抄録
A study by means of an X-ray small angle scattering method was carried out on the structure and the growth of Guinier-Preston zones in a binary aluminum-6.8 at% zinc alloy. By the isothermal measurement of scattering intensities of the alloy aged at 40°C, it was found that both models for the structure of G.P. zones proposed by Walker and Guinier and by Gerold and Schweizer were not suitable at the early stages of aging, but that the latter model was suitable at the later stages. Moreover, the mechanism of growth of these zones was indicated to be accordant with the diffusion-controlled Ostwald ripening.
