Abstract
The ability of metallic materials to deform by hundreds or even thousand of percent, with a substantial drop in resistance to deformation is known as the superplasticity effect. Here the titanium allow VT-9 (as received rod of diameter 16 mm) under pure tension is used as an example to show that the defining equations proposed for the description of creep and creep-rupture strength at a moderate temperature can be extended to the range of temperatures close to superplasticity, T > 0.6T{sup pl}. The defining equations used have one scalar damageability parameter, which is found by means of the quantities {omega} = {epsilon}/{epsilon}{sub *} ({epsilon} are instantaneous strains and {epsilon}{sub *} are breaking strains). A method is given for determining the parameters of the creep and damageability equations with allowance for tertiary creep over wide ranges of temperature and force.
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