Twin hopping in nanolayered Zr-2.5Nb

Jie-Wen Zhang; Brandon Leu; M. Arul Kumar; Irene J. Beyerlein; Wei-Zhong Han

doi:10.1080/21663831.2020.1755902

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Twin hopping in nanolayered Zr-2.5Nb

Original Reports | 更新时间：2026-08-19

- Twin hopping in nanolayered Zr-2.5Nb
- Materials Research Letters Vol. 8, Issue 8, Pages: 307-313(2020)
- 作者机构：
  
  1. Center for Advancing Materials Performance from the Nanoscale State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong University
  2. Materials Department University of California Santa Barbara
  3. Materials Science and Technology Division Los Alamos National Laboratory Los Alamos
  4. Materials Department University of California Santa Barbara CA USA
  5. Department of Mechanical Engineering University of California Santa Barbara
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2020.1755902
  CLC：
- Online First：28 April 2020，
  
  Published：2020
- 稿件说明：
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Jie-Wen Zhang, Brandon Leu, M. Arul Kumar, et al. Twin hopping in nanolayered Zr-2.5Nb[J]. Materials Research Letters, 2020, 8(8): 307-313.
DOI：

Jie-Wen Zhang, Brandon Leu, M. Arul Kumar, et al. Twin hopping in nanolayered Zr-2.5Nb[J]. Materials Research Letters, 2020, 8(8): 307-313. DOI： 10.1080/21663831.2020.1755902.

摘要

Abstract

BSTRACTTwinning in coarse-grained Zr is ubiquitous but not in nanostructured Zr due to the strong nano-confinement. Here we show that hexagonal close-packed (hcp) twins can proliferate in a nanolayered Zr-Nb as a result of the introduction of ductile body centered cubic (bcc) nanolayers. Both common {11¯02} twins and less common {1¯1¯21} twins are found to propagate across the nanolayers by a novel twin hopping mechanism from one hcp layer to another. The fine ductile bcc nanolayers act as buffers that lower the back stress at the hcp/bcc interface far below that which usually constrains twinning.

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