Skip to main content
    • Aa
    • Aa

Grain boundary character dependence of radiation-induced segregation in a model Ni–Cr alloy

  • Christopher M. Barr (a1), Leland Barnard (a2), James E. Nathaniel (a3), Khalid Hattar (a4), Kinga A. Unocic (a5), Izabela Szlurfarska (a6), Dane Morgan (a6) and Mitra L. Taheri (a7)...

Ni-based fcc alloys are frequently used as critical structural materials in nuclear energy applications. Despite extensive studies, fundamental questions remain regarding point defect migration and solute segregation as a function of grain boundary character after irradiation. In this study, a coupled experimental and modeling approach is used to understand the response of grain boundary character in a model Ni–5Cr alloy after high temperature heavy-ion irradiation. Radiation-induced segregation and void denuded zones were experimentally examined as a function of grain boundary character, while a kinetic rate theory model with grain boundary character boundary conditions was used to theoretically model Cr depletion in the alloy system. The results highlight major variations in the radiation response between the coherent and incoherent twin grain boundaries, but show limited disparity in defect sink strength between random low- and high-angle grain boundary regimes.

Corresponding author
b)Address all correspondence to this author. e-mail:
Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

S.J. Zinkle and G.S. Was : Materials challenges in nuclear energy. Acta Mater. 61, 735 (2013).

E.A. Kenik and J.T. Busby : Radiation-induced degradation of stainless steel light water reactor internals. Mater. Sci. Eng., R 73, 67 (2012).

S.M. Bruemmer , E.P. Simonen , P.M. Scott , P.L. Andresen , G.S. Was , and J.L. Nelson : Radiation-induced material changes and susceptibility to intergranular failure of light-water-reactor core internals. J. Nucl. Mater. 274, 299 (1999).

G.S. Was , J.P. Wharry , B. Frisbie , B.D. Wirth , D. Morgan , J.D. Tucker , and T.R. Allen : Assessment of radiation-induced segregation mechanisms in austenitic and ferritic–martensitic alloys. J. Nucl. Mater. 411, 41 (2011).

J.J. Kai , F.R. Chen , and T.S. Duh : Effects of grain boundary misorientation on radiation-induced solute segregation in proton irradiated 304 stainless steels. Mater. Trans. 45, 40 (2004).

N. Sakaguchi , M. Endo , S. Watanabe , H. Kinoshita , S. Yamashita , and H. Kokawa : Radiation-induced segregation and corrosion behavior on Σ3 coincidence site lattice and random grain boundaries in proton-irradiated type-316L austenitic stainless steel. J. Nucl. Mater. 434, 65 (2013).

N. Li , J. Wang , Y.Q. Wang , Y. Serruys , M. Nastasi , and A. Misra : Incoherent twin boundary migration induced by ion irradiation in Cu. J. Appl. Phys. 113, 023508 (2013).

N. Li , K. Hattar , and A. Misra : In situ probing of the evolution of irradiation-induced defects in copper. J. Nucl. Mater. 439, 185 (2013).

K.G. Field , L.M. Barnard , C.M. Parish , J.T. Busby , D. Morgan , and T.R. Allen : Dependence on grain boundary structure of radiation induced segregation in a 9wt.% Cr model ferritic/martensitic steel. J. Nucl. Mater. 435, 172 (2013).

K.G. Field , B.D. Miller , H.J.M. Chichester , K. Sridharan , and T.R. Allen : Relationship between lath boundary structure and radiation induced segregation in a neutron irradiated 9 wt.% Cr model ferritic/martensitic steel. J. Nucl. Mater. 445, 143 (2014).

C.M. Barr , G.A. Vetterick , K.A. Unocic , K. Hattar , X.M. Bai , and M.L. Taheri : Anisotropic radiation induced segregation in 316L austenitic stainless steel with grain boundary character. Acta Mater. 67, 145 (2014).

G-G. Lee , H-H. Jin , Y-B. Lee , and J. Kwon : Observation and rate theory modeling of grain boundary segregation in Σ3 twin boundaries in ion-irradiated stainless steel 316. J. Nucl. Mater. 449, 234 (2014).

W.Z. Han , M.J. Demkowicz , E.G. Fu , Y.Q. Wang , and A. Misra : Effect of grain boundary character on sink efficiency. Acta Mater. 60, 6341 (2012).

X-M. Bai , L. Vernon , R. Hoagland , A. Voter , M. Nastasi , and B.P. Uberuaga : Role of atomic structure on grain boundary-defect interactions in Cu. Phys. Rev. B. 85, 214103 (2012).

M.A. Tschopp , K. Solanki , F. Gao , X. Sun , M. Khaleel , and M. Horstemeyer : Probing grain boundary sink strength at the nanoscale: Energetics and length scales of vacancy and interstitial absorption by grain boundaries in α-Fe. Phys. Rev. B. 85, 1 (2012).

M.A. Tschopp , M.F. Horstemeyer , F. Gao , X. Sun , and M. Khaleel : Energetic driving force for preferential binding of self-interstitial atoms to Fe grain boundaries over vacancies. Scr. Mater. 64, 908 (2011).

L. Barnard , J.D. Tucker , S. Choudhury , T.R. Allen , and D. Morgan : Modeling radiation induced segregation in Ni–Cr model alloys from first principles. J. Nucl. Mater. 425, 8 (2012).

L. Barnard and D. Morgan : Ab initio molecular dynamics simulation of interstitial diffusion in Ni–Cr alloys and implications for radiation induced segregation. J. Nucl. Mater. 449, 225 (2014).

J.D. Tucker , R. Najafabadi , T.R. Allen , and D. Morgan : Ab initio-based diffusion theory and tracer diffusion in Ni–Cr and Ni–Fe alloys. J. Nucl. Mater. 405, 216 (2010).

D.E. Brandon : The structure of high-angle grain boundaries. Acta Metall. 14, 1479 (1966).

V. Randle : A methodology for grain boundary plane assessment by single-section trace analysis. Scr. Mater. 44, 2789 (2001).

G.S. Was and T. Allen : Intercomparison of microchemical evolution under various types of particle irradiation. J. Nucl. Mater. 205, 332 (1993).

R.E. Stoller , M.B. Toloczko , G.S. Was , A.G. Certain , S. Dwaraknath , and F.A. Garner : On the use of SRIM for computing radiation damage exposure. Nucl. Instrum. Methods Phys. Res., Sect. B 310, 75 (2013).

F.A. Garner : Impact of the injected interstitial on the correlation of charged particle and neutron-induced radiation damage. J. Nucl. Mater. 117, 177 (1983).

D.B. Williams and C.B. Carter : The Transmission Electron Microscope. In Transmission Electron Microscopy: A Textbook for Materials Science. (Springer, 2009).

H. Wiedersich , P.R.R. Okamoto , and N.Q. Lam : A theory of radiation-induced segregation in concentrated alloys. J. Nucl. Mater. 83, 98 (1979).

T. Duh , J. Kai , F. Chen , and L. Wang : Numerical simulation modeling on the effects of grain boundary misorientation on radiation-induced solute segregation in 304 austenitic stainless steels. J. Nucl. Mater. 294, 267273 (2001).

J. Ruzickova and B. Million : Self-diffusion of the components in the fcc phase of binary solid solutions of the Fe-Ni-Cr system. Mater. Sci. Eng. 50, 59 (1981).

H. Ullmaier , P. Ehrhart , P. Jung , and H. Schultz : Atomic Defects in Metals (Springer, Berlin, 1991).

J.D. Rittner and D.N. Seidman : <110> symmetric tilt grain-boundary structures in fcc metals with low stacking-fault energies. Phys. Rev. B 54, 6999 (1996).

D.L. Olmsted , S.M. Foiles , and E.A. Holm : Survey of computed grain boundary properties in face-centered cubic metals: I. Grain boundary energy. Acta Mater. 57, 3694 (2009).

K.Y. Yu , D. Bufford , F. Khatkhatay , H. Wang , M.A. Kirk , and X. Zhang : In situ studies of irradiation-induced twin boundary migration in nanotwinned Ag. Scr. Mater. 69, 385 (2013).

K.Y. Yu , D. Bufford , C. Sun , Y. Liu , H. Wang , M.A. Kirk , M. Li , and X. Zhang : Removal of stacking-fault tetrahedra by twin boundaries in nanotwinned metals. Nat. Commun. 4, 1377 (2013).

L. Priester : Grain Boundaries: From Theory to Engineering, 1st ed. (Springer, New York, 2013).

A.H. King and D.A. Smith : On the mechanisms of point-defect absorption by grain and twin boundaries. Philos. Mag. 42, 495 (1980).

J. Burke and D. Stuckey : Dislocation loop-free zones around grain boundaries in quenched aluminium and aluminum alloys. Philos. Mag. 31, 1063 (1975).

B.K. Basu and C. Elbaum : Surface vacancy pits and vacancy diffusion in aluminum. Acta Metall. 13, 1117 (1965).

R.W. Siegel , S.M. Chang , and R.W. Balluffi : Vacancy loss at grain boundaries in quenched polycrystalline gold. Acta Metall. 28, 249 (1979).

C. Jiang , N. Swaminathan , J. Deng , D. Morgan , and I. Szlufarska : Effect of grain boundary stresses on sink strength. Mater. Res. Lett. 2, 100 (2014).

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Materials Research
  • ISSN: 0884-2914
  • EISSN: 2044-5326
  • URL: /core/journals/journal-of-materials-research
Please enter your name
Please enter a valid email address
Who would you like to send this to? *



Full text views

Total number of HTML views: 6
Total number of PDF views: 39 *
Loading metrics...

Abstract views

Total abstract views: 234 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 25th June 2017. This data will be updated every 24 hours.