High strength ductile Cu-base metallic glass

Eckert, J.; Das, J.; Kim, K.B.; Baier, F.; Tang, Mingdong; Wang, W.H.; Zhang, Z.F.

doi:10.1016/j.intermet.2006.01.003

Cited by 129 publications

(75 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Metallic glasses based on Cu are today extensively used for various applications due to their high corrosion resistance and extraordinary high strength coupled with great ductility at room temperature (up to 18 %) [1]. Great ductility, which is uncommon for the vast majority of metallic glasses, predetermines Cu-based glasses for applications where deformation can be converted into measurable units such as fluid flow rate or electric signals and in this way they can be applied for different kinds of construction materials or sensors.…”

Section: Introductionmentioning

confidence: 99%

Atomic structure of Cu–Zr–Ti metallic glasses subjected to high temperature annealing

Durisin

Balga

Saksl

et al. 2014

Journal of Alloys and Compounds

View full text Add to dashboard Cite

An influence of high temperature annealing process (before crystallization) on the atomic structure of two different as-prepared ribbon Cu-Zr-Ti metallic glasses (Cu 60 Zr 20 Ti 20 and Cu 55 Zr 16 Ti 29 , at. %) was experimentally studied by means of differential scanning calorimetry and in situ hard X-ray diffraction. Results of our experiments prove different atomic structure and behaviour of the glasses upon the annealing. Special emphasis is placed on the thermally activated effects which precede the crystallization. During the annealing, both glasses initially show with elevated temperature continuous short and middle range order thermal expansion and an overall decline of the atomic structure ordering. But above a temperature, which can be slightly different for every mean atomic neighbour (or every atomic coordination shell), one can observe a change in behaviour of the glasses: the glasses modify the thermal expansion rate of most of the mean atomic neighbours' distances and show a tendency to increase the degree of ordering of the atomic structure. Both these effects are more pronounced for Cu 55

show abstract

Section: Introductionmentioning

confidence: 99%

Atomic structure of Cu–Zr–Ti metallic glasses subjected to high temperature annealing

Durisin

Balga

Saksl

et al. 2014

Journal of Alloys and Compounds

View full text Add to dashboard Cite

show abstract

“…Strength of 2265 MPa and ductility up to 18% are reported for this alloy at room temperature 4 . Among the binary copper alloys, the Cu-Zr system has the highest glass-forming ability (GFA), among which Cu 46 Zr 54 has a critical casting thickness up to 2 mm [5][6][7] .…”

Section: Introductionmentioning

confidence: 71%

Consolidation of the Cu46Zr42Al7Y5 amorphous ribbons and powder alloy by hot extrusion

et al. 2012

View full text Add to dashboard Cite

The amorphous Cu 46 Zr 42 Al 7 Y 5 alloy presents large supercooled liquid region (∆T X = 100 K), with a viscosity of about 10 6 N.s/m 2 where the material can flow as a liquid, making it possible an easy deformation in this temperature region. The aim of this work was to analyze processing routes to produce bulks of metallic glasses. Two kinds of materials were used: amorphous powders and ribbons, both were consolidated by hot extrusion in temperatures inside the range between T g and T x , with a ram speed of 1 mm/min and extrusion ratio of 3 : 1. Analysis of X-Ray Diffratometry (XRD), Differential Scanning Calorimetry (DSC) and Scanning Electron Microscopy (SEM), revealed that the proposed consolidation routes were effective to produce large bulks of amorphous materials, even with the strong decreasing of ∆T X observed after deformation by milling and during extrusion.

show abstract

“…In order to understand the macroscopic plasticity of the BMGs both nano-scale structural and chemical heterogeneities [9][10][11][12][13][14][15][16] have been suggested to offer a low barrier for nucleation of the shear bands, and to generate the multiplication of the shear bands. 1) Furthermore, beyond the ductility issue in the present investigations, one interesting finding is the occurrence of the work hardening under room temperature compression as shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…12,13) Based on an alloy design strategy similar to the (Cu 50 Zr 50 )-based BMG, a series of (Cu 50 Ti 50 )-and (Cu 50 Hf 50 )-based BMGs also has been successfully developed with high ductility. 14,15) However, in case of (Cu 50 Ti 50 )-based BMGs, the several substitutions for the base elements, i.e., Cu and Ti are quite necessary in order to improve the GFA. From the previous investigations on GFA of the (Cu 50 Ti 50 )-based BMGs, the substitution of Zr and Ni/Co for Ti and Cu plays an important role to enhance the GFA of the Cu 50 Ti 50 alloy.…”

Section: Introductionmentioning

confidence: 99%

Be Effect on Glass-Forming Ability and Mechanical Properties of Ti-Cu-Co-Zr-Sn Bulk Metallic Glasses

et al. 2006

View full text Add to dashboard Cite

A series of Ti 44 Cu 44Àx Co 4 Zr 6 Sn 2 Be x bulk metallic glasses with x ¼ 0{5:1 has been systematically investigated in terms of glass-forming ability and mechanical properties at room temperature. With the small amount of Be addition, the glass forming ability as well as ductility can be significantly increased leading to the fully amorphous rod having the diameter larger than 4 mm and ductility larger than 10%. Upon compressing the bulk metallic glass Ti 44 Cu 38:9 Co 4 Zr 6 Sn 2 Be 5:1 , a work hardening-like behavior that may be attributed to structural heteorgeniety was observed.

show abstract

High strength ductile Cu-base metallic glass

Cited by 129 publications

References 41 publications

Atomic structure of Cu–Zr–Ti metallic glasses subjected to high temperature annealing

Atomic structure of Cu–Zr–Ti metallic glasses subjected to high temperature annealing

Consolidation of the Cu46Zr42Al7Y5 amorphous ribbons and powder alloy by hot extrusion

Be Effect on Glass-Forming Ability and Mechanical Properties of Ti-Cu-Co-Zr-Sn Bulk Metallic Glasses

Contact Info

Product

Resources

About