• Chinese Physics B
  • Vol. 29, Issue 8, (2020)
Qi Hao1, Ji-Chao Qiao1、†, E V Goncharova2, G V Afonin2, Min-Na Liu1, Yi-Ting Cheng1, and V A Khonik2
Author Affiliations
  • 1School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi’an 70072, China
  • 2Department of General Physics, Voronezh State Pedagogical University, Lenin Street 86, Voronezh 394043, Russia
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    DOI: 10.1088/1674-1056/ab969c Cite this Article
    Qi Hao, Ji-Chao Qiao, E V Goncharova, G V Afonin, Min-Na Liu, Yi-Ting Cheng, V A Khonik. Thermal effects and evolution of the defect concentration based on shear modulus relaxation data in a Zr-based metallic glass[J]. Chinese Physics B, 2020, 29(8): Copy Citation Text show less

    Abstract

    A relationship between thermal effects and relaxation of the high-frequency shear modulus upon heat treatment of bulk Zr48(Cu5/6Ag1/6)44Al8 metallic glass is found. This relationship is attributed to the relaxation of a interstitial-type defect system frozen-in from the melt upon glass production. Calorimetric data show that thermal effects occurring on heating include heat release below the glass transition temperature, heat absorption above it and heat release caused by crystallization. The equation derived within the Interstitialcy theory can be used to calculate the shear modulus relaxation using the calorimetric data. The obtained results are used to trace the defect concentration as functions of temperature and thermal prehistory.
    Qi Hao, Ji-Chao Qiao, E V Goncharova, G V Afonin, Min-Na Liu, Yi-Ting Cheng, V A Khonik. Thermal effects and evolution of the defect concentration based on shear modulus relaxation data in a Zr-based metallic glass[J]. Chinese Physics B, 2020, 29(8):
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