Accession Number : AD0728655

Title :   Recrystallization of Heterogeneous Al-Cu Alloys (Rekristallizatsiya Geterogennykh Splavov Al-Cu),

Corporate Author : ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA

Personal Author(s) : Polesya,A. F. ; Pasalskii,V. M.

Report Date : 21 JUL 1971

Pagination or Media Count : 12

Abstract : The influence of the type of segregation and degree of their dispersion on the kinetics of recrystallization of the cold rolled alloy A1-4.5 wt percent cu is studied at 330C. In order to produce varying degrees of dispersion of segregations, freshly hardened specimens before cold rolling were annealed for various periods of time at the recrystallization temperature. It was established that the increase in the time of beginning and completion of recrystallization occurs when pre-aged alloys contain plates of the metastable theta prime phase, coherently bonded to the lattice of the matrix. Curves of the change in the period of the crystalline lattice, specific electrical resistance and microhardness of specimens which have undergone various types of heat treatment in the process of recrystallization are produced. The structure of the alloy is studied by an electron microscope method. (Author)

Descriptors :   (*ALUMINUM ALLOYS, *RECRYSTALLIZATION), COPPER ALLOYS, HEAT TREATMENT, USSR

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE