组元占比对层状纳米孪晶<strong>Cu</strong>力学行为的影响

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组元占比对层状纳米孪晶Cu力学行为的影响

万涛, 程钊, 卢磊

Effect of Component Proportion on Mechanical Behaviors of Laminated Nanotwinned Cu

WAN Tao, CHENG Zhao, LU Lei

图5 3种LNT Cu拉伸试样断口附近硬组元 $Ⓐ$ 和软组元 $Ⓓ$ 的微观组织(截面收缩真应变ε_T ≈ 35%)

Fig.5 Microstructures of hard component $Ⓐ$ (a1-c1) and soft component $Ⓓ$ (a2-c2) of LNT-10% (a1, a2), LNT-50% (b1, b2), and LNT-90% (c1, c2) after tensile fracture (The areas circled by dashed lines in Figs.5a1 and a2 indicate the shear bands after deformation and the arrow in Figs.5a2 indicates detwinning. The true stain is estimated from area reduction after tensile deformation ε_T ≈ 35%)