Size-dependent failure mechanisms in ZrNi thin metallic glass films
(2014) Scripta Materialia — Vol. 89, p. 9-12 (2014)
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- Abstract
- The fracture toughness of submicron Zr65Ni35 sputter-deposited films is thickness dependent. The failure mechanism involves corrugations for the thickest films and a transition—at 500 nm thickness—to a perfectly flat fracture surface. Bothmechanisms are brittle-type, even though the elastic and plastic properties are independent of thickness and similar to the expected ductile bulk response.Finite-element simulations unravel the origin of the size effect and the transition of failuremode fromthe constraint on plastic dissipation.
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Citations
Ghidelli, M., Gravier, S., Blandin, J.-J., Raskin, J.-P., Lani, F., & Pardoen, T. (2014). Size-dependent failure mechanisms in ZrNi thin metallic glass films. Scripta Materialia, 89, 9-12. https://doi.org/10.1016/j.scriptamat.2014.06.011 (Original work published 2014)