Isothermal kinetics and relaxation recovery of high-frequency shear modulus in the course of structural relaxation of Pd{sub 40}Cu{sub 30}Ni{sub 10}P{sub 20} bulk glass

Journal Article · Fri May 15 00:00:00 EDT 2009 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776109050112· OSTI ID:21246893

Mitrofanov, Yu P; Vasil'ev, A N ^[1]

---

1. Moscow State University (Russian Federation)

Isothermal kinetics of relaxation of the high-frequency (1.4 MHz) shear modulus during structural relaxation of Pd{sub 40}Cu{sub 30}Ni{sub 10}P{sub 20} bulk metallic glass below the glass transition temperature is studied by an in situ method of contactless electromagnetic acoustic transformation. The kinetic law of relaxation is established. It is shown that quenching of aged samples from the supercooled liquid state leads to a decrease in the absolute value of shear modulus to below the initial value; the degree of subsequent isothermal relaxation of the modulus may be several times higher than the initial value. Possible reasons for relaxation and recovery of the shear modulus are considered.

• OSTI ID: 21246893
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 108, Issue 5; Other Information: DOI: 10.1134/S1063776109050112; Copyright (c) 2009 Pleiades Publishing, Ltd; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COPPER ALLOYS
KINETICS
METALLIC GLASSES
MHZ RANGE 01-100
NICKEL ALLOYS
PALLADIUM ALLOYS
PHASE TRANSFORMATIONS
PHOSPHORUS ADDITIONS
RELAXATION
SHEAR
TRANSITION TEMPERATURE