Sn对Zr-Sn二元合金室温压缩变形机制的影响

K. Krishna, D. Prakash, D. Srivastava, N. Saibaba, J. Q. D. Fonseca, G. K. Dey, M. Preuss
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引用次数: 6

摘要

利用原位中子衍射和互补电镜技术研究了Sn对Zr变形机理的影响。对具有完全再结晶组织和典型轧制织构的二元Zr-Sn合金进行了沿试样轧制方向的原位加载和衍射实验。观察到显著的孪生活性,双胞胎为{101′2}< 101′1 >型拉伸双胞胎。结果表明,锡含量对孪核临界应力和孪核程度有较大影响。然而,观察到缠绕成核的临界塑性应变对锡含量的依赖性较弱。结果表明,显著的塑性滑移活动是孪生发生的必要条件。http://mc04.manuscriptcentral.com/astm-stp STP:技术论文选集
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influence of Sn on Deformation Mechanisms During Room Temperature Compression of Binary Zr–Sn Alloys
Role of Sn on the deformation mechanisms of Zr was investigated using in situ neutron diffraction and complementary electron microscopy techniques. Binary Zr-Sn alloys having fully recrystallized microstructure and typical rolling texture were subjected to in situ loading and diffraction experiments along the rolling direction of the sample. Significant twinning activity was observed and the twins were observed to be {101 ̅2}〈101 ̅1〉 type tensile twins. Critical stress for the twin nucleation and the extent of twinning were found to be strongly influenced by the Sn content. Critical plastic strain for the nucleation of twining, however, was observed to be weakly dependent on the Sn content. Results indicate significant plastic slip activity to be a necessary condition for the onset of twinning. http://mc04.manuscriptcentral.com/astm-stp STP: Selected Technical Papers
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