Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-28T00:18:56.255Z Has data issue: false hasContentIssue false
  • English
  • Français

Anisotropic atomic structure in a homogeneously deformed metallic glass

Published online by Cambridge University Press:  03 March 2011

M.J. Kramer ,
R.T. Ott  and
D.J. Sordelet
M.J. Kramer*
Affiliation:
Materials and Engineering Physics Program, Ames Laboratory (USDOE), Ames, Iowa 50011; and Materials Science and Engineering Department, Iowa State University, Ames Iowa 50011
R.T. Ott
Affiliation:
Materials and Engineering Physics Program, Ames Laboratory (USDOE), Ames, Iowa 50011
D.J. Sordelet
Affiliation:
Materials and Engineering Physics Program, Ames Laboratory (USDOE), Ames, Iowa 50011
*
a) Address all correspondence to this author. e-mail: mjkramer@ameslab.gov
Get access

Abstract

The anisotropic atomic structure in a Zr41.2Ti13.8Cu12.5Ni10Be22.5 metallic glass strained during uniaxial tensile creep at 598 K was studied at room temperature using high-energy x-ray diffraction. Changes in the atomic structure were examined by comparing the total scattering function [S(Q)] and the reduced pair distribution function [G(r)] of the creep to that of a companion specimen subjected to the same heat treatment only. Two-dimensional maps of the ΔS(Q) and its Fourier transformation demonstrate the distribution in the bond orientation anisotropy increases with increasing total strain. A fit of the reduced pair distribution function using a simplified two-component model suggests that the bond length changes in the deformed creep samples are not uniform.

Keywords

AmorphousX-ray diffraction (XRD)
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 2 , September 2006 , pp. 382 - 388
Copyright
Copyright © Materials Research Society 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Chen, H.S. and Chuang, S.Y.: Structural investigation of cold-rolled metallic glasses using positron-annihilation methods. Appl. Phys. Lett. 27, 316 (1975).CrossRefGoogle Scholar
2Li, J., Wang, Z.L., and Hufnagel, T.C.: Characterization of nanometer-scale defects in metallic glasses by quantitative high-resolution transmission electron microscopy. Phys. Rev. B 65, 14 (2002).CrossRefGoogle Scholar
3Spaepen, F. and Taub, A.I.: Flow and Fracture in Amorphous Metallic Alloys edited by Luborsky, F.E. (Butterworths, London, 1983), p. 231.CrossRefGoogle Scholar
4Spaepen, F. and Turnbull, D.: Mechanism for flow and fracture of metallic glasses. Scripta Metall. 8, 563 (1974).CrossRefGoogle Scholar
5De Hey, P., Sietsma, J., and Van den Beukel, A.: Structural disordering in amorphous Pd40Ni40P20 induced by high temperature deformation. Acta Mater. 46, 5873 (1998).CrossRefGoogle Scholar
6Lu, J., Ravichandran, G., and Johnson, W.L.: Deformation behavior of the Zr41.2Ti13.8CU12.5Ni10Be22.5 bulk metallic glass over a wide range of strain-rates and temperatures. Acta Mater. 51, 3429 (2003).CrossRefGoogle Scholar
7Heggen, M., Spaepen, F., and Feuerbacher, M.: Creation and annihilation of free volume during homogeneous flow of a metallic glass. J. Appl. Phys. 97, 033506 (2005).CrossRefGoogle Scholar
8Taub, A.I. and Spaepen, F.: The kinetics of structural relaxation of a metallic-glass. Acta Metall. 28, 1781 (1980).CrossRefGoogle Scholar
9Egami, T., Dmowski, W., Kosmetatos, P., Boord, M., Tomida, T., Oikawa, E., and Inoue, A.: Deformation-induced bond-orientational order in metallic glasses. J. Non-Cryst. Solids 193, 591 (1995).CrossRefGoogle Scholar
10Suzuki, Y., Haimovich, J., and Egami, T.: Bond-orientational anisotropy in metallic glasses observed by x-ray-diffraction. Phys. Rev. B 35, 2162 (1987).CrossRefGoogle ScholarPubMed
11Tomida, T. and Egami, T.: Molecular-dynamics study of structural anisotropy and anelasticity in metallic glasses. Phys. Rev. B 48, 3048 (1993).CrossRefGoogle ScholarPubMed
12Ott, R.T., Kramer, M.J., Besser, M.F., and Sordelet, D.J.: High-energy x-ray measurements of structural anisotropy and excess free volume in a homogeneously deformed Zr-based metallic glass. Acta Mater. 54, 2463 (2006).CrossRefGoogle Scholar
13Hammersley, A.P., Svensson, S.O., Hanfland, M., Fitch, A.N., and Hausermann, D.: Two-dimensional detector software: From real detector to idealised image or two-theta scan. High Pressure Research 14, 235 (1996).CrossRefGoogle Scholar
14Hajlaoui, K., Yavari, A.R., Doisneau, B., LeMoulec, A., Botta, W.J.F., Vaughan, G., Greer, A.L., Inoue, A., Zhang, W., and Kvick, A.: Shear delocalization and crack blunting of a metallic glass containing nanoparticles: In situ deformation in TEM analysis. Scripta Mater. 54, 1829 (2006).CrossRefGoogle Scholar
15Yavari, A.R., Moulec, A. Le, Inoue, A., Nishiyama, N., Lupu, N., Matsubara, E., Botta, W.J., Vaughan, G., Di Michiel, M., and Kvick, A.: Excess free volume in metallic glasses measured by x-ray diffraction. Acta Mater. 53, 1611 (2005).CrossRefGoogle Scholar
16Louzguine-Luzgin, D.V., Inoue, A., Yavari, A.R., and Vaughan, G.: Thermal expansion of a glassy alloy studied using a realspace pair distribution function. Appl. Phys. Lett. 88, 121926 (2006).CrossRefGoogle Scholar
17Kramer, M.J.: A strategy for rapid analysis of the variations in the reduced distribution function of liquid metals and metallic glasses. J. Appl. Cryst. (2006, in press).Google Scholar
18Laridjani, M. and Sadoc, J.F.: Amorphous CuZr2 partial distribution-functions using the anomalous diffraction technique. J. Non-Cryst. Solids 106, 42 (1988).CrossRefGoogle Scholar