DataVXACS Applied Materials & InterfacesPaper
journal article·2023-03-15

Scaling Law for Impact Resistance of Amorphous Alloys Connecting Atomistic Molecular Dynamics with Macroscale Experiments

Yujie Cheng, Jinlei Dong, Fucheng Li, Yidi Shen, Qi An, Kailu Xiao, Minqiang Jiang, Yanhui Liu, Chenguang Huang, Xianqian Wu, William A. Goddard

ACS Applied Materials & Interfaces· Volume 15· Issue 10
Publisher page
Source abstract

Abstract

Ta amorphous metallic alloy as a prototype materials system, we derive the scaling law of impact resistance for amorphous alloys. We use laser-induced supersonic micro-ballistic impact experiments to measure for the first time the size-dependent impact response of amorphous alloys. We also report the results of molecular dynamics (MD) simulations for the same system but at much smaller scales. Comparing these results, we determined a law for scaling both length and time scales based on dimensional analysis. It connects the time and length scales of the experimental results on the impact resistance of amorphous alloys to that of the MD simulations, providing a method for bridging the gap in comparing the dynamic behavior of amorphous alloys at various scales and a guideline for the fabrication of new amorphous alloy materials with extraordinary impact resistance.
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Research context

Metals & alloys

OpenAlex topics: Metallic Glasses and Amorphous Alloys · Material Dynamics and Properties · Nonlinear Optical Materials Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China

School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China

Institute of Fluid Physics, CAEP, Mianyang 621999, China

Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, United States

State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China

Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States

Funding

Office of Naval Research · National Natural Science Foundation of China

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