Effect of texture on fracture limit strain in friction stir processed AZ31B Mg alloy

Yutaka Sato, Akihiro Sugimoto, Hiroyuki Kokawa, Chang Woo Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Mg alloy has poor ductility and formability at room temperature because of lack of the active slip systems. Recently, it has been reported that the grain refinement improves its ductility, thus it would be expected that friction stir processing (FSP) enhances the formability of Mg alloys because FSP can create homogeneous microstructure consisting of fine grains. However, FSP leads to not only the grain refinement, but also the strong accumulation of crystallographic texture in Mg alloy. It is likely that the texture formed during FSP also affects the formability significantly in Mg alloy, but effect of texture on formability in FSPed Mg alloy has not been examined yet. In this study, FSP was applied to AZ31B Mg alloy at several FSP parameters and the stir zones having the different microstructural features were obtained. Effect of microstructure, especially grain size and texture, on fracture limit major strain under the uniaxial tension was examined in the stir zone of the FSPed AZ31B Mg alloy, and the microstructural features for the formability enhancement in Mg alloy were proposed.

Original languageEnglish
Title of host publicationMaterials Processing and Texture - A Collection of Papers Presented at the 15th International Conference on Textures of Materials, ICOTOM 15
Pages43-52
Number of pages10
Publication statusPublished - 2008 Dec 22
EventMaterials Processing and Texture - 15th International Conference on Textures of Materials, ICOTOM 15 - Pittsburgh, PA, United States
Duration: 2008 Jun 12008 Jun 6

Publication series

NameCeramic Transactions
Volume200
ISSN (Print)1042-1122

Other

OtherMaterials Processing and Texture - 15th International Conference on Textures of Materials, ICOTOM 15
CountryUnited States
CityPittsburgh, PA
Period08/6/108/6/6

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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    Sato, Y., Sugimoto, A., Kokawa, H., & Lee, C. W. (2008). Effect of texture on fracture limit strain in friction stir processed AZ31B Mg alloy. In Materials Processing and Texture - A Collection of Papers Presented at the 15th International Conference on Textures of Materials, ICOTOM 15 (pp. 43-52). (Ceramic Transactions; Vol. 200).