Crystallization behavior and mechanical response of metallic glass induced by ion irradiation at elevated temperature

Nanoindentation experiments with a Berkovich indenter and a spherical indenter were performed to study the effects of annealing at temperatures below the glass transition temperature and room temperature ion irradiation on the near surface mechanical response of Ti40Cu32Pd14Zr10Sn2Si2 metallic glass (MG) ribbons. The specimens were isothermally annealed in vacuum at 573 K and 673 K for 4 hrs. Annealing was seen to increase the hardness of the specimens and decrease their ductility. The annealed specimens were subsequently irradiated by 3.5 MeV Cu2+ ions at room temperature using a fluence of 1 × 1012 ions/cm2 or 1 × 1016 ions/cm2. Nanoindentation experiments on the annealed and irradiated specimens showed a reduction in hardness and an increase in ductility for the specimens irradiated at a fluence of 1 × 1012 ions/cm2. Although the values of the mean contact pressure and critical shear stress under the spherical indenter showed an easier formation of shear bands after irradiation, increasing the irradiation fluence to 1 × 1016 ions/cm2 was seen to increase the hardness value and decrease the ductility of the specimens.

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Crystallization Behavior of an Au Based Metallic Glass at High Temperature

SSRN Electronic Journal ◽

10.2139/ssrn.3507455 ◽

2019 ◽

Author(s):

F.X. Bai ◽

S.J. Zheng ◽

Y.X. Wang ◽

J. Pan ◽

J.H. Yao ◽

...

Keyword(s):

High Temperature ◽

Metallic Glass ◽

Crystallization Behavior

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The temperature dependent dynamic mechanical response of a ZrCuNiAl bulk metallic glass

Materials Science and Engineering A ◽

10.1016/j.msea.2012.04.100 ◽

2012 ◽

Vol 551 ◽

pp. 100-103 ◽

Cited By ~ 13

Author(s):

Yongjiang Huang ◽

Wei Zheng ◽

Fulong He ◽

Jun Shen

Keyword(s):

Metallic Glass ◽

Bulk Metallic Glass ◽

Mechanical Response ◽

Temperature Dependent ◽

Dynamic Mechanical

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Influence of sub-Tg annealing on microstructure and crystallization behavior of TiZr-based bulk metallic glass

Journal of Non-Crystalline Solids ◽

10.1016/j.jnoncrysol.2021.120855 ◽

2021 ◽

Vol 565 ◽

pp. 120855

Author(s):

J.W. Lv ◽

D.W. Yin ◽

F.L. Wang ◽

Y.J. Yang ◽

M.Z. Ma ◽

...

Keyword(s):

Metallic Glass ◽

Bulk Metallic Glass ◽

Crystallization Behavior

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NANOSCALE DIMPLES AND PERIODIC CORRUGATIONS ON FRACTURE SURFACE OF Zr-BASED BULK METALLIC GLASS COMPOSITE

Surface Review and Letters ◽

10.1142/s0218625x19500379 ◽

2019 ◽

Vol 26 (08) ◽

pp. 1950037

Author(s):

BO SHI ◽

SHIYU LUAN ◽

PEIPENG JIN

Keyword(s):

Fracture Surface ◽

Metallic Glass ◽

Cooling Rate ◽

Bulk Metallic Glass ◽

Crystallization Behavior ◽

Glass Composite ◽

Bulk Metallic Glass Composite

Nanoscale dimples and periodic corrugations are observed on the fracture surface of Zr-based bulk metallic glass composite (BMGC). The nanoscale periodic corrugations display a curved shape, which is different from that observed in previous works. In addition, the crystallization behavior of [Formula: see text][Formula: see text][Formula: see text][Formula: see text] BMG was investigated. The second crystallization event of Zr-Cu-Ni-Al BMG can be controlled by annealing or tuning cooling rate. The in situ Zr-based BMGC was prepared via lowering cooling rate. The Zr-based BMGC displays completely brittleness.

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