Requirements for achieving high-strain-rate superplasticity in cast aluminium alloys

Patrick B. Berbon, Minoru Furukawa, Zenji Horita, Minoru Nemoto, Nikolai K. Taenev, Ruslan Z. Valiev, Terence G. Lanodon

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

Equal-channel angular (ECA) pressing has been used to introduce a very small grain size into a commercial cast Al-Mg-Li-Zr alloy. Tensile testing reveals the potential for achieving sup2erp1lastic ductilities in this alloy at very high strain rates (greater than 10-1s-2) but experiments show that this potential is realized only if a sufficiently high strain is introduced during the ECA pressing such that the microstructure is homogeneous and consists of an array of grains having large-angle grain boundaries.

Original languageEnglish
Pages (from-to)313-316
Number of pages4
JournalPhilosophical Magazine Letters
Volume78
Issue number4
DOIs
Publication statusPublished - Jan 1 1998

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superplasticity
cast alloys
pressing
aluminum alloys
strain rate
requirements
ductility
casts
grain boundaries
grain size
microstructure

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Berbon, P. B., Furukawa, M., Horita, Z., Nemoto, M., Taenev, N. K., Valiev, R. Z., & Lanodon, T. G. (1998). Requirements for achieving high-strain-rate superplasticity in cast aluminium alloys. Philosophical Magazine Letters, 78(4), 313-316. https://doi.org/10.1080/095008398177896

Requirements for achieving high-strain-rate superplasticity in cast aluminium alloys. / Berbon, Patrick B.; Furukawa, Minoru; Horita, Zenji; Nemoto, Minoru; Taenev, Nikolai K.; Valiev, Ruslan Z.; Lanodon, Terence G.

In: Philosophical Magazine Letters, Vol. 78, No. 4, 01.01.1998, p. 313-316.

Research output: Contribution to journalArticle

Berbon, PB, Furukawa, M, Horita, Z, Nemoto, M, Taenev, NK, Valiev, RZ & Lanodon, TG 1998, 'Requirements for achieving high-strain-rate superplasticity in cast aluminium alloys', Philosophical Magazine Letters, vol. 78, no. 4, pp. 313-316. https://doi.org/10.1080/095008398177896
Berbon, Patrick B. ; Furukawa, Minoru ; Horita, Zenji ; Nemoto, Minoru ; Taenev, Nikolai K. ; Valiev, Ruslan Z. ; Lanodon, Terence G. / Requirements for achieving high-strain-rate superplasticity in cast aluminium alloys. In: Philosophical Magazine Letters. 1998 ; Vol. 78, No. 4. pp. 313-316.
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