Abstract The effect of short range ordering (SRO) on the strength-ductility match of low solid-solution hardening Ni-Cr alloys with high stacking fault energies (SFEs) were systematically investigated under tensile tests. With increasing Cr content, the SFE and friction stress keep almost unchanged but the SRO degree becomes enhanced; in this case, the deformation mechanism was evolved from wavy slip to planar slip, and deformation twinning was further induced as the Cr content exceeds 20 at.%, which leads to a unique two-stage strength-ductility match of Ni-Cr alloys. The action of SRO has merely played a decisive role for such an experimental phenomenon.

中文翻译：

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低固溶硬化镍铬合金中独特的两级强度-延展性匹配：短程排序的决定性作用

摘要 在拉伸试验下系统地研究了短程有序 (SRO) 对具有高堆垛层错能 (SFE) 的低固溶硬化 Ni-Cr 合金的强度-延展性匹配的影响。随着Cr含量的增加，SFE和摩擦应力几乎保持不变，但SRO度增加；在这种情况下，变形机制从波浪滑移演变为平面滑移，并且随着 Cr 含量超过 20 at.% 进一步诱发变形孪晶，这导致 Ni-Cr 合金具有独特的两阶段强度-塑性匹配。SRO的行动只是对这样的实验现象起到了决定性的作用。