Enhancing strength and creep resistance of Mg–Gd–Y–Zn–Zr alloy by substituting Mn for Zr
Source abstract
Abstract
The age-hardening behavior and mechanical properties of the extruded Mg-2Gd-1.2Y-0.5 Zn (at.%) alloy with Zr or Mn additions were investigated. The results show that Mn added alloy exhibits more remarkable age-hardening response than Zr added alloy, which is attributed to the fact that partitioning of Mn into the β phases, β′ precipitates and long period stacking ordered (LPSO) phases leads to the decrement in (Gd+Y) concentrations in the second phases, facilitating the precipitation during aging treatment. Both peak-aged alloys show bimodal microstructure comprising the fine DRXed grains with nano-sized β phases pinned at DRXed grain boundaries as well as coarse worked grains with strong fiber texture. High strength and good thermal stability were obtained in both peak-aged Mn and Zr added alloys. While the peak-aged Mn added alloy shows higher strength and superior creep resistance due to its denser β′ precipitates, thin LPSO phases and γ′ precipitates and higher area fraction of worked grains with strong fiber texture. The 0.2% tensile proof stress and ultimate tensile strength of peak-aged Mn added alