An Investigation on Formability and Crystallographic Texture in Novel Magnesium Alloys

Subject Areas :

Pnina Ari-Gur ¹ , Andreas Quojo Quainoo ² , Shubram Subramanyam ³ , Ashkan Razania ⁴ , Sven C. Vogel ⁵ , Wei Gao ⁶

1 - Department of Mechanical and Aerospace Engineering, Western Michigan University, Kalamazoo, MI 49008, USA
2 - Department of Mechanical and Aerospace Engineering, Western Michigan University, Kalamazoo, MI 49008, USA
3 - Department of Mechanical and Aerospace Engineering, Western Michigan University, Kalamazoo, MI 49008, USA
4 - Department of Mechanical and Aerospace Engineering, Western Michigan University, Kalamazoo, MI 49008, USA
5 - Materials Science and Technical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
6 - Department of Chemical and Materials Engineering, Faculty of Engineering, The University of Auckland, Auckland 1010, New Zealand

Received: 2021-09-09 Accepted : 2021-10-12 Published : 2021-08-01

Keywords: Formability, texture, Crystallographic, Magnesium Alloys,

Abstract :

Magnesium alloys offer many advantages. They offer the very low density and good strength. They also offer good damping properties. One of the industries where reducing component weight in the automotive industry. That makes the magnesium alloys good candidates for these applications. Reduced weight of an automobile means also lower fuel consumption. The hexagonal closed packed structure of magnesium lends itself to strong mechanical anisotropy. In the current work, neutron diffraction was used to study the crystallographic texture developed in novel magnesium alloys during cold rolling operations. The texture was compared with that developed in the commercial AZ-31 magnesium alloy. Tests were run at the High-Pressure-Preferred-Orientation (HIPPO) beamline at Los Alamos National Lab. The texture was then analyzed using pole figures, created using the Material Analysis Using Diffraction (MAUD) software.

References:

[1] Hu, X. S., Wang, X. J., He, X. D., Wu, K. and Zheng, M. Y. 2012. Low frequency damping capacities of commercial pure magnesium. Transactions of Nonferrous Metals Society of China. 22(8):1907-1911.

[2] Suzuki, K., Chino, Y., Huang, X. and Mabuchi, M. 2011. Elastic and Damping Properties of AZ 31 Magnesium Alloy Sheet Processed by High-Temperature Rolling. Materials Transactions. 52(11):2040-2044.

[3] Al-Samman, T. and Gottstein, G. 2008. Room temperature formability of a magnesium AZ31 alloy: Examining the role of texture on the deformation mechanisms. Materials Science and Engineering: A. 488(1): 406-414.

[4] Barnett, M. R., Jacob, S., Gerard, B. F. and Mullins, J. G. 2008. Necking and failure at low strains in a coarse-grained wrought Mg alloy. Scripta Materialia. 59(10):1035-1038.

[5] Honeycombe, R.W.K. The plastic deformation of metals. Second Edition. 1984. London: Edward Arnold.

[6] Rosi, F. D., Dube, C. A. and Alexander, B. H. 1953. Mechanism of plastic flow in titanium-determination of slip and twinning elements. Journal of Metals. 5(2):257-264.

[7] Gao, W. and Liu, H. 2009. A highly ductile magnesium alloy system. In IOP Conference Series: Materials Science and Engineering. 4(1):012003.

[8] Wenk, H., Lutterotti, L. and Vogel, S. 2010. Rietveld texture analysis from TOF neutron diffraction   data. Powder Diffraction. 25(3):283-296.

[9] Wang,Y.N. and Huang, J.C. 2003. Texture analysis in hexagonal materials. Materials Chemistry and Physics 81:11–26.

[10] Wei, S., Zhu, T. and Hodgson Gao, W. 2013. Effects of Sn addition on the microstructure and mechanical properties of as-cast, rolled and annealed Mg–4Zn alloys. Materials Science and Engineering, A. 585:139-148.