CUED Publications database

Relaxation and fracture characteristics in Co-based amorphous alloys

Tejedor, M and García, JA and Elbaile, L and Riba, JA and García-Gancedo, L and Quintana, R (2006) Relaxation and fracture characteristics in Co-based amorphous alloys. Journal of Non-Crystalline Solids, 352. pp. 5122-5125. ISSN 0022-3093

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Abstract

In this article a study of the fracture characteristics of Co66Fe4Mo2Si16B12 amorphous ribbon in the as-quenched state and after relaxation is presented. In the as-quenched state, the morphology of the crack surface shows a 'vein pattern' structure that corresponds to a large amount of plastic flow. After relaxation the surface morphology of the crack shows that when the temperature of the thermal annealing increases the plastic flow involved in the crack decreases. In the as-quenched state dynamic fracture characteristics (crack branching and stress wave induced crack) have been observed. These dynamic characteristics have not been observed in the relaxed samples but in the samples annealed at 250 °C for 20 min apart from the main crack, a crack along the width of the ribbon has been observed. © 2006 Elsevier B.V. All rights reserved.

Item Type: Article
Uncontrolled Keywords: Amorphous metals, metallic glasses Fatigue Mechanical Stress relaxation
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:42
Last Modified: 28 Nov 2014 19:06
DOI: 10.1016/j.jnoncrysol.2006.01.156