J. Mater. Sci. Technol. ›› 2006, Vol. 22 ›› Issue (06): 789-792.

• 论文 • 上一篇    下一篇

Tensile Properties of Cu with Deformation Twins Induced by SMAT

郭金宇;王科;卢磊   

  1. 中科院金属研究所 沈阳材料国家实验室
  • 收稿日期:2005-10-31 修回日期:2006-01-18 出版日期:2006-11-28 发布日期:2009-10-10
  • 通讯作者: 卢磊

Tensile properties of Cu with deformation twins induced by SMAT

Jinyu GUO, Ke WANG, Lei LU   

  1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2005-10-31 Revised:2006-01-18 Online:2006-11-28 Published:2009-10-10
  • Contact: Lei LU

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摘要： 在室温下，采用表面机械研磨技术制备了具有高密度纳米级的变形孪晶的纯铜样品。纯铜样品的屈服强度达到470MPa。这么高的强度来自孪晶界对位错运动的阻力。

关键词: 铜, 表面机械研磨, 变形孪晶, 强化

Abstract: High density nano-scale deformation twins were introduced in the surface layer of Cu sample by means of surface mechanical attrition treatment (SMAT) at room temperature. The Cu sample with deformation twins shows a yield strength of about 470 MPa in tension tests. The significant strengthening may be attributed to the effective inhibition of slip dislocations by abundant twin boundaries.

Key words: Copper, Surface mechanical attrition treatment (SMAT), Deformation twins, Strengthening