Design of Bulk metallic glasses with high glass forming ability and enhancement of plasticity in metallic glass matrix composites: A review

The effect of the gradual substitution of Ti by Al on glass forming ability and structure in the Cu52Zr40Ti8-xAlx(x=0, 2, 4, 6, 8) alloys was studied by using XRD, DSC and SEM. Furthermor, the nanocrystallization behavior of the amorphous alloys also was studied by annealing method. The result indicates that the glass-forming ability and thermal stability is decreased with the increasing of the content of Al. On the other hand, the nano crystals with diameter of 50 - 100 nm were all observed when the five amorphous samples were annealed at 650 K for 1h.

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Effect of compositional tailoring on the glass-forming ability and mechanical properties of TiZr-based bulk metallic glass matrix composites

Materials Science and Engineering A ◽

10.1016/j.msea.2014.06.041 ◽

2014 ◽

Vol 612 ◽

pp. 310-315 ◽

Cited By ~ 7

Author(s):

D.Q. Ma ◽

J. Li ◽

Y.F. Zhang ◽

X.Y. Zhang ◽

M.Z. Ma ◽

...

Keyword(s):

Mechanical Properties ◽

Metallic Glass ◽

Bulk Metallic Glass ◽

Glass Matrix ◽

Glass Forming Ability ◽

Matrix Composites ◽

Glass Forming ◽

Glass Matrix Composites

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Co-Based Bulk Metallic Glasses with Good Soft-Magnetic Properties and High Strength

Materials Science Forum ◽

10.4028/www.scientific.net/msf.898.703 ◽

2017 ◽

Vol 898 ◽

pp. 703-708 ◽

Cited By ~ 1

Author(s):

Qi Kui Man ◽

Ya Qiang Dong ◽

Chun Tao Chang ◽

Xin Min Wang ◽

Run Wei Li

Keyword(s):

Magnetic Properties ◽

Metallic Glass ◽

Bulk Metallic Glass ◽

Metallic Glasses ◽

Bulk Metallic Glasses ◽

Eutectic Point ◽

Glass Forming Ability ◽

Soft Magnetic Properties ◽

Soft Magnetic ◽

Glass Forming

The thermal stability, glass-forming ability, soft-magnetic properties and mechanical properties of Co46Fe19+xB22.5Si5.5Nb7–x (x=0–2) bulk metallic glasses were investigated. The 5.5 at% Nb addition was found to be effective in approaching alloy to a eutectic point, resulting in an increase in glass-forming ability. By copper mold casting, bulk metallic glass rods with diameters up to 5 mm were produced. Except for high glass-forming ability, the bulk metallic glasses also exhibit good soft-magnetic properties, i.e., low coercive force of 1.34–2.14 A/m, high effective permeability at 1 kHz of 2.26–3.06×104, and high fractures strength (σf) of 4010–4460 MPa. This Co-based bulk metallic glass system with high strengths and excellent soft-magnetic properties is promising for future applications as a new functional material.

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Synthesis and Properties of Bulk Metallic Glass Matrix Composites

MRS Proceedings ◽

10.1557/proc-554-393 ◽

1998 ◽

Vol 554 ◽

Cited By ~ 6

Author(s):

Haein Choi-Yim ◽

Ralf Busch ◽

William L. Johnson

Keyword(s):

Metallic Glass ◽

Bulk Metallic Glass ◽

Glass Matrix ◽

Compressive Strain ◽

Matrix Composites ◽

X Ray Diffraction ◽

Glass Forming ◽

The Matrix ◽

Glass Matrix Composites ◽

Thermal Stability Of

AbstractBulk metallic glass matrix composites are processed and investigated by X-ray diffraction, DSC, optical microscopy, SEM, microprobe, TEM, and mechanical testing. Ceramics such as SiC, WC, or TiC, and the metals W or Ta are introduced as reinforcements into the metallic melt. The metallic glass matrix remains amorphous after adding up to 30 vol% of particles. The thermal stability of the matrix does not deteriorate after adding the particles. ZrC layers form at the interfaces between the bulk metallic glasses and the WC or SiC particles. Si and W are released into the matrix in which Si enhanced the glass forming ability. The composites are tested in compression and tension experiments. Compressive strain to failure increases by over 300% compared to the unreinforced Zr57Nb5Al10Cu15.4Ni12.6 and the energy to break of the tensile samples increases by over 50% adding 15 vol. % W.

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