Core-shell Mg66Zn30Ca4 bulk metallic glasses composites reinforced by Fe with high strength and controllable degradation

The glass formability of high-manganese amorphous steel alloys reported earlier by us has been found to improve upon additions of yttrium and lanthanide elements, enabling the formation of bulk glassy samples with diameter thicknesses reaching 7 mm by casting. Based on extensive studies using different Ln additions and systematic measurements of alloy oxygen contents, the intrinsic roles of Y/Ln in attaining good glass formability in both the high-Mn alloys and previously reported high-Cr alloys are revealed. The yield strengths of the non-ferromagnetic glassy alloys obtained are estimated to be three times those of high-strength stainless steel alloys, and high elastic moduli in the range 150–200 GPa are measured. Furthermore, in the supercooled liquid regions, the glassy rods can be bent into various configurations by hand without fracturing. The observed plastic behavior together with the measured high mechanical strengths suggests that the present Fe–based bulk metallic glasses can potentially be developed as formable non-ferromagnetic amorphous steel alloys.

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High-zirconium bulk metallic glasses with high strength and large ductility

Science China Physics Mechanics and Astronomy ◽

10.1007/s11433-013-5015-7 ◽

2013 ◽

Vol 56 (3) ◽

pp. 540-544 ◽

Cited By ~ 10

Author(s):

YaoWei Yang ◽

NengBin Hua ◽

Ran Li ◽

ShuJie Pang ◽

Tao Zhang

Keyword(s):

Metallic Glasses ◽

Bulk Metallic Glasses ◽

High Strength

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Design of high strength Fe-(P, C)-based bulk metallic glasses with Nb addition

Transactions of Nonferrous Metals Society of China ◽

10.1016/s1003-6326(11)61032-7 ◽

2011 ◽

Vol 21 (11) ◽

pp. 2433-2437 ◽

Cited By ~ 6

Author(s):

Sheng-feng GUO ◽

Ye SHEN

Keyword(s):

Metallic Glasses ◽

Bulk Metallic Glasses ◽

High Strength ◽

Nb Addition

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Effect of Minor Addition of Noble Elements on Microstructure and Mechanical Properties of Ti-Based Bulk Metallic Glasses

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.148-149.241 ◽

2011 ◽

Vol 148-149 ◽

pp. 241-244 ◽

Cited By ~ 1

Author(s):

Feng Xiang Qin ◽

Guo Qiang Xie ◽

Zhen Hua Dan ◽

Akihisa Inoue

Keyword(s):

Mechanical Properties ◽

Plastic Strain ◽

Shear Band ◽

Metallic Glasses ◽

Bulk Metallic Glasses ◽

High Strength ◽

Copper Mold ◽

Copper Mold Casting ◽

Minor Addition ◽

Mold Casting

Ti-based bulk metallic glasses with minor addition of Ag, Au or Pt elements were prepared by copper mold casting. The Microstructure of the as-cast samples was examined by TEM. Nanoparticles identified as cubic Pd3Ti with crystal planes of (111), (200), (220) and (311) are observed in all the alloys modified by the minor addition of Ag, Au or Pt. The results revealed that the glassy/nanoparticle composited alloys exhibited high strength about 2000 MPa and plastic strain between 1.5-10% due to the inhibition of propagation of shear band.

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