Numéro
J. Phys. Colloques
Volume 47, Numéro C7, Novembre 1986
33rd International Field Emission Symposium / 33ème Symposium International d'Emission de Champ
Page(s) C7-269 - C7-273
DOI https://doi.org/10.1051/jphyscol:1986746
33rd International Field Emission Symposium / 33ème Symposium International d'Emission de Champ

J. Phys. Colloques 47 (1986) C7-269-C7-273

DOI: 10.1051/jphyscol:1986746

THE ENRICHMENT OF Ni AT A DISLOCATION IN Ni-PLATED W

Z.H. LAI1, H. NORDEN2 et H.C. EATON3

1  On leave from Institute of Metal Research, A.S., Shenyang, P.R. China
2  Chalmers University of Technology, S-412 96 Göteborg, Sweden
3  Louisiana State University, Baton Rouge, LA 70803, U.S.A.


Abstract
The enrichment of Ni at a dislocation in Ni treated W has been investigated, using atom probe field-ion microscopy. The extent of the enrichment could be quantified and the results are related to the present model, based on atomistic calculations, of the structure of screw dislocations in b c c metals.