journal article·2016-11

Yield symmetry and reduced strength differential in Mg-2.5Y alloy

Dalong Zhang, Haiming Wen, M. Arul Kumar, Fei Chen, Lianmeng Zhang, Irene J. Beyerlein, Julie M. Schoenung, S. Mahajan, Enrique J. Lavernia

Acta Materialia· Volume 120
Publisher page

Abstract

Abstract In this study we report novel results obtained with an extruded fine-grained Mg-2.5 at.% Y alloy (FG Mg-2.5Y) exhibiting tension/compression yield symmetry and reduced strength differential, in addition to well-balanced strength and ductility. On the basis of detailed post-mortem transmission electron microscopy studies, atom probe tomography, and electron back-scattered diffraction (EBSD) characterization, we propose that the presence of a supersaturated solid solution strengthening for basal slip, and the enhanced activity of prismatic slip are the major causes for the unusual mechanical behavior.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · Metal and Thin Film Mechanics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (65)

Show source-provided references
1. The role of twinning and untwinning in yielding behavior in hot-extruded Mg–Al–Zn alloy10.1016/j.actamat.2006.09.010 ↗
2. Texture selection mechanisms in uniaxially extruded magnesium alloys10.1016/j.scriptamat.2010.01.018 ↗
3. Constitutive modeling for anisotropic/asymmetric hardening behavior of magnesium alloy sheets10.1016/j.ijplas.2007.05.004 ↗
4. Twinning and the ductility of magnesium alloys: Part I: “Tension” twins10.1016/j.msea.2006.12.037 ↗
5. Zhang · 2016
6. The texture and anisotropy of magnesium–zinc–rare earth alloy sheets10.1016/j.actamat.2006.11.013 ↗
7. Deformation twinning10.1016/0079-6425(94)00007-7 ↗
8. Influence of twinning deformation and lattice rotation on strength differential effect in polycrystalline pure magnesium with rolling texture10.1016/j.commatsci.2009.09.009 ↗
9. Superior light metals by texture engineering: optimized aluminum and magnesium alloys for automotive applications10.1016/j.actamat.2012.10.044 ↗
10. Effect of rare earth elements on the microstructure and texture development in magnesium–manganese alloys during extrusion10.1016/j.msea.2010.07.081 ↗
11. Texture evolution in equal-channel angular extrusion10.1016/j.pmatsci.2009.01.001 ↗
12. Microstructure and texture evolution of Mg alloys during twin-roll casting and subsequent hot rolling10.1016/j.scriptamat.2009.12.010 ↗
13. Ultra-fine grain size and isotropic very high strength by direct extrusion of chill-cast Mg–Zn–Y alloys containing quasicrystal phase10.1016/j.scriptamat.2010.12.016 ↗
14. Compressive strength and yield asymmetry in extruded Mg–Zn–Ho alloys containing quasicrystal phase10.1016/j.scriptamat.2007.02.015 ↗
15. Sheet texture modification in magnesium-based alloys by selective rare earth alloying10.1016/j.msea.2011.01.080 ↗
16. Effect of plate-shaped particle distributions on the deformation behaviour of magnesium alloy AZ91 in tension and compression10.1016/j.actamat.2011.10.001 ↗
17. Triggering rare earth texture modification in magnesium alloys by addition of zinc and zirconium10.1016/j.actamat.2013.12.015 ↗
18. Effect of precipitate shape on slip and twinning in magnesium alloys10.1016/j.actamat.2010.11.060 ↗
19. Reducing the tension–compression yield asymmetry in a Mg–8Al–0.5Zn alloy via precipitation10.1016/j.scriptamat.2009.11.024 ↗
20. The relation between ductility and stacking fault energies in Mg and Mg–Y alloys10.1016/j.actamat.2012.02.006 ↗
21. Rapid solidification processing with specific application to aluminium alloys10.1179/imr.1992.37.1.1 ↗
22. On the role of non-basal deformation mechanisms for the ductility of Mg and Mg–Y alloys10.1016/j.actamat.2010.08.031 ↗
23. Dynamic recrystallization of Mg and Mg–Y alloys: crystallographic texture development10.1016/j.msea.2007.08.016 ↗
24. Prediction of thermal cross-slip stress in magnesium alloys from a geometric interaction model10.1016/j.actamat.2012.01.004 ↗
25. First-principles data for solid-solution strengthening of magnesium: from geometry and chemistry to properties10.1016/j.actamat.2010.06.045 ↗
26. TEM study on relationship between stacking faults and non-basal dislocations in Mg
27. Prism stacking faults observed contiguous to a {10-12} twin in a Mg–Y alloy10.1016/j.scriptamat.2013.12.015 ↗
