analyses of deformed steels using transmission electron microscopy (TEM). The strain rate sensitivity decreased with increased Al-content. The activation volume of 2Al-steel was - half (6b~3) of 6Al-steel (11b~3), where b is the magnitude of the Burgers vector. The strain rate influenced the evolution of strain-induced martensite (TRIP effect), dislocation slip and deformation twinning (TWIP effect). The interplay between TRIP and TWIP effects as a function of strain rate is analyzed and discussed in terms of the three internal energies, namely γ→ot (austenite→martensite) transformation Gibbs free energy, strain energy and stacking fault energy. These were impacted by the Al-content of the steels, which altered the austenite stability and propensity to deformation twinning. The study provides insights into the design of next generation of TRIP steels for the fabrication of automotive components.
机译:这项研究的主要目的是结合深度感应纳米压痕实验和透射电子显微镜对变形钢的验尸分析,阐明应变速率对含铝相变诱发塑性钢(TRIP)变形行为的影响。 (TEM)。应变率灵敏度随着Al含量的增加而降低。 2Al钢的激活量是6Al钢的激活量的一半(6b〜3)(11b〜3),其中b是Burgers向量的大小。应变速率影响应变诱发马氏体的演化(TRIP效应),位错滑移和变形孪晶(TWIP效应)。根据三个内部能量,即γ→ot(奥氏体→马氏体)转变吉布斯自由能,应变能和堆垛层错能,分析和讨论了TRIP和TWIP效应之间的相互作用与应变率的关系。这些受到钢中铝含量的影响,从而改变了奥氏体的稳定性和变形孪晶的倾向。该研究为汽车零件制造的下一代TRIP钢的设计提供了见识。

著录项

  • 来源
    《Materials Science and Engineering》 |2018年第10期|515-523|共9页
  • 作者单位

    Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968-0521, USA;

    Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968-0521, USA;

    Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968-0521, USA;

    Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968-0521, USA;

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

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

    Steels; Strain rate; Electron microscopy; Deformation behavior;

    机译:钢材;应变率;电子显微镜;变形行为;

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