Fracture Failure Analysis of Twin Rolling Casting Magnesium by Hot Compression

Shou Ren Wang; Li Ying Yang; Ru Ma; Pei Quan Guo

doi:10.4028/www.scientific.net/AMR.123-125.547

Paper Titles

Determination of Number of Layers and Stacking Sequence of Composite Bicycle Frame
p.531

Effects of Graphene on a Resin Transfer Molding Process Using Bisphenol A Based Epoxy Resin
p.535

FEM Analysis of 1-3 Cement Based Piezoelectric Composites
p.539

Formation of Resin-Rich Zones in Composites Processing
p.543

Fracture Failure Analysis of Twin Rolling Casting Magnesium by Hot Compression
p.547

Implementation of the Method of Fundamental Solutions and Homotopy Analysis Method for Solving a Torsion Problem of a Rod Made of Functionally Graded Material
p.551

Interacting Crazing Patterns Near the Tip in the Damage Zone of a Crack
p.555

Investigating Particle Effect on Tensile Strength of Particulate Nanocomposites
p.559

New Approach of Multi Scale Modeling Based on the Hygro-Cosserat Theory for Self Desiccation Deformation of Cement Mortars at Early Age
p.563

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 123-125Fracture Failure Analysis of Twin Rolling Casting...

Fracture Failure Analysis of Twin Rolling Casting Magnesium by Hot Compression

Abstract:

The flow stresses of AZ41M and ZK 60 wrought magnesium alloys under the deformation conditions of twin rolling casting and hot compression (TRC-HC) at different temperature and strain rates were studied. The deformation behavior and failure mechanism of them were discussed. The microstructure evolutions were analyzed by OM and EBSD technique. The results indicated that AZ41M and ZK 60 have different strain-stress curve under the same conditions. Working hardening results in occurrence of cracks in or around the shear bands. The recrystallized, equiaxed and fined grains in shear bands attribute to recovery and recrystallization, grains refinement causes local working hardening as well as decreases of crack tip driving forces. The stresses concentrate in shear bands causing cracks initiation and propagation. Casting defects to be the nucleus of cracks is another failure mode. With the increases of strains, dislocations rearrange forming sub-grains, the low angle grain boundaries (LAGBs) continuously evolved into high angle grain boundaries (HAGBs).

You might also be interested in these eBooks

Multi-Functional Materials and Structures III

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 123-125)

Pages:

547-550

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.123-125.547

Citation:

Cite this paper

Online since:

August 2010

Authors:

Shou Ren Wang, Li Ying Yang, Ru Ma, Pei Quan Guo

Keywords:

AZ41M, Failure Mechanism, Hot-Compression, Twin Roll Caster, Wrought Magnesium, ZK 60

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] D. B. Davidson, A. Galiyev, R. Kaibyshev and G. Gottstein, Correlation of plastic deformation and dynamic recrystallization in magnesium alloy ZK60, Acta Mater. Vol. 49(2001), p.1199.

DOI: 10.1016/s1359-6454(01)00020-9

Google Scholar

[2] Z. Zuberova, Y. Estrin, T.T. Lamark, M. Janecek , R.J. Hellmig and M. Krieger, Effect of equal channel angular pressing on the deformation behaviour of magnesium alloy AZ31 under uniaxial compression, J. Mate. Process. Tech. Vol. 184 (2007).

DOI: 10.1016/j.jmatprotec.2006.11.098

Google Scholar

[3] X. Fang, Y. D. Qing, B. Wang, C.P. Wu and H. Zhang, Hot compression deformation behavior of the Mg-Al-Y-Zn magnesium alloy, Rare Metals, vol. 27 (2008), p.121.

DOI: 10.1016/s1001-0521(08)60099-6

Google Scholar

[4] Y. Q. Yang, B. C. Li and Z. M. Zhang, Flow stress of wrought Mg alloys during hot compression deformation at medium and high temperature, Mater. Sci. Eng. A vol. 499 (2009), p.238.

DOI: 10.1016/j.msea.2007.11.106

Google Scholar

[5] M.R. Barnett, Z. Keshavarz, A.G. Beer and D. Atwell, Influence of grain size on the compressive deformation of wrought Mg-3Al-1Zn, Acta Mater. Vol. 52 (2004), p.5093.

DOI: 10.1016/j.actamat.2004.07.015

Google Scholar

[6] S.X. Song, J.A. Horton, N.J. Kim and T.G. Nieh, Deformation behavior of a twin-roll-cast Mg-6Zn- 0. 5Mn-0. 3Cu-0. 02Zr alloy at intermediate temperatures, Scripta Mater. Vol. 56 (2007) , p.393.

DOI: 10.1016/j.scriptamat.2006.10.040

Google Scholar

[7] A. Jain, O. Duygulu and D.W. Brown, Grain size effects on the tensile properties and deformation mechanisms of a magnesium alloy, AZ31B, sheet, Mater. Sci. Eng. A vol. 486 (2008), p.545 (a) (b).

DOI: 10.1016/j.msea.2007.09.069

Google Scholar