28. A thermodynamic description of the Mg–Pr–Y system10.1016/j.calphad.2007.05.007 ↗
29. A thermodynamic description of the Gd–Mg–Y system10.1016/j.calphad.2006.10.004 ↗
30. The rapid solidification processing of materials: science, principles, technology, advances, and applications10.1007/s10853-009-3995-5 ↗
31. Mechanical behavior and strengthening mechanisms in ultrafine grain precipitation-strengthened aluminum alloy10.1016/j.actamat.2013.09.042 ↗
32. Strengthening mechanisms in a high-strength bulk nanostructured Cu–Zn–Al alloy processed via cryomilling and spark plasma sintering10.1016/j.actamat.2012.09.036 ↗
33. Williams · 2009
34. Accommodation and formation of (1121) twins in co single-crystals10.1016/0001-6160(80)90095-4 ↗
35. Dislocation configurations in an extruded ZK60 magnesium alloy10.1007/s11661-008-9621-3 ↗
36. Transmission electron microscopy investigation of < c+a > dislocations in Mg and alpha-solid solution Mg-Li alloys10.1007/s11661-002-0154-x ↗
37. Ductility improvement of Mg alloys by solid solution: ab initio modeling, synthesis and mechanical properties10.1016/j.actamat.2014.02.011 ↗
38. The origin of “rare earth” texture development in extruded Mg-based alloys and its effect on tensile ductility10.1016/j.msea.2008.05.045 ↗
39. Dynamic recrystallization during high temperature deformation of magnesium10.1016/j.msea.2008.02.004 ↗
40. Solute clusters and GP zones in binary Mg–RE alloys10.1016/j.actamat.2015.12.047 ↗
41. Solute clustering and grain boundary segregation in extruded dilute Mg–Gd alloys10.1016/j.scriptamat.2014.08.022 ↗
42. Segregation and clustering of solutes at grain boundaries in Mg–rare earth solid solutions10.1016/j.actamat.2014.06.004 ↗
43. Yield-point phenomena in substitutional alloys10.1179/imr.1970.15.1.101 ↗
44. The influence of calcium and cerium mischmetal on the microstructural evolution of Mg–3Al–1Zn during extrusion and resulting mechanical properties10.1016/j.actamat.2008.02.010 ↗
45. In situ X-ray diffraction and crystal plasticity modeling of the deformation behavior of extruded Mg–Li–(Al) alloys: an uncommon tension–compression asymmetry10.1016/j.actamat.2014.12.003 ↗
46. The crystallography and deformation modes of hexagonal close-packed metals10.1179/imr.1967.12.1.169 ↗
47. The effect of twin–twin interactions on the nucleation and propagation of twinning in magnesium10.1016/j.actamat.2013.02.030 ↗
48. Characterization of planar features in Mg–Y–Zn alloys10.1016/j.actamat.2009.09.025 ↗
49. On the influence of the grain size and solute content on the AE response of magnesium alloys tested in tension and compression10.1016/j.msea.2006.02.470 ↗
50. Effect of rare earth additions on microstructure and texture development of magnesium alloy sheets10.1016/j.scriptamat.2009.12.033 ↗
51. A self-consistent anisotropic approach for the simulation of plastic deformation and texture development of polycrystals: application to zirconium alloys10.1016/0956-7151(93)90130-K ↗
52. Tomé · 2014
53. Creep behavior and deformation microstructures of Mg–Y alloys at 550 K10.1016/S0921-5093(98)00662-5 ↗
54. Influence of grain size on the compressive deformation of wrought Mg–3Al–1Zn10.1016/j.actamat.2004.07.015 ↗
55. Sensitivity of deformation twinning to grain size in titanium and magnesium10.1016/j.actamat.2011.09.018 ↗
56. The nanostructured origin of deformation twinning10.1021/nl203937t ↗
57. Effect of microstructure on the nucleation of deformation twins in polycrystalline high-purity magnesium: a multi-scale modeling study10.1016/j.jmps.2011.02.007 ↗
58. 3-Twinning and its role in wrought magnesium alloys
59. Stochastic modeling of twin nucleation in polycrystals: an application in hexagonal close-packed metals10.1016/j.ijplas.2013.11.005 ↗
60. Yield point elongation due to twinning in a magnesium alloy10.1016/j.actamat.2011.11.022 ↗
61. Meyers · 2009
62. Non-basal slip systems in HCP metals and alloys: source mechanisms10.1016/S0921-5093(01)01027-9 ↗
63. First-principles study of stacking fault energies in Mg-based binary alloys10.1016/j.commatsci.2013.07.012 ↗
64. In situ TEM compression testing of Mg and Mg–0.2 wt.% Ce single crystals10.1016/j.scriptamat.2010.09.047 ↗
65. Reducing deformation anisotropy to achieve ultrahigh strength and ductility in Mg at the nanoscale10.1073/pnas.1306371110 ↗