Research Development of Superplasticity of Wrought Superalloys
In recent years,significant progress has been made in the study of superplasticity in wrought superalloys.The superplastic forming technology provides an ideal forming method for materials that are difficult to deform.Superplastic deformation requires materials to have fine,uniform,and equiaxed grains,and an overview of the preparation methods for fine-grained microstructures of wrought superalloys has been provided.To maximize the advantages of superplasticity,understanding the principles of its micro-deformation is crucial.A summary of the typical models of the micro-regulation mechanism of superplasticity and a discussion on the research of the superplasti c deformation mechanism of wrought superalloys have been conducted.Finally,successful application cases of superplastic technology in superalloys are listed,and prospects for future research directions are provided.
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