Erratum: “Influence of casting temperature on microstructures and mechanical properties of Cu50Zr45.5Ti2.5Y2 metallic glass prepared using copper mold casting” [J. Mater. Res. 24, 3108 (2009)]

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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Microstructure and Mechanical Properties of Cr, Mo, Fe, Ta Modified Pd-Ni-Cu-P Glassy Alloys Prepared by Copper-Mold Casting

MATERIALS TRANSACTIONS ◽

10.2320/matertrans.44.188 ◽

2003 ◽

Vol 44 (1) ◽

pp. 188-196 ◽

Cited By ~ 6

Author(s):

Chaoli Ma ◽

Akihisa Inoue

Keyword(s):

Mechanical Properties ◽

Copper Mold ◽

Copper Mold Casting ◽

Glassy Alloys ◽

Microstructure And Mechanical Properties ◽

Mold Casting

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Influence of casting temperature on microstructures and mechanical properties of Cu50Zr45.5Ti2.5Y2 metallic glass prepared using copper mold casting

Journal of Materials Research ◽

10.1557/jmr.2009.0373 ◽

2009 ◽

Vol 24 (10) ◽

pp. 3108-3115 ◽

Cited By ~ 14

Author(s):

Zhengwang Zhu ◽

Haifeng Zhang ◽

Hao Wang ◽

Bingzhe Ding ◽

Zhuang-Qi Hu ◽

...

Keyword(s):

Mechanical Properties ◽

Metallic Glass ◽

Shear Bands ◽

Great Influence ◽

Casting Temperature ◽

Second Phase ◽

Compression Tests ◽

Metallic Glass Matrix Composite ◽

Microstructures And Mechanical Properties ◽

Rapidly Solidified

The influence of casting temperatures on microstructures and mechanical properties of rapidly solidified Cu50Zr45.5Ti2.5Y2 alloy was investigated. With increasing casting temperatures, the amount of the crystalline phase decreases. At a high casting temperature, i.e., 1723 K, glass-forming ability (GFA) of the present alloy is enhanced. The results imply that adjusting the casting temperature could be used for designing the microstructures of bulk metallic glass matrix composite. Nanoindentation tests indicated that CuZr phases are slightly softer and can accommodate more plastic deformation than the amorphous matrix. Compression tests confirmed that this kind of second phase (CuZr) precipitated under lower casting temperatures helps to initiate multiple shear bands, resulting in a great improvement in mechanical properties of the samples. Our work indicates that casting temperatures have a great influence on GFA, microstructures, and mechanical properties of the rapidly solidified alloy, therefore controlling the casting temperature is crucial to the production of BMGs.

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A new Mg65Cu7.5Ni7.5Zn5Ag5Y10 bulk metallic glass with strong glass-forming ability

Journal of Materials Research ◽

10.1557/jmr.2003.0319 ◽

2003 ◽

Vol 18 (10) ◽

pp. 2288-2291 ◽

Cited By ~ 66

Author(s):

H. Ma ◽

E. Ma ◽

J. Xu

Keyword(s):

Glass Transition ◽

Transition Temperature ◽

Glass Transition Temperature ◽

Metallic Glass ◽

Bulk Metallic Glass ◽

Glass Forming Ability ◽

Copper Mold ◽

Glass Forming ◽

Copper Mold Casting ◽

Mold Casting

We report a new Mg-based bulk metallic glass-forming alloy: Mg65Cu7.5Ni7.5Zn5 Ag5Y10. The alloy exhibits a glass-forming ability significantly stronger than all previously discovered Mg-based glass formers. Fully glassy rods 9 mm in diameter can be obtained by using copper mold casting. The critical cooling rate for glass formation was estimated to be <50 Ks−1. The reduced glass-transition temperature (Trg) of the glass was determined to be 0.59.

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EFFECT OF HOT ISOSTATIC PRESSING ON MECHANICAL PROPERTIES OF Fe41Cr15Mo14C15B6Y2Co7 BMG

International Journal of Modern Physics B ◽

10.1142/s0217979206040088 ◽

2006 ◽

Vol 20 (25n27) ◽

pp. 3617-3622 ◽

Cited By ~ 2

Author(s):

QINGJUN CHEN ◽

DELIANG ZHANG ◽

JUN SHEN ◽

HONGBO FAN ◽

JIANFEI SUN ◽

...

Keyword(s):

Mechanical Properties ◽

Room Temperature ◽

Hot Isostatic Pressing ◽

Supercooled Liquid ◽

Copper Mold ◽

Porosity Level ◽

Phase Form ◽

Copper Mold Casting ◽

Mold Casting ◽

Microstructure Examination

Fe -based bulk amorphous rods of 3 mm in diameter and a composition of Fe 41 Cr 15 Mo 14 C 15 B 6 Y 2 Co 7 were produced by copper mold casting. The as-cast amorphous rods contain a small (2%) fraction of pores. To close the pores, samples cut from the amorphous rods were hot isostatically pressed (hipped) at 863 K, which is in the supercooled liquid temperature range between the glass transition temperature and the crystallization temperature of the amorphous phase, and under a pressure of 200 Mpa. Microstructure examination of the hipped samples shows that hipping results in an increase of the density of the samples from 7.9 g/cm3 to 8.0 g/cm3, and a decrease of the porosity level from 2% to 1%, and that a very small fraction of unknown crystalline phase form. As a result of these microstructure change caused by hipping, the average room temperature compressive fracture strength of the bulk metallic glass (BMG) decrease from 3500 Mpa to 3000 MPa, while the strain to fracture changes little from 1.5% to 1.4%. The mechanisms of the effect of hipping on microstructure and mechanical properties of the Fe -based BMG are discussed.

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Studies on Fe-Cr-Ni-Si-B Bulk Metallic Glass for Automotive Applications

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1114.68 ◽

2015 ◽

Vol 1114 ◽

pp. 68-75

Author(s):

Mariana Lucaci ◽

Delia Patroi ◽

Violeta Tsakiris ◽

Magdalena Valentina Lungu ◽

Eugen Manta ◽

...

Keyword(s):

Metallic Glass ◽

Bulk Metallic Glass ◽

Metallic Glasses ◽

Melt Spinning ◽

Copper Mold ◽

Technological Parameters ◽

Glass Forming ◽

Copper Mold Casting ◽

Mold Casting ◽

Melt Spin

Researches and developments were carried out for obtaining of bulk metallic glass (BMG) from the Fe-Cr-Ni-Si-B system. The used processing methods were copper mold casting and melt spinning method. The resulted materials are in form of sheets with sizes of 69.7 x 64 x 3/1.5 mm and of strips with thickness less than 50 microns, which were obtained by varying the melt spin technological parameters. The both processing variants are not suitable for obtaining such of alloy in bulk metallic glass form. Adding of zirconium to this alloy produces bulk metallic glasses only for the melt spin products. The DSC analysis emphases that the zirconium modified alloy processed by melt spinning method exhibits a high glass forming ability (GFA).

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