Effects of grain-size gradients on thinning in superplastic gas-blow forming

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This paper shows that the mechanical response of superplastic materials is related to their microstructure and that the use of a microstructural gradient approach can improve the evenness in straining during superplastic gas-blow forming. Finite element simulations of the forming process are carried out to investigate the effect of initial grain-size gradients on the non-uniform thinning of a formed structural component.


Original languageEnglish
Pages (from-to)429-433
Number of pages5
JournalProceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture
Issue number3
Publication statusPublished - 1 Jan 2001


  • material hardening, superplasticity, gas-blow forming, grain growth