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Effect of elastic fields of dislocations of the equilibrium configurations of self-interstitial atoms in cubic crystals. Part II. FCC copper crystal

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Conclusion

The results that we have obtained ontthe interaction of an SIA with the elastic fields of dislocations of different types in an fcc copper crystal permit the following conclusions to be made.

The interaction of dislocations with an SIA results in the stabilization of the SIA configurations that are metastable in the absence of elastic fields.

The size of the region of stabilization of the 〈110〉 dumbbell configuration depends weakly on the type of dislocation and is determined by the distance r≈3b.

The distinctive features of the interaction of an SIA with a 60° dislocation enable us to speak of the high mobility of the interstitial atom along the dislocation line.

An edge dislocation, interacting with an SIA, causes the SIA to “hover” as a 〈110〉 dumbbell configuration at a distance r≈3b from the line of the dislocation.

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Additional information

Translated from Atomnaya Énergiya, Vol. 61, No. 6, pp. 428–431, December, 1986.

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Ivanov, V.V., Chernov, V.M. Effect of elastic fields of dislocations of the equilibrium configurations of self-interstitial atoms in cubic crystals. Part II. FCC copper crystal. At Energy 61, 1019–1023 (1986). https://doi.org/10.1007/BF01127268

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Keywords

  • Copper
  • Distinctive Feature
  • High Mobility
  • Edge Dislocation
  • Dislocation Line