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Influence of stacking fault energy on the mechanical properties in cold-rolling Cu and Cu-Ge alloys

机译：堆垛层错能对冷轧Cu和Cu-Ge合金力学性能的影响

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摘要

Cu, Cu-0.1 at.%Ge and Cu-5.7 at.%Ge with stacking fault energies (SFEs) of 78,54, and 15 mJ/m2, respec-tively, were processed by cold-rolling at the liquid nitrogen temperature. X-ray diffraction measurements indicate that decreasing SFE decreases the average grain size but increases the microstrain, dislocation density, and twin density in the cold-rolled samples. Tensile testing results show that the strength and ductility of the materials increase simultaneously with decreasing SFE. The relationship between the structure and mechanical properties of the materials is briefly discussed.
机译：在液氮温度下通过冷轧分别加工了Cu，Cu-0.1 at。％Ge和Cu-5.7 at.Ge，堆垛层错能（SFE）为78.54和15 mJ / m2。 。 X射线衍射测量表明，降低SFE会降低平均晶粒尺寸，但会增加冷轧样品中的微应变，位错密度和孪晶密度。拉伸试验结果表明，材料的强度和延展性随SFE的降低而增加。简要讨论了材料的结构与机械性能之间的关系。

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  • 来源
    《Materials Science and Engineering》 |2011年第27期|p.7867-7870|共4页
  • 作者

    X.Y. San; X.G. Liang; LP. Chen; Z.L Xia; X.K. Zhu;

  • 作者单位

    Department of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China;

    Department of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China;

    Department of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China;

    Department of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China;

    Department of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Copper; Copper alloys; Stacking fault energy; Cold-rolling; Mechanical properties;

    机译：铜;铜合金;堆垛层错能;冷轧;力学性能;

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