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Title: Dynamic mechanical properties of a Ti-based metallic glass matrix composite

Dynamic mechanical behavior of a Ti{sub 50}Zr{sub 20}Nb{sub 12}Cu{sub 5}Be{sub 13} bulk metallic glass composite was investigated using mechanical spectroscopy in both temperature and frequency domains. Storage modulus G′ and loss modulus G″ are determined by temperature, and three distinct regions corresponding to different states in the bulk metallic glass composite are characterized. Physical parameters, such as atomic mobility and correlation factor χ, are introduced to analyze dynamic mechanical behavior of the bulk metallic glass composite in the framework of quasi-point defects (QPD) model. The experimental results are in good agreement with the prediction of QPD model.
Authors:
; ; ; ;  [1] ;  [2]
  1. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, Shaanxi Province (China)
  2. School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi'an 710072, Shaanxi Province (China)
Publication Date:
OSTI Identifier:
22402887
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 15; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BERYLLIUM ALLOYS; CARRIER MOBILITY; COMPOSITE MATERIALS; COPPER ALLOYS; CORRELATIONS; FREQUENCY DEPENDENCE; MATRIX MATERIALS; MECHANICAL PROPERTIES; METALLIC GLASSES; NIOBIUM ALLOYS; POINT DEFECTS; SPECTROSCOPY; TEMPERATURE DEPENDENCE; TITANIUM BASE ALLOYS; ZIRCONIUM ALLOYS