Superplasticity of Mg-Zn-Y Alloy Prepared by Extrusion of Machined Chip

Takaomi Itoi; Syuichi Fudetani; Mitsuji Hirohashi

doi:10.4028/www.scientific.net/MSF.735.259

Paper Titles

Experimental Study of the Mechanical Behavior of Materials under Transient Regimes of Superplastic Deforming
p.232

Finite Element Simulation for Superplastic Blow Forming of Toroidal Ti-6Al-4V Fuel Tank
p.240

A Robust Numerical Method for Validating Mesoscopic Grain Boundary Sliding Controlled Flow Model for Structural Superplasticity
p.246

Low Temperature Superplasticity of Ti-6Al-4V Processed by Warm Multidirectional Forging
p.253

Superplasticity of Mg-Zn-Y Alloy Prepared by Extrusion of Machined Chip
p.259

Effect of Mg Content on High Strain Rate Superplasticity of Al-Mg-Sc-Zr Alloys Subjected to Equal-Channel Angular Pressing
p.265

High Strain Rate Blow Formability of Newly Developed Al-Mg-High-Mn Alloy
p.271

A Numerical Simulation of Superplastic Double-Sided Roll Forming of Discal Parts
p.278

Forging of Articles out of Aluminum Alloys under Superplastic Conditions – Difficulties and Methods of their Overcoming
p.284

HomeMaterials Science ForumMaterials Science Forum Vol. 735Superplasticity of Mg-Zn-Y Alloy Prepared by...

Superplasticity of Mg-Zn-Y Alloy Prepared by Extrusion of Machined Chip

Abstract:

Mg96Zn2Y2 (at.%) extruded alloy was fabricated by hot-extrusion of the Mg96Zn2Y2 machined chip. The Mg96Zn2Y2 extruded alloy consisted of a long period stacking ordered (LPSO)-, Mg3Zn3Y2- and Mg- phases. The Mg phase with mean grain size of 450 nm was confirmed by TEM. However, the LPSO- and Mg3Zn3Y2- phases had relatively large grain size compared with Mg phase. The Mg96Zn2Y2 extruded alloy also showed superplasticity at temperatures of 623 K and 723 K with initial strain rates from 2×10−1 s−1 to 2×10−3 s−1. The maximum elongation of 450 % was achieved at 723 K with an initial strain rate of 2×10−3 s−1. From TEM observation, it is considered that grain boundary sliding of Mg grains was dominant deformation mechanism of the Mg96Zn2Y2 extruded alloy at high temperature range.

You might also be interested in these eBooks

Superplasticity in Advanced Materials - ICSAM 2012

View Preview

Info:

Periodical:

Materials Science Forum (Volume 735)

Pages:

259-264

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.735.259

Citation:

Cite this paper

Online since:

December 2012

Authors:

Takaomi Itoi, Syuichi Fudetani, Mitsuji Hirohashi

Keywords:

Extrusion, Long Period Stacking Ordered Phase, Magnesium Alloy, Microstructure, Superplasticity

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Y. Kawamura, K. Hayashi, A. Inoue, T. Masumoto: Material Trans. 42 (2001), p.1172.

Google Scholar

[2] E. Abe, Y. Kawamura, K. Hayashi, A. Inoue: Acta Materialia. 50 (2002), p.3845.

Google Scholar

[3] E Abe, A. Ono, T. Itoi, M. Yamasaki, Y. Kawamura: Phil. Mag. Lett. 91 (2011), p.690.

Google Scholar

[4] Z. O. Luo, Q. Zhang : Mater. Sci. Lett. 19 (2000), p.813.

Google Scholar

[5] T. Itoi, T. Seimiya, Y. Kawamura, M. Hirohashi: Scripta Materialia 51 (2004), p.107.

DOI: 10.1016/j.scriptamat.2004.04.003

Google Scholar

[6] M. Matsuda, S. Ii, Y. Kawamura, Y. Ikuhara, M. Nishida: Mater. Sci. and Eng. 386 (2004), p.447.

Google Scholar

[7] Y. Kawamura, T. Kasahara, S. Izumi, M. Yamasaki: Scripta Materialia 55 (2006), p.453.

Google Scholar

[8] T. Itoi, K. Takahashi, H. Moriyama, M. Hirohashi: Scripta Materialia 59 (2008), p.1155.

Google Scholar

[9] H. Iwasaki, K. Yanase, T. Mori, M. Mabuchi and K. Higashi:Jpn. Soc. Powder Metall., 43(1996), p.1350.

Google Scholar

[10] K. Nakashima, H. Iwasaki, T. Mori, M. Mabuchi, M. Nakamura and T. Asahina:Mater. Sci. Eng., A293( 2000), p.15.

Google Scholar

[11] M. Mabuchi, K. Kubota and K. Higashi: Mater. Trans., 36 (1995), p.1249.

Google Scholar

[12] U. Draugelates, A. Schram and C.C Kedenburg:Magnesium Alloys and their Applications, Werkstoff-Informations gesellshaft mbH, Ed. By B.L. Mordile and K.U. Kainer. (1998), p.381.

Google Scholar

[13] T.Yamaguch, K. Saitho and Y. Kawamura: Jpn. Inst. Light Metall., 57 (2007), p.287.

Google Scholar