Creep of long-range-ordered Cu50Zn brass Part III. Internal stress in steady-state creep

Internal stress in steady-state creep of long-range-ordered beta'-brass was measured by strain transient dip test technique. Contrary to most of metal lic materials, the internal stress of the alloy does not depend on the appl ied stress at a given temperature. Its value drastically decreases when tem perature increases to the transition temperature to disordered state. The l evel of the internal stress is dominantly influenced by processes which dis order and order structure during slip of superdislocations. The level is pr obably also influenced by diffusion processes.