A model of atom dense packing for metallic glasses with high-solute concentration

Bao-Chen Lu; Jia-Hao Yao; Jian Xu; Yi Li
June 2009
Applied Physics Letters;6/15/2009, Vol. 94 Issue 24, p241913
Academic Journal
Taking the chemical ordering in the metallic glasses into consideration, we have extended the efficient cluster packing model to predict the composition in high-solute concentration alloys with atomic dense packing. Its validity is supported by the good agreements between the predicted compositions with the maximum packing efficiency and the experimentally optimized bulk metallic glass formers in the Cu–Zr, Cu–Hf, and Ni–Nb binary systems. Despite its simplicity, it seems that the structure predicted by our model reflects in certain way the averaged structural configuration of metallic glasses.


Related Articles

  • Structural origin of the high glass-forming ability in Y-doped bulk metallic glasses. Liang Yang; Gu-Qing Guo; Guo-Qing Zhang; Lian-Yi Chen // Journal of Materials Research;Sep2010, Vol. 25 Issue 9, p1701 

    Structural origin of the high glass-forming ability (GFA) in multicomponent bulk metallic glasses (BMGs) caused by minor alloying was investigated using state-of-the-art synchrotron radiation techniques. It is found that a two-shell icosahedral cluster with one Y center is the basic structural...

  • Excellent soft-ferromagnetic bulk glassy alloys with high saturation magnetization. Baolong Shen; Akiba, Masahiro; Inoue, Akihisa // Applied Physics Letters;3/27/2006, Vol. 88 Issue 13, p131907 

    The development of Fe-based bulk glassy alloys (BGAs) with high glass-forming ability has become a very hot research topic, not only because of the soft-magnetic properties, but also of the high fracture strength. Here we report the discovery of excellent soft-ferromagnetic BGAs in FeMoPCBSi...

  • Effect of local structures and atomic packing on glass forming ability in CuxZr100-x metallic glasses. Peng, H. L.; Li, M. Z.; Wang, W. H.; Wang, C.-Z.; Ho, K. M. // Applied Physics Letters;1/11/2010, Vol. 96 Issue 2, p021901 

    Molecular dynamics simulations are performed for CuZr metallic alloys to study the structural and dynamical features for glass forming ability (GFA). Our analysis shows that in CuZr metallic system, although <0,0,12,0> icosahedral clusters are important, some Zr-centered clusters such as...

  • Fracture toughness and crack-resistance curve behavior in metallic glass-matrix composites. Launey, M. E.; Hofmann, D. C.; Suh, J.-Y.; Kozachkov, H.; Johnson, W. L.; Ritchie, R. O. // Applied Physics Letters;6/15/2009, Vol. 94 Issue 24, p241910 

    Nonlinear-elastic fracture mechanics methods are used to assess the fracture toughness of bulk metallic glass (BMG) composites; results are compared with similar measurements for other monolithic and composite BMG alloys. Mechanistically, plastic shielding gives rise to characteristic...

  • Superhigh strength and excellent soft-magnetic properties of [(Co1-xFex)0.75B0.2Si0.05]96Nb4 bulk glassy alloys. Shen, Baolong; Chang, Chuntao; Kubota, Takeshi; Inoue, Akihisa // Journal of Applied Physics;7/1/2006, Vol. 100 Issue 1, p013515 

    Bulk glassy alloys of [(Co1-xFex)0.75B0.2Si0.05]96Nb4 with diameters up to 4 mm were synthesized in the composition range of x=0.1–0.4. In addition to high glass-forming ability, the bulk glassy alloys exhibit superhigh fracture strength of 3980–4170 MPa and Young’s modulus...

  • Magnetic Relaxations in Amorphous Fe61Co10Y8Zr1B20 Alloy. PIETRUSIEWICZ, P.; BŁOCH, K.; GONDRO, J.; NABIAŁEK, M.; DOŠPIAŁ, M.; SZOTA, M. // Acta Physica Polonica, A.;Jun2014, Vol. 125 Issue 6, p106 

    Effects of annealing on the disaccommodation phenomenon in bulk metallic glasses (BMGs), obtained by injection-casting method have been studied. The amorphous structure has been confirmed using X-ray diffractometer. The annealing process has been performed at temperature below the...

  • Shear band formation and mechanical properties of cold-rolled bulk metallic glass and metallic glass matrix composite. Park, J. S.; Lim, H. K.; Kim, J.-H.; Park, J. M.; Kim, W. T.; Kim, D. H. // Journal of Materials Science;Apr2005, Vol. 40 Issue 8, p1937 

    The effects of cold rolling on the mechanical properties of monolithic Vitreloy 1 (Zr41.2Ti13.8Cu12.5Ni10Be22.5) BMG and ductile phase reinforcedin-situcomposite (Zr56.3Ti13.8Cu6.9Ni5.6Nb5.0Be12.5) have been investigated. The bend strength of the as-cast composite was lower than that of the...

  • Primary precipitation of icosahedral quasicrystal with rearrangement of constitutional elements in Zr65Al7.5Cu27.5 glassy alloy with low oxygen impurity. Saida, Junji; Kato, Hidemi; Inoue, Akihisa // Journal of Materials Research;Feb2005, Vol. 20 Issue 2, p303 

    The primary transformation reaction of the Zr65Al7.5Cu27.5 ternary glassy alloy with a low oxygen impurity of approximately 100 mass ppm was investigated. We have discovered the precipitation of the metastable icosahedral phase with a fine grain size of 50-100 nm in diameter accompanying with...

  • Change in soft magnetic properties of Fe-based metallic glasses during hydrogen absorption and desorption. Novák, L.; Lovas, A.; Kiss, L. F. // Journal of Applied Physics;8/15/2005, Vol. 98 Issue 4, p043904 

    The stress level can be altered in soft magnetic amorphous alloys by hydrogen absorption. The resulting changes in the soft magnetic parameters are reversible or irreversible, depending on the chemical composition. Some of these effects are demonstrated in Fe–B, Fe–W–B, and...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics