☆ 4.6 Article Proceedings Paper

Pd-cu-ni-p bulk metallic glass: A very low damping material

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2008)

Journal

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE

Volume 39A, Issue 8, Pages 1791-1796

Publisher

SPRINGER

DOI: 10.1007/s11661-007-9437-6

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Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering

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Abstract

The present work addresses damping experiments performed in a Pd-Cu-Ni-P bulk metallic glass. After an appropriated thermal treatment, this material exhibits a very low damping coefficient, down to 10(-6). This result is discussed considering the different possible origins of the damping phenomena: thermoelasticity, energy dissipation by electrons, phonons, defects, and residual stresses. Thermoelasticity and defects appear to be the most important sources of mechanical damping.

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