Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1601790 | Intermetallics | 2007 | 4 Pages |
Abstract
Isothermal relaxation behavior just under glass transition region was investigated for bulk Pd40Ni40P20 and Pd42.5Cu30Ni7.5P20 metallic glasses. The densification of the bulk sample during relaxation was examined directly by density measurement using conventional Archimedean technique. The density of as-quenched Pd40Ni40P20 increased monotonously with time. From the density data of Pd40Ni40P20 glass, the free volume relaxation was examined and the kinetics was well described by a stretched exponential function with Kohlrausch exponent less than unity. These glasses also showed a clear two-step relaxation that may be a feature peculiar to bulk metallic glasses.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Osami Haruyama,