High-temperature deformation and crystallization behavior of a Cu36Zr48Al8Ag8 bulk metallic glass

Lee, Kwang Seok; Lee, Young-Seon

doi:10.1007/s10853-011-6070-y

Cited by 10 publications

(2 citation statements)

References 29 publications

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“…(I) La-based metallic glasses with pronounced β relaxation (II) other metallic glasses without obvious β relaxation. The activation volume data obtained in the present research and the previous literatures[37,38,45].…”

supporting

confidence: 67%

Correlation between High Temperature Deformation and β Relaxation in LaCe-Based Metallic Glass

Chen

Qiao

2020

Materials

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High-temperature deformation around the glass transition temperature Tg and the dynamic mechanical behavior of La30Ce30Al15Co25 metallic glass were investigated. According to dynamic mechanical analysis (DMA) results, La30Ce30Al15Co25 metallic glass exhibits a pronounced slow β relaxation process. In parallel, strain-rate jump experiments around the glass transition temperature were performed in a wide range of strain rate ranges. The apparent viscosity shows a strong dependence on temperature and strain rate, which reflects the transition from non-Newtonian to Newtonian flow. At low strain or high temperature, a transition was observed from a non-Newtonian viscous flow to Newtonian viscous flow. It was found that the activation volume during plastic deformation of La30Ce30Al15Co25 metallic glass is higher than that of other metallic glasses. Higher values of activation volume in La30Ce30Al15Co25 metallic glass may be attributed to existence of a pronounced slow β relaxation. It is reasonable to conclude that slow β relaxation in La30Ce30Al15Co25 metallic glass corresponds to the “soft” regions (structural heterogeneities) in metallic glass.

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confidence: 67%

Correlation between High Temperature Deformation and β Relaxation in LaCe-Based Metallic Glass

Chen

Qiao

2020

Materials

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“…Thus, it is important to study this limited stability of the supercooled liquid region carefully in order to achieve repeatable results in BMGs thermo-forming. Some important studies of this issue have already been conducted by Lee et al [6].…”

Section: Introductionmentioning

confidence: 99%

Isothermal Stability and Selected Mechanical Properties of Zr48Cu36Al8Ag8 Bulk Metallic Glass

Błyskun¹,

Latuch²,

Kulik³

2017

Archives of Metallurgy and Materials

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The aim of this work was to investigate the influence of isothermal annealing on the amorphous structure stability of the Zr 48 Cu 36 Al 8 Ag 8 alloy. A series of continuous heating examinations was performed on the differential scanning calorimeter in order to determine the temperature limits for isothermal annealing series where the time to crystallization was measured. The obtained results were calculated and a time-temperature-transformation diagram was created and discussed. Static compression test as well as microhardness measurements of the as-quenched samples gave a mechanical properties results supplement. The measured properties (σ c = 1800 MPa and 614 HV0.05) are comparable to the literature results for this alloy. Fractographic observations with the scanning electron microscope were also performed in order to prove some plasticity observed during the strength tests.

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High temperature deformation behaviors of the Zr63.36Cu14.52Ni10.12Al12 bulk metallic glass

et al. 2016

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High-temperature deformation and crystallization behavior of a Cu36Zr48Al8Ag8 bulk metallic glass

Cited by 10 publications

References 29 publications

Correlation between High Temperature Deformation and β Relaxation in LaCe-Based Metallic Glass

Correlation between High Temperature Deformation and β Relaxation in LaCe-Based Metallic Glass

Isothermal Stability and Selected Mechanical Properties of Zr48Cu36Al8Ag8 Bulk Metallic Glass

High temperature deformation behaviors of the Zr63.36Cu14.52Ni10.12Al12 bulk metallic glass

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