High strength, deformable nanotwinned Al–Co alloys

S. Xue; Qiang Li; D. Y. Xie; Y. F. Zhang; Han Wang; Haiyan Wang; J. Wang; X. Zhang

doi:10.1080/21663831.2018.1552211

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High strength, deformable nanotwinned Al–Co alloys

Original Report | 更新时间：2026-08-19

- High strength, deformable nanotwinned Al–Co alloys
- High strength, deformable nanotwinned Al–Co alloys
- 材料研究快报（英文） 2019年7卷第1期页码：33-39
- 作者机构：
  
  1. School of Materials Engineering Purdue University West Lafayette
  2. Nebraska Center for Energy Science Research University of Nebraska-Lincoln,Lincoln
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2018.1552211
  中图分类号：
- 网络首发：2018-12-05，
  
  纸质出版：2019
- 稿件说明：
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S. Xue, Qiang Li, D. Y. Xie, 等. High strength, deformable nanotwinned Al–Co alloys[J]. 材料研究快报（英文）, 2019,7(1):33-39.

S. Xue, Qiang Li, D. Y. Xie, et al. High strength, deformable nanotwinned Al–Co alloys[J]. Materials Research Letters, 2019, 7(1): 33-39.
S. Xue, Qiang Li, D. Y. Xie, 等. High strength, deformable nanotwinned Al–Co alloys[J]. 材料研究快报（英文）, 2019,7(1):33-39. DOI： 10.1080/21663831.2018.1552211.

S. Xue, Qiang Li, D. Y. Xie, et al. High strength, deformable nanotwinned Al–Co alloys[J]. Materials Research Letters, 2019, 7(1): 33-39. DOI： 10.1080/21663831.2018.1552211.

摘要

Abstract

BSTRACTAluminum (Al) alloys have been widely used in the transportation industry. However

most high-strength Al alloys to date have limited mechanical strength

on the order of a few hundred MPa

which is much lower than the flow stress of high-strength steels. In this study

we show the fabrication of nanocrystalline Al alloys with high-density growth twins enabled by a few atomic percent of Co solute.

In situ

uniaxial compression tests show that the flow stress of Al–Co solid solution alloys exceeds 1.5 GPa

while good work hardening capability is maintained. This study provides a new perspective on the design of high-strength Al alloys for various applications.

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references

Bufford D, Liu Y, Wang J, et al. In situ nanoindentation study on plasticity and work hardening in aluminium with incoherent twin boundaries [Article]. Nat Commun. 2014;5. doi:10.1038/ncomms5864. (Open in a new window)PubMed (Open in a new window)Web of Science ®(Open in a new window)Google Scholar

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