Dynamic behaviors of a Zr-based bulk metallic glass under ramp wave and shock wave loading
نویسندگان
چکیده
منابع مشابه
Effect of Loading Rate on Dynamic Fracture Morphology of a Zr-Based Bulk Metallic Glass
Low-velocity plate impact experiments using a single-stage gas-gun are performed on Zr58.5Cu15.6Ni12.8Al10.3Nb2.8. Compressive fracture surfaces of the samples subjected to varying impact velocities and stress amplitudes are evaluated in order to study their loading rate dependence. Samples impacted at increasing loading rates, from increasing velocities of impact, show a larger extent of local...
متن کاملSpall strength of a zirconium-based bulk metallic glass under shock-induced compression-and-shear loading
We present results of a series of plate-impact experiments conducted to understand spall threshold in a zirconium-based bulk metallic glass (BMG), Zr41.25Ti13.75Ni10Cu12.5Be22.5, following normal shock-induced compression and combined compression-and-shear loading. The experiments were conducted using a 82.5 mm bore single-stage gas-gun. A multibeam VALYN VISAR was used to measure the particle–...
متن کاملShock wave response of a zirconium-based bulk metallic glass and its composite
A zirconium-based bulk metallic glass, Zr41.2Ti13.8Cu12.5Ni10Be22.5 ~Vit 1!, and its composite, Zr56.3Ti13.8Cu6.9Ni5.6Nb5.0Be12.5 ~b-Vit!, were subjected to planar impact loading. A surprisingly low amplitude elastic precursor and bulk wave, corresponding to the elastic response of the ‘‘frozen structure’’ of the intact metallic glasses, were observed to precede the rate-dependent large deforma...
متن کاملEffects of annealing and specimen geometry on dynamic compression of a Zr-based bulk metallic glass
High strain-rate compression experiments were performed with a split-Hopkinson pressure bar (SHPB) at 500–4000/s on cylindrical samples of a Zr-based bulk metallic glass (LM-1) in both the fully amorphous and annealed conditions. The effects of changes to the specimen geometry (i.e., L/D ratio) and the material heat treatment [i.e., annealing versus amorphous (as-received)], on the peak stress,...
متن کاملFracture behaviors under pure shear loading in bulk metallic glasses
Pure shear fracture test, as a special mechanical means, had been carried out extensively to obtain the critical information for traditional metallic crystalline materials and rocks, such as the intrinsic deformation behavior and fracture mechanism. However, for bulk metallic glasses (BMGs), the pure shear fracture behaviors have not been investigated systematically due to the lack of a suitabl...
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ژورنال
عنوان ژورنال: AIP Advances
سال: 2015
ISSN: 2158-3226
DOI: 10.1063/1.4923318