Analysis reveals thermal cycling alters mechanical properties in titanium alloy-steel bimetals, indicating new welding techniques may enhance durability.
The influence of thermal cycling on the structure and the mechanical properties of welded joints of steel 12X18H10T with titanium alloy VT14, made by diffusion welding under hot isostatic pressing conditions, using intermediate layers of copper and niobium has been studied. Dynamics of development of micro- and macro stratifications in the copper layer and the trends of changes in the fracture nature of samples as a result of the influence of variable stress fields on the bimetal during thermal cycling are shown.
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Medvedev et al. (2021) studied this question.
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