Newtonian to non-Newtonian master flow curves of a bulk glass alloy Pd40Ni10Cu30P20

Hidemi Kato, Yoshihito Kawamura, Akihisa Inoue, H. S. Chen

Research output: Contribution to journalArticlepeer-review

128 Citations (Scopus)

Abstract

The viscosity and flow stress of a bulk Pd40Ni10Cu30P20 alloy glass near the glass transition were measured as a function of temperature and strain rate under compression. The steady-state viscosity of the glass for a given temperature remains constant at low strain rate, then decreases by many orders of magnitude above a critical strain rate. A master curve in term of the viscosity ratio η/ηN and the product ηNε̇ has been constructed, where η and ηN are, respectively, the steady-state viscosity and Newtonian viscosity, and ε̇ is the strain rate. The flow stress also can be represented in terms of the product ηNε̇. The master curves are fitted with a simple stress relaxation of the form 1-exp[-t/λ] with t=ε̇-1.

Original languageEnglish
Pages (from-to)3665-3667
Number of pages3
JournalApplied Physics Letters
Volume73
Issue number25
DOIs
Publication statusPublished - 1998 Dec 1

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Newtonian to non-Newtonian master flow curves of a bulk glass alloy Pd<sub>40</sub>Ni<sub>10</sub>Cu<sub>30</sub>P<sub>20</sub>'. Together they form a unique fingerprint.

Cite this