Hostname: page-component-848d4c4894-ttngx Total loading time: 0 Render date: 2024-06-10T23:45:28.239Z Has data issue: false hasContentIssue false
  • English
  • Français

Unusual irradiation-induced disordering in Cu3Au near the critical temperature: An in situ study using electron diffraction

Published online by Cambridge University Press:  20 September 2018

Calvin Robert Lear ,
Robert S. Averback ,
Pascal Bellon ,
Andrea E. Sand  and
Marquis A. Kirk
Calvin Robert Lear*
Affiliation:
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
Robert S. Averback
Affiliation:
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
Pascal Bellon
Affiliation:
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
Andrea E. Sand
Affiliation:
Department of Physics, University of Helsinki, Helsinki FI-00014, Finland
Marquis A. Kirk
Affiliation:
Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
*
a)Address all correspondence to this author. e-mail: crlear2@illinois.edu
Get access

Abstract

Atomic mixing by replacement collision sequences and other cascade effects is well known to create chemical disorder in irradiated alloys. Most studies of irradiation-induced disordering have focused on ex situ analysis of irradiated samples; however, fast in situ techniques are necessary to measure disordering at elevated temperatures without significant interference from concurrent re-ordering processes. In the present work, we use in situ electron diffraction with high speed data collection to measure the initial change in the long-range order parameter S with ion dose ϕ during 500 keV Ne+ irradiation of Cu3Au foils. The data reveal an unexpected and dramatic increase in the disordering rate as the critical order–disorder transition temperature TC is approached. Molecular dynamics simulations show that this increase is not due to temperature-dependent cascade mixing. We attribute the enhanced disordering, instead, to coupling between point defect fluxes and the chemical state of order.

Keywords

radiation effectsdefectstransmission electron microscopy (TEM)
Type
Article
Information
Journal of Materials Research , Volume 33 , Issue 22 , 28 November 2018 , pp. 3841 - 3848
Copyright
Copyright © Materials Research Society 2018 

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

Siegel, S.: Effect of neutron bombardment on order in the alloy Cu3Au. Phys. Rev. 75, 1823 (1949).CrossRefGoogle Scholar
Jenkins, M.L., Katerbau, K-H., and Wilkens, M.: Transmission electron microscopy studies of displacement cascades in Cu3Au: I. The diffraction contrast of disordered zones. Philos. Mag. 34, 1141 (1976).CrossRefGoogle Scholar
Jenkins, M.L. and Wilkens, M.: Transmission electron microscopy studies of displacement cascades in Cu3Au: II. Experimental investigation of cascades produced by Cu ions. Philos. Mag. 34, 1155 (1976).CrossRefGoogle Scholar
Averback, R.S. and Diaz de la Rubia, T.: Displacement damage in irradiated metals and semiconductors. Solid State Phys. 51, 281 (1998).CrossRefGoogle Scholar
Kirk, M.A., Blewitt, T.H., and Scott, T.L.: Irradiation disordering of Ni3Mn by replacement collision sequences. Phys. Rev. B 15, 2914 (1977).CrossRefGoogle Scholar
Zee, R. and Wilkes, P.: The radiation-induced order-disorder transformation in Cu3Au. Philos. Mag. A 42, 463 (1980).CrossRefGoogle Scholar
Hameed, M.Z., Smallman, R.E., and Loretto, M.H.: H.V.E.M. study of ordering and disordering in Cu3Au. Philos. Mag. A 46, 707 (1982).CrossRefGoogle Scholar
Wei, L.C., Lee, Y.S., Averback, R.S., and Flynn, C.P.: Antistructure and point defect response in the recovery of ion irradiated Cu3Au. Phys. Rev. Lett. 84, 6046 (2000).CrossRefGoogle ScholarPubMed
Lee, Y.S., Averback, R.S., and Flynn, C.P.: Radiation-enhanced diffusion in Cu3Au: Effects of long-range order. Philos. Mag. Lett. 70, 269 (1994).CrossRefGoogle Scholar
Lee, Y.S.: Atomic transport mechanisms in irradiated Cu3Au. Ph.D. Dissertation, University of Illinois at Urbana-Champaign, Urbana, IL, 1996. Available at: http://hdl.handle.net/2142/23646.Google Scholar
Bragg, W.L. and Williams, E.J.: The effect of thermal agitation on atomic arrangement in alloys. I. Proc. R. Soc. London, Ser. A 145, 699 (1934).CrossRefGoogle Scholar
Williams, E.J.: The effect of thermal agitation on atomic arrangement in alloys. III. Proc. R. Soc. London, Ser. A 152, 231 (1935).CrossRefGoogle Scholar
Dienes, G.J.: Kinetics of order-disorder transformations. Acta Metall. 3, 549 (1955).CrossRefGoogle Scholar
Intermediate voltage electron microscopy (IVEM)-Tandem facility (2017). Available at: http://www.ne.anl.gov/ivem/ (accessed May 31, 2018).Google Scholar
Ziegler, J.: SRIM—The Stopping and Range of Ions in Matter. Version 2013; software for ion-target range and damage (2013). Available at: http://www.srim.org (accessed May 31, 2018).Google Scholar
Wilchinsky, Z.W.: X-ray measurement of order in the alloy Cu3Au. J. Appl. Phys. 15, 806 (1944).CrossRefGoogle Scholar
Cowley, J.M.: X-ray measurement of order in single crystals of Cu3Au. J. Appl. Phys. 21, 24 (1950).CrossRefGoogle Scholar
Keating, D.T. and Warren, B.E.: Long-range order in β-brass and Cu3Au. J. Appl. Phys. 22, 286 (1951).CrossRefGoogle Scholar
Cowley, J.M.: An approximate theory of order in alloys. Phys. Rev. 77, 669 (1950).CrossRefGoogle Scholar
Gao, F., Bacon, D.J., Flewitt, P.E.J., and Lewis, T.A.: A molecular dynamics study of temperature effects on defect production by displacement cascades in α-iron. J. Nucl. Mater. 249, 77 (1997).CrossRefGoogle Scholar
Hsieh, H., Diaz de la Rubia, T., Averback, R.S., and Benedek, R.: Effect of temperature on the dynamics of energetic displacement cascades: A molecular dynamics study. Phys. Rev. B 40, 9986 (1989).CrossRefGoogle ScholarPubMed
Nordlund, K., Ghaly, M., and Averback, R.: Defect production in collision cascades in elemental semiconductors and fcc metals. Phys. Rev. B 57, 7556 (1998).CrossRefGoogle Scholar
Brinkman, J.A., Dixon, C.E., and Meechan, C.J.: Interstitial and vacancy migration in Cu3Au and copper. Acta Metall. 2, 38 (1954).CrossRefGoogle Scholar
Lee, Y.S., Flynn, C.P., and Averback, R.S.: Thermal and radiation-enhance diffusion in Cu3Au. Phys. Rev. B 60, 881 (1999).CrossRefGoogle Scholar
Averback, R.S., Benedek, R., and Merkle, K.L.: Ion-irradiation studies of the damage function of copper and silver. Phys. Rev. B 18, 4156 (1978).CrossRefGoogle Scholar
Wei, L.C., Lang, E., Flynn, C.P., and Averback, R.S.: Freely migrating defects in ion-irradiated Cu3Au. Appl. Phys. Lett. 75, 805 (1999).CrossRefGoogle Scholar
Andersen, J.V. and Mouritsen, O.G.: Steady-state properties of a finite system driven by a chemical-potential gradient. Phys. Rev. Lett. 65, 440 (1990).CrossRefGoogle ScholarPubMed
Martin, G.: Relaxation rate of conserved and nonconserved order parameters in replacive transitions. Phys. Rev. B 50, 12362 (1994).CrossRefGoogle ScholarPubMed
Bellon, P. and Martin, G.: Coupled relaxation of concentration and order fields in the linear regime. Phys. Rev. B 66, 1 (2002).CrossRefGoogle Scholar
Supplementary material: PDF

Lear et al. supplementary material

Lear et al. supplementary material 1

Download Lear et al. supplementary material(PDF)
PDF 1.1 MB