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Title: Inherent structure length in metallic glasses: Simplicity behind complexity

Abstract

One of the central themes in materials science is the structure-property relationship. In conventional crystalline metals, their mechanical behaviour is often dictated by well-defined structural defects such as dislocations, impurities, and twins. However, the structure-property relationship in amorphous alloys is far from being understood, due to great difficulties in characterizing and describing the disordered atomic-level structure. Here, we report a universal, yet simple, correlation between the macroscopic mechanical properties (i.e., yield strength and shear modulus) and a unique characteristic structural length in metallic glasses (MGs). Lastly, our analysis indicates that this characteristic length can incorporate effects of both the inter-atomic distance and valence electron density in MGs, and result in the observed universal correlation. The current findings shed lights on the basic understanding of mechanical properties of MGs from their disordered atomic structures.

Authors:
 [1];  [1];  [2];  [1];  [1];  [3];  [1];  [1]
  1. Univ. of Science and Technology Beijing, Beijing (China). State Key Lab. for Advanced Metals and Materials
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1259700
Grant/Contract Number:  
51371003; 51422101; 51271212
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 5; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; metals and alloys; scaling laws

Citation Formats

Wu, Yuan, Wang, Hui, Cheng, Yongqiang, Liu, Xiongjun, Hui, Xidong, Nieh, Taigang, Wang, Yandong, and Lu, Zhaoping. Inherent structure length in metallic glasses: Simplicity behind complexity. United States: N. p., 2015. Web. doi:10.1038/srep12137.
Wu, Yuan, Wang, Hui, Cheng, Yongqiang, Liu, Xiongjun, Hui, Xidong, Nieh, Taigang, Wang, Yandong, & Lu, Zhaoping. Inherent structure length in metallic glasses: Simplicity behind complexity. United States. https://doi.org/10.1038/srep12137
Wu, Yuan, Wang, Hui, Cheng, Yongqiang, Liu, Xiongjun, Hui, Xidong, Nieh, Taigang, Wang, Yandong, and Lu, Zhaoping. Thu . "Inherent structure length in metallic glasses: Simplicity behind complexity". United States. https://doi.org/10.1038/srep12137. https://www.osti.gov/servlets/purl/1259700.
@article{osti_1259700,
title = {Inherent structure length in metallic glasses: Simplicity behind complexity},
author = {Wu, Yuan and Wang, Hui and Cheng, Yongqiang and Liu, Xiongjun and Hui, Xidong and Nieh, Taigang and Wang, Yandong and Lu, Zhaoping},
abstractNote = {One of the central themes in materials science is the structure-property relationship. In conventional crystalline metals, their mechanical behaviour is often dictated by well-defined structural defects such as dislocations, impurities, and twins. However, the structure-property relationship in amorphous alloys is far from being understood, due to great difficulties in characterizing and describing the disordered atomic-level structure. Here, we report a universal, yet simple, correlation between the macroscopic mechanical properties (i.e., yield strength and shear modulus) and a unique characteristic structural length in metallic glasses (MGs). Lastly, our analysis indicates that this characteristic length can incorporate effects of both the inter-atomic distance and valence electron density in MGs, and result in the observed universal correlation. The current findings shed lights on the basic understanding of mechanical properties of MGs from their disordered atomic structures.},
doi = {10.1038/srep12137},
journal = {Scientific Reports},
number = ,
volume = 5,
place = {United States},
year = {Thu Aug 06 00:00:00 EDT 2015},
month = {Thu Aug 06 00:00:00 EDT 2015}
}

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Cited by: 19 works
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