Superplasticity Mg Alloy Fabricated by Friction Stir Processing

Shang Xiong Sheng; Yan Li Guo; Shou Fa Liu; Song Lin Wu

doi:10.4028/www.scientific.net/AMR.941-944.93

Paper Titles

Strain Rate Sensitivity and Adiabatic Shear Deformation of an Advanced Al-Mg Alloy
p.72

Comparison of Mechanical Properties of 357-T6 Aluminum Alloy Aast under Gravity Permanent Casting and Low Pressure Die Casting
p.77

Diffusion Bonding of Commercially Pure Titanium to Q235B Using Copper as Interlayer
p.81

Mechanical Properties of A356 Aluminum Cast Alloy Shaped by Permanent Mold Casting
p.89

Superplasticity Mg Alloy Fabricated by Friction Stir Processing
p.93

The Technique Study on Silicon Brass Recrystallization Annealing Aided by Electric Pulse Treatment
p.97

Wettability, Surface Tension and Work of Adhesion of Cu-Ti Alloys on Yttria Partially-Stabilized Zirconia at 1273K
p.102

Combustion Synthesis Sintering of Ni-Al Powder Alloys
p.108

Influence of High Magnetic Field on β-a Phase Transformation in TC4 Titanium Alloy
p.112

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 941-944Superplasticity Mg Alloy Fabricated by Friction...

Superplasticity Mg Alloy Fabricated by Friction Stir Processing

Abstract:

In this research, one solid state processing technique, friction stir processing, is applied to modify the AZ61 magnesium alloy billet. The FSP modified AZ61 alloy could be refined to 3-8 μm via the dynamic recrystallization during processing. The AZ61 magnesium alloy billet with 75μm grain size could be refined to about 7.5μm by four-pass friction stir processing. The hardness of the stirred zone could increase to around 70-80 after friction stir processing, and after a further compressive strain of about 3% could raise the hardness to 81. The ductility of the weld direction specimens of the modified alloy could have a 235% elongation at 300°C and 1x10^-4s^-1. The grain boundary sliding (GBS) might be the dominant deformation mechanism during superplastic deformation.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 941-944)

Pages:

93-96

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.941-944.93

Citation:

Cite this paper

Online since:

June 2014

Authors:

Shang Xiong Sheng, Yan Li Guo, Shou Fa Liu*, Song Lin Wu

Keywords:

Dynamic Recrystallization (DRX), Friction Stir Processing (FSP), Magnesium Alloy

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] R. S. Mishra, M. W. Mahoney and S. X. McFadden. High strain rate superplasticity in a friction stir processed 7075 Al alloy[J]. Scripta Materialia, 1999, 42(2): 163-168.

DOI: 10.1016/s1359-6462(99)00329-2

Google Scholar

[2] C. J. Lee , J. C. Huang. High Strain Rate Superplasticity of Mg Based Composites Fabricated by Friction Stir Processing[J]. Materials Transactions, 2006, 47(11): 2773-2778.

DOI: 10.2320/matertrans.47.2773

Google Scholar

[3] C.J. Lee, J.C. Huang and P.J. Hsieh. Mg based nano-composites fabricated by friction stir processing[J]. Scripta Materialia, 2006, 54: 1415–1420.

DOI: 10.1016/j.scriptamat.2005.11.056

Google Scholar