Effects of coupled detwinning deformation and aging treatment on low-cycle fatigue behavior of AZ80 magnesium alloy
Source abstract
Abstract
: The orientation of precipitates plays a critical role in determining the mechanical behavior of magnesium alloys. This study investigates the influence of precipitate orientation on the low-cycle fatigue deformation behavior of AZ80 alloy under stress-controlled conditions, with a focus on the underlying deformation mechanisms. The results reveal that detwinning treatment converts basal-oriented precipitates into prismatic-oriented ones. During low-cycle fatigue, basal dislocation slip remains the dominant deformation mode. However, prismatic precipitates effectively hinder basal slip and reduce the critical resolved shear stress (CRSS) ratio between non-basal and basal slip systems, thereby promoting the activation of non-basal slip. Moreover, the presence of prismatic precipitates lowers the strain energy density, contributing to improved fatigue performance.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloy Microstructure Properties · Advanced Welding Techniques Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Latest research advances on magnesium and magnesium alloys worldwide10.1016/j.jma.2020.02.003 ↗
2. Chaudry · 2021 · 1
3. Toward the development of Mg alloys with simultaneously improved strength and ductility by refining grain size via the deformation process10.1007/s12613-020-2190-1 ↗
4. Research advances in magnesium and magnesium alloys worldwide in 202010.1016/j.jma.2021.04.001 ↗
5. Recent progress and perspectives in additive manufacturing10.1016/j.jma.2022.03.001 ↗
6. Recent advances in micro-alloyed wrought magnesium alloys: theory and design10.1016/S1003-6326(22)65907-7 ↗
7. Magnesium extrusion alloys: a review of developments and prospects
8. Microstructure, deformation, and property of wrought magnesium alloys10.1007/s11661-020-05974-z ↗
9. Tension-compression asymmetry and the underlying slip twinning activity in extruded Mg-Y sheets10.1016/j.ijplas.2020.102878 ↗
10. Evolution of dislocation and twin densities in a Mg alloy at quasi-static and high strain rates10.1016/j.actamat.2020.09.082 ↗
11. In-situ analysis of the tensile deformation modes and anisotropy of extruded Mg-10Gd-3Y-0.5Zr (Wt.%) at elevated temperatures10.1016/j.ijplas.2016.06.001 ↗
12. In situ analysis of the tensile and tensile-creep deformation mechanisms in rolled AZ3110.1016/j.actamat.2011.10.025 ↗
13. Characteristics of long {10-12} twin bands in sheet rolling of a magnesium alloy10.1016/j.scriptamat.2013.11.008 ↗
14. Deformation and texture evolution in AZ31 magnesium alloy during uniaxial loading10.1016/j.actamat.2005.09.024 ↗
15. Incorporation of solid solution alloying effects into polycrystal modeling of Mg alloys10.1007/s11661-010-0527-5 ↗
16. Precipitation and hardening in magnesium alloys10.1007/s11661-012-1217-2 ↗
17. Effects of precipitate shape and orientation on dispersion strengthening in magnesium alloys10.1016/S1359-6462(02)00497-9 ↗
18. Regulating precipitate orientation in Mg-Al alloys by coupling twinning, aging and detwinning processes10.1016/j.scriptamat.2018.08.049 ↗
19. Evaluating the orientation relationship of prismatic precipitates generated by detwinning in Mg alloys10.1016/j.actamat.2020.05.031 ↗
20. A tailoring precipitate orientation in a rolled AZ80 plate to promote strength-ductility synergy
21. Quantitatively regulated and recognized dual-precipitates of Mg-5Sn alloy through an improved twinning-aging-detwinning and strengthening mechanisms10.1016/j.jma.2025.02.030 ↗
22. Quantitative investigation on the slip/twinning activity and cracking behavior during low-cycle fatigue of an extruded Mg-3Y sheet10.1007/s11661-020-06083-7 ↗
23. Roles of deformation twinning and dislocation slip in the fatigue failure mechanism of AZ31 Mg alloys10.1016/j.scriptamat.2010.03.021 ↗
24. Cyclic deformation and fatigue of extruded Mg-Gd-Y magnesium alloy10.1016/j.msea.2012.10.048 ↗
25. Fatigue damage development in pure polycrystalline magnesium under cyclic tension-compression loading10.1016/j.msea.2011.06.064 ↗
26. LCF and HCF of short carbon fibers reinforced AE42 Mg alloy10.3390/ma16103686 ↗
27. Enhancing the age-hardening response of rolled AZ80 alloy by pre-twinning deformation10.1016/j.msea.2016.10.094 ↗
28. 2002 · vol. 3 · 4
29. Distribution characteristics of In-Grain misorientation axes in cold-rolled commercially pure titanium and their correlation with active slip modes10.1007/s11661-010-0410-4 ↗
30. Crystallographic classification of kink bands in an extruded mg–zn–y alloy using intragranular misorientation axis analysis10.1016/j.actamat.2012.12.026 ↗
31. Texture development and tensile properties of Mg–Yb binary alloys during hot extrusion and subsequent annealing10.1016/j.jma.2021.05.001 ↗
32. L.Y. Zhao, Mechanical behavior and deformation mechanisms of Mg-3Al-1Zn alloy with multimodal texture components, PhD Thesis, Chongqing University.
33. A quantitative study on mechanical behavior of Mg alloys with bimodal texture components10.1016/j.actamat.2021.117013 ↗
34. Effect of precipitate shape and orientation on orowan strengthening of non-basal slip modes in hexagonal crystals, application to magnesium alloys10.1016/j.msea.2016.04.056 ↗
35. Generalized strain energy density-based fatigue indicator parameter10.1016/j.ijmecsci.2023.108427 ↗
36. Low-cycle fatigue characteristics of rolled Mg-3Al-1Zn alloy10.1016/j.ijfatigue.2010.05.002 ↗
37. Multiaxial behaviour of wrought magnesium alloys – a review and suitability of energy-based fatigue life model10.1016/j.tafmec.2014.08.004 ↗
38. The effect of precipitates on low-cycle fatigue behavior of WE54 magnesium alloys under stress-controlled mode10.1016/j.ijfatigue.2023.108061 ↗