Novel production for highly formable Mg alloy plate

Y. S. Sato, S. H.C. Park, A. Matsunaga, A. Honda, H. Kokawa

Research output: Contribution to journalArticlepeer-review

124 Citations (Scopus)

Abstract

The principle and advantages of multi-pass friction stir processing (FSP) for the production of a highly formable Mg alloy, and some convincing experimental results are reported in this paper. FSP is a solid state processing technique which involves plunging and traversing a cylindrical rotating FSP tool through the material. FSP achieved grain refinement and homogenization of the as-cast microstructure in Mg alloy AZ91D. Multi-pass FSP produced a fine homogeneous microstructure having a grain size of 2.7 μm throughout the plate. The plate containing this FSPed microstructure exhibited fracture limit major strains six times larger than the diecast plate in the fracture limit diagram (FLD). The present study shows that multi-pass FSP is an efficient production method for a large-scale plate of a highly formable Mg alloy.

Original languageEnglish
Pages (from-to)637-642
Number of pages6
JournalJournal of Materials Science
Volume40
Issue number3
DOIs
Publication statusPublished - 2005 Feb

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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