Superplasticity and cavitation of recycled AZ31 magnesium alloy fabricated by solid recycling process

Chino, Yasumasa, Kishihara, Ryuji, Shimojima, Koji, Hosokawa, Hiroyuki, Yamada, Yasuo, Wen, Cui`e, Iwasaki, Hajimc and Mabuchi, Mamoru 2002, Superplasticity and cavitation of recycled AZ31 magnesium alloy fabricated by solid recycling process, Materials transactions, vol. 43, no. 10, pp. 2437-2442.

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Title Superplasticity and cavitation of recycled AZ31 magnesium alloy fabricated by solid recycling process
Author(s) Chino, Yasumasa
Kishihara, Ryuji
Shimojima, Koji
Hosokawa, Hiroyuki
Yamada, Yasuo
Wen, Cui`e
Iwasaki, Hajimc
Mabuchi, Mamoru
Journal name Materials transactions
Volume number 43
Issue number 10
Start page 2437
End page 2442
Publisher Japan Institute of Metals
Place of publication Sendai, Japan
Publication date 2002
ISSN 1345-9678
1347-5320
Keyword(s) magesium allow
superplasticity
solid recycling process
hot extrusion
grain refinement
grain boundary sliding
blow forming
rectangular pan
Summary Superplastic behaviour of Mg-alloy AZ31 was investigated to clarify the possibility of its use for superplastic forming (SPF) and to accurately evaluate material characteristics under a biaxial stress by utilizing a multi-dome test. The material characteristics were evaluated under three different superplastic temperatures , 643, 673, and 703 K in order to determine the most suitable superplastic temperature. Finite Element Method (FEM) simulation of rectangular pan forming was carried out to predict the formability of the material into a complex shape. The superplastic material properties are used for the simulation of a rectangular pan. Finally, the simulation results are compared with the experimental results to determine the accuracy of the superplastic material characteristics. The experimental results revealed that the m values are greater than 0.3 under the three superplastic temperatures, which is indicative of superplasticity. The optimum superplastic temperature is 673 K, at which a maximum m value and no grain growth were observed. The results of the FEM simulation revealed that certain localized thinning occurred at the die entrance of the deformed rectangular pan due to the insufficient ductility of the material. The simulation results also showed that the optimum superplastic temperature of AZ31 is 673 K.
Notes Special issue on plasticity and its applications.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2002, The Japan Institute of Metals
Persistent URL http://hdl.handle.net/10536/DRO/DU:30006634

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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