Ultrahard and super-stable pure aluminum with Schwarz crystal structure

Ling Fang; Yiming Zhong; Bing Wang; Wei Xu; Xiuyan Li; K. Lu

doi:10.1080/21663831.2023.2213729

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Ultrahard and super-stable pure aluminum with Schwarz crystal structure

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- Ultrahard and super-stable pure aluminum with Schwarz crystal structure
- Ultrahard and super-stable pure aluminum with Schwarz crystal structure
- 材料研究快报（英文） 2023年11卷第8期页码：662-669
- 作者机构：
  
  1. a Shenyang National Laboratory for Materials Science Chinese Academy of Sciences Institute of Metal Research Shenyang People’s Republic of China
  2. b School of Materials Science and Engineering University of Science and Technology of China
  3. a Shenyang National Laboratory for Materials Science Chinese Academy of Sciences Institute of Metal Research
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2023.2213729
  中图分类号：
- 网络首发：2023-05-22，
  
  纸质出版：2023
- 稿件说明：
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Ling Fang, Yiming Zhong, Bing Wang, 等. Ultrahard and super-stable pure aluminum with Schwarz crystal structure[J]. 材料研究快报（英文）, 2023,11(8):662-669.

Ling Fang, Yiming Zhong, Bing Wang, et al. Ultrahard and super-stable pure aluminum with Schwarz crystal structure[J]. Materials Research Letters, 2023, 11(8): 662-669.
Ling Fang, Yiming Zhong, Bing Wang, 等. Ultrahard and super-stable pure aluminum with Schwarz crystal structure[J]. 材料研究快报（英文）, 2023,11(8):662-669. DOI： 10.1080/21663831.2023.2213729.

Ling Fang, Yiming Zhong, Bing Wang, et al. Ultrahard and super-stable pure aluminum with Schwarz crystal structure[J]. Materials Research Letters, 2023, 11(8): 662-669. DOI： 10.1080/21663831.2023.2213729.

摘要

Abstract

BSTRACTRefining grains to sub-10 nm size is extremely difficult in pure aluminum due to its high stacking fault energy and low melting point. Herein

we experimentally demonstrate that Schwarz crystal (SC) structure with minimal interfaces constrained by coherent twin boundaries was induced in extremely fine grains (6 nm) of pure aluminum (99.995%) under extremely high shear strain via cryogenic high-pressure torsion. The SC structure exhibits an unprecedented hardness of 2.51 GPa and keeps stable up to 928 K (about 0.99

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相关机构

a Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences

a Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang People’s Republic of China

b State Key Laboratory of High Performance Roll Materials and Composite Forming School of Material Science and Engineering Hebei University of Technology Tianjin People’s Republic of China

a State Key Laboratory of Metastable Materials Science and Technology & School of Materials Science and Engineering Yanshan University Qinhuangdao People’s Republic of China

e Institute of Applied Physics of the National Academy of Sciences of Belarus

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