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Study of the reversible martensitic transformation in CuZnAl alloy by positron annihilation
Author(s) -
Panek T. J.,
Plotkowski K.
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.2170221128
Subject(s) - alloy , diffusionless transformation , positron annihilation , materials science , martensite , phase (matter) , positron , transformation (genetics) , crystallography , condensed matter physics , metallurgy , microstructure , chemistry , physics , nuclear physics , electron , biochemistry , organic chemistry , gene
The positron lifetime measurement to investigate phase transformations: martensitic phase (MP) ⇔ parent phase (PP) in CuZnAl alloy has been used. We have observed the generation of new defects by MP → PP transformation; these defects are liquidated by martensitic transformation. This effect is only observed in case of high concentration vacancies in alloy. In order to explain the nature of these defects we take into consideration the supervacancies idea.