Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15209
Title: Thin-walled Ti41.5Zr2.5Hf5Cu 42.5Ni7.5Si1 bulk metallic glass tubes : promising energy absorbers and lightweight structures
Authors: Hu, Q
Fu, MW 
Zeng, XR
Ma, CL
Keywords: Buckling deformation
Bulk metallic glasses
Energy absorbers
Free volume
Lightweight structures
Thin-walled tubes
Issue Date: 2013
Publisher: Elsevier Science Sa
Source: Journal of alloys and compounds, 2013, v. 546, p. 180-184 How to cite?
Journal: Journal of Alloys and Compounds 
Abstract: Ti41.5Zr2.5Hf5Cu42.5Ni 7.5Si1 thin-walled bulk metallic glass tubes (BMGTs) with the outer diameter of 2.0 mm and thicknesses lower than 0.1 mm are fabricated by coreless copper mould casting method. The compression tests show the thin-walled BMGT samples have a typical buckling deformation with a densification strain of 0.8. The large buckling deformation is independent of the free volume and becomes invalid with the precipitation of completely brittle nano-crystal after annealing. Thin-walled BMGTs with thickness of 0.07 mm possess outstanding yield stress (232 MPa), average collapse stress (100 MPa), specific energy absorption (91 J/g) and a desirably small relative density (0.14), obviously outperforming the properties of existing poriferous and hollow BMG architectures, and thus demonstrating promise for use as energy absorbers and lightweight structures.
URI: http://hdl.handle.net/10397/15209
DOI: 10.1016/j.jallcom.2012.08.027
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