...
首页> 外文期刊>Materials Science and Engineering >An examination of the elastic distortions of anvils in high-pressure torsion
【24h】

An examination of the elastic distortions of anvils in high-pressure torsion

机译:高压扭转中砧的弹性变形的检查

获取原文
获取原文并翻译 | 示例
           

摘要

Experiments and finite element modelling were used to examine the effect of elastic distortions of the anvils on plastic flow and sample geometry in the compression stage in high-pressure torsion. The results demonstrate that the curved disc surfaces observed consistently in HPT processing originate from elastic deformation of the anvils and the measured variations in the thicknesses of the samples depend upon the imposed pressure. It is shown also that the samples are further deformed during unloading of the anvils and this produces a peak in the strain in the central region of the disc as recorded in several experimental measurements of the local microhardness.
机译:实验和有限元建模被用来检查砧座的弹性变形在高压扭转压缩阶段对塑性流动和样品几何形状的影响。结果表明,在HPT处理过程中始终观察到的弯曲的圆盘表面源自砧座的弹性变形,并且所测得的样品厚度变化取决于所施加的压力。还显示出样品在砧座的卸载过程中进一步变形,这在盘的中心区域的应变中产生峰值,如在局部显微硬度的几次实验测量中所记录的。

著录项

  • 来源
    《Materials Science and Engineering》 |2015年第17期|201-208|共8页
  • 作者单位

    Materials Research Group, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, UK,CAPES Foundation, Ministry of Education of Brazil, Brasilia 70040-020, DF, Brazil;

    Department of Materials Engineering and Civil Construction, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil;

    Department of Mechanical Engineering, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil;

    Materials Research Group, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, UK,Department of Aerospace & Mechanical Engineering and Materials Science, University of Southern California, Los Angeles, CA 90089-1453, USA;

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

    Finite element method; Hardness measurements; High-pressure torsion; Severe plastic deformation;

    机译:有限元法;硬度测量;高压扭力;严重的塑性变形;

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