Synthesis and characterization of particulate reinforced Zr57Nb5Al10Cu15.4Ni12.6 bulk metallic glass composites

Choi-Yim, Haein; Busch, Ralf; Köster, Uwe; Johnson, William L.

doi:10.1016/s1359-6454(99)00103-2

Cited by 389 publications

(200 citation statements)

References 17 publications

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“…14, 15 We do not see this improvement in the thermal stability of the amorphous solid, so the silicon contamination from melting these alloys in quartz tubes is thought to be less than 0.5% atomic.…”

Section: Experimental Methodsmentioning

confidence: 90%

Thermodynamics of Cu47Ti34Zr11Ni8, Zr52.5Cu17.9Ni14.6Al10Ti5 and Zr57Cu15.4Ni12.6Al10Nb5 bulk metallic glass forming alloys

Glade

Busch

Lee

et al. 2000

Journal of Applied Physics

182

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The differences in the thermodynamic functions between the liquid and the crystalline states of three bulk metallic glass forming alloys, Cu 47 Ti 34 Zr 11 Ni 8 , Zr 52.5 Cu 17.9 Ni 14.6 Al 10 Ti 5 , and Zr 57 Cu 15.4 Ni 12.6 Al 10 Nb 5 , were calculated. The heat capacity was measured in the crystalline solid, the amorphous solid, the supercooled liquid, and the equilibrium liquid. Using these heat capacity data and the heats of fusion of the alloys, the differences in the thermodynamic functions between the liquid and the crystalline states were determined. The Gibbs free energy difference between the liquid and the crystalline states gives a qualitative measure of the glass forming ability of these alloys. Using the derived entropy difference, the Kauzmann temperatures for these alloys were determined.

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Section: Experimental Methodsmentioning

confidence: 90%

Thermodynamics of Cu47Ti34Zr11Ni8, Zr52.5Cu17.9Ni14.6Al10Ti5 and Zr57Cu15.4Ni12.6Al10Nb5 bulk metallic glass forming alloys

Glade

Busch

Lee

et al. 2000

Journal of Applied Physics

182

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“…result in high strains to failure [5][6][7][8]. As real hi-tech materials, carbon-fiber and carbon-nanotube have been the latest reinforcement materials used in composites due to their good structural properties, better than those of any metals.…”

Section: E-mail Address: Yfsun@zzueducn (Yf Sun)mentioning

confidence: 99%

Formation, thermal stability and deformation behavior of graphite-flakes reinforced Cu-based bulk metallic glass matrix composites

Yangshan

Shek

Guan

et al. 2006

Materials Science and Engineering: A

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Graphite-flake reinforced Cu 47 Ti 34 Zr 11 Ni 8 bulk metallic glass matrix composite was fabricated by water-cooled copper mould cast. Most of the graphite flakes still keep unreacted and distribute uniformly in the amorphous matrix except that some reactive wetting occurs by the formation of TiC particles around the flakes. It reveals that the presence of graphite flakes does not affect the onset of the glass transition temperature, crystallization reaction and liquidus of the metallic glass. The resulting material shows obvious serrated flow and higher fracture strength under room temperature compressive load, comparing with the monolithic bulk metallic glass (BMG). Three types of interaction between the shear bands and graphite flakes, namely, shear band termination, shear bands branching and new shear bands formation near the graphite flakes can be observed by quasi-static uniaxial compression test and bonded interface technique through Vickers indentation.

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“…[8,[12][13][14][15][16] The addition of second phase particles to the metallic glass is a promising method to hinder propagation of a single shear band leading to catastrophic failure and to promote the formation of multiple shear bands that propagate collectively to enable plastic flow. [12][13][14]16] There are two ways to introduce the secondary phase, either by an in situ phase precipitated during cooling from the melt or by an ex situ addition of crystalline particles into the BMG matrix. [17] Both of these methods have successfully improved the tensile strainto-failure of BMGs.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of an Fe‐Based SAM2×5‐630 Metallic Glass Matrix Composite with Tungsten Particle Additions

et al. 2018

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We present the role of tungsten additions on the mechanical properties of a Fe-based structural amorphous metal (SAM2Â5-630) containing crystalline tungsten. Matrix cracking by microindentation is inhibited by the addition of tungsten and indicates that tungsten improves the fracture toughness. Response surfaces from nanoindentation arrays indicate that the hardness and modulus of the matrix phase are increased by tungsten additions. Bulk composites with 30 vol% tungsten subjected to 4-point flexure exhibited brittle fracture behavior and the characteristic strength and Weibull modulus were 165 and 8.7 MPa, respectively. The addition of tungsten did not cause devitrification of the matrix phase.

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Synthesis and characterization of particulate reinforced Zr57Nb5Al10Cu15.4Ni12.6 bulk metallic glass composites

Cited by 389 publications

References 17 publications

Thermodynamics of Cu47Ti34Zr11Ni8, Zr52.5Cu17.9Ni14.6Al10Ti5 and Zr57Cu15.4Ni12.6Al10Nb5 bulk metallic glass forming alloys

Thermodynamics of Cu47Ti34Zr11Ni8, Zr52.5Cu17.9Ni14.6Al10Ti5 and Zr57Cu15.4Ni12.6Al10Nb5 bulk metallic glass forming alloys

Formation, thermal stability and deformation behavior of graphite-flakes reinforced Cu-based bulk metallic glass matrix composites

Mechanical Properties of an Fe‐Based SAM2×5‐630 Metallic Glass Matrix Composite with Tungsten Particle Additions

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