Premium
Positron annihilation in Co alloys containing FCC and HCP phases
Author(s) -
Tshernyashevskii A. V.,
Mikhalenkov V. S.
Publication year - 1987
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170221127
Subject(s) - positron , positron annihilation , materials science , annihilation , diffusionless transformation , stacking , lattice (music) , martensite , crystallography , condensed matter physics , thermodynamics , metallurgy , chemistry , microstructure , nuclear magnetic resonance , nuclear physics , physics , electron , acoustics
Positron annihilation is studied in CoCu and CoMn alloys subjected to the heat treatments which result in the structural states with various lattices, phase contents and defects concentrations. The positrons are shown to be insensitive to the hcp layers in fcc lattice which form the stacking faults. Multiple transitions through the interval of martensitic transformation initiate the formation of defects of the higher concentration the larger of the volume effect of transformation.