Open AccessTHEORETICAL ANALYSIS ON THE INTERNAL FRICTION OF METALLIC GLASSES NEAR Tg
Author(s) -
Xiaoguang Li,
Yizhen He
Publication year - 1991
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.40.575
Subject(s) - materials science , internal friction , glass transition , amorphous metal , relaxation (psychology) , modulus , thermodynamics , dynamic mechanical analysis , internal stress , matrix (chemical analysis) , stress relaxation , condensed matter physics , composite material , polymer , physics , creep , psychology , social psychology , alloy
In this paper we analyze and discuss the characteristics of internal friction of metallic glasses near glass transition temperature Tg based on the model of free volume and mechanical theory of solids. The relationship between stress and strain was obtained if the proportion occupied by solid-like and liquid-like regions in the matrix of glassy state was considered. It is found theoretically that the internal friction peak being of relaxation type can appear in the vicinity of Tg and the modulus decrease dramatically during glass transition. The theoretical analysis is essentially in agreement with experimental results.