Significance of Microstructural Control for Superplastic Deformation and Forming

Yan Ma, Minoru Furukawa, Zenji Horita, Minoru Nemoto, Ruslan Z. Valiev, Terence G. Langdon

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Abstract

High tensile ductility may be achieved in metallic alloys over a limited range of strain rates at elevated temperatures when the grain size is very small (typically less than -10 μm). These superplastic materials are often suitable for industrial forming operations. This paper considers the possibility of attaining a superplastic forming capability at lower temperatures and/or faster strain rates by a reduction of the grain size into the submicrometer range. Procedures are available for the fabrication of ultrafine-grained materials by imposing a very high plastic strain. These procedures are examined with reference to results obtained using Al-Mg solid solution alloys.

Original languageEnglish
Pages (from-to)336-339
Number of pages4
JournalMaterials Transactions, JIM
Volume37
Issue number3
DOIs
Publication statusPublished - Jan 1 1996

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Ma, Y., Furukawa, M., Horita, Z., Nemoto, M., Valiev, R. Z., & Langdon, T. G. (1996). Significance of Microstructural Control for Superplastic Deformation and Forming. Materials Transactions, JIM, 37(3), 336-339. https://doi.org/10.2320/matertrans1989.37.336