TY - JOUR
T1 - Correlation of dynamic and quasistatic relaxations
T2 - The Cox-Merz rule for metallic glass
AU - Kato, Hidemi
AU - Ichitsubo, Tetsu
AU - Igarashi, Hitoshi
AU - Inoue, Akihisa
N1 - Funding Information:
The present study was supported by New Energy and Industrial Technology Development Organization (NEDO) under “Technological Development of Innovative Components Based on Enhanced Functionality Metallic Glass” project, and was performed under the Interuniversity Cooperative Research Program of the Institute for Materials Research (IMR), Tohoku University.
PY - 2009
Y1 - 2009
N2 - The correlation of quasistatic and dynamic relaxations was discussed in a typical strong Zr 55 Al 10 Ni 5 Cu30 metallic glass from room temperature to T g. The quasistatic relaxation behavior, investigated by high temperature compressive testing at a constant strain rate, was compared with dynamic tensile relaxation behavior. A correlation equation of the dynamic frequency and quasistatic strain rate was successfully deduced, and then its validity was experimentally confirmed in a fragile metallic glass. Using this correlation, the Cox-Merz rule, derived for correlating the steady-state and dynamic viscosities of the polymers, is found to be applicable to metallic glasses.
AB - The correlation of quasistatic and dynamic relaxations was discussed in a typical strong Zr 55 Al 10 Ni 5 Cu30 metallic glass from room temperature to T g. The quasistatic relaxation behavior, investigated by high temperature compressive testing at a constant strain rate, was compared with dynamic tensile relaxation behavior. A correlation equation of the dynamic frequency and quasistatic strain rate was successfully deduced, and then its validity was experimentally confirmed in a fragile metallic glass. Using this correlation, the Cox-Merz rule, derived for correlating the steady-state and dynamic viscosities of the polymers, is found to be applicable to metallic glasses.
UR - http://www.scopus.com/inward/record.url?scp=71949117308&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=71949117308&partnerID=8YFLogxK
U2 - 10.1063/1.3272922
DO - 10.1063/1.3272922
M3 - Article
AN - SCOPUS:71949117308
SN - 0003-6951
VL - 95
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 23
M1 - 231911
ER -