Generation of Nanoscale Stripes at Failure of Amorphous Metals

Abstract:

We analyzed the failure characteristics of the metallic glass Co₄₃Fe₂₀Ta_5.5B_31.5 (at.%) deformed in bending. The nanoscale fracture surface morphology respects the micromechanisms of the failure of the amorphous structure. The fracture surfaces consist of nanosized dimples (40 nm) arranged in the lines respecting the periodic corrugation zones oriented perpendicular to the crack propagation direction. The corrugation topology exhibits the point nature of the generation site, the concentric form of the stress waves and their interference.

• Periodical: Key Engineering Materials (Volume 662)
• Pages: 221-224
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.662.221
• Online since: September 2015
• Authors: Jozef Miškuf*, Kornel Csach, Alena Juríková, Maria Hurakova, Martin Miškuf, Elena Tabachnikova, Igor Psaruk, Marina Laktionova, Aleksey V. Podolskiy
• Keywords: Amorphous Alloy, Local Plastic Deformation, Nanodimples, Shear Band

References

[1] H. Sun, Q. Man, Y. Dong, et al., Effect of Nb addition on the glass-forming ability, mechanical and soft-magnetic properties in (Co0. 942Fe0. 058)72−xNbxB22. 4Si5. 6 bulk glassy alloys, J. of Alloy and Compouns 504 (2010).

DOI: 10.1016/j.jallcom.2010.03.044

[2] Z.F. Zhang, F.F. Wu, W. Gao, J. Tan, Z.G. Wang, Wavy cleavage fracture of bulk metallic glass, Applied Physics Letters 89 (2006) 251917. DOI: 10. 1063/1. 2422895.

DOI: 10.1063/1.2422895

[3] B. Shen, A. Inoue, Enhancement of the fracture strength and glass-forming ability of CoFeTaB bulk glassy alloy, J. Phys.: Condens. Matter 17 (2005) 5647. DOI: 10. 1088/0953-8984/17/37/003.

DOI: 10.1088/0953-8984/17/37/003

[4] Y.T. Wang, X. K. Xi, G. Wang, X. X. Xia, W. H. Wang, Understanding of nanoscale periodic stripes on fracture surface of metallic glasses, J. Appl. Phys. 106 (2009) 113528. DOI: 10. 1063/1. 3267880.

DOI: 10.1063/1.3267880

[5] L.F. Liu, H. A. Zhang, H. Q. Li, G. Y. Zhang, Nanoscale morphologies on the fracture surface of bulk metallic glasses in the supercooled liquid region, Scripta Mater. 60 (2009) 795-798. DOI: 10. 1016/j. scriptamat. 2009. 01. 022.

DOI: 10.1016/j.scriptamat.2009.01.022

[6] X.X. Xia, W.H. Wang, Characterization and modeling of breaking-induced spontaneous nanoscale periodic stripes in metallic glasses, Small 8 (2012) 1197. DOI: 10. 1002/smll. 201101785.

DOI: 10.1002/smll.201101785

[7] X. Teng, T. Wierzbicki, H. Couque, On the transition from adiabatic shear banding to fracture, Mechanics of Mater. 39 (2007) 107. DOI: 10. 1016/j. mechmat. 2006. 03. 001.

DOI: 10.1016/j.mechmat.2006.03.001

[8] G. Wang, D. Q. Zhao, H. Y. Bai et al., Nanoscale Periodic Morphologies on the Fracture Surface of Brittle Metallic Glasses, Phys. Rev. Lett. 98 (2007) 235501. DOI: 10. 1103/PhysRevLett. 98. 235501.

DOI: 10.1103/physrevlett.98.235501

[9] F. Kardos, D. Kral, J. Miskuf, J.S. Sereni, Fullerene graphs have exponentially many perfect matchings, J. of Mathematical Chemistry 46 (2009) 443-447. DOI: 10. 1007/s10910-008-9471-7.

DOI: 10.1007/s10910-008-9471-7

[10] M.Q. Jiang, Z. Ling, J.X. Meng, L.H. Dai, Energy dissipation in fracture of bulk metallic glasses via inherent competition between local softening and quasi-cleavage, Philosophical Magazine 88 (2008) 407-426. DOI: 10. 1080/14786430701864753.

DOI: 10.1080/14786430701864753

[11] J.D. Bernal, Geometry of the Structure of Monatomic Liquids, Nature (London) 185 (1960) 68-70. DOI: 10. 1038/185068a0.

[12] http: /en. wikipedia. org/wiki/Double-slit_experiment.

[13] M. Gao, D.W. Ding, D.Q. Zhao, H.Y. Bai, W.H. Wang, Fracture morphology pattern transition dominated by the crack tip curvature radius in brittle metallic glasses, Materials Science and Engineering A 617 (2014).

DOI: 10.1016/j.msea.2014.08.060