
%0 Journal Article
%A Tang, CQ 
%A Yu, LH 
%T Positron Annihilation Study of Deformation in a Two-phase (&#945;+&#946;) Cu&#8211;Zn Alloy
%J Australian Journal of Physics
%D 1996/12/01
%V 49
%N 6
%P 1181-1186
%K 
%R https://doi.org/10.1071/PH961181
%U https://www.publish.csiro.au/paper/PH961181 
%X Positron lifetimes have been measured as a function of the degree of deformation &#949; in a two-phase (&#945;+&#964;) Cu&#8211;Zn alloy. In this alloy the increase of the mean positron lifetime &#964;m with &#949; is slower and the saturation effect occurs at a larger deformation than that in most simple metals and alloys. With increasing &#949; the positron lifetime parameters &#964;1 &#921;1 and &#921;2 exhibit a rise or fall near &#949; &#8776; 4% and 35%, and they change slowly for 4% < &#949; < 35%. These results are explained by the special structure of the &#945; and &#946; phases and the particular deformation mechanism in this alloy. 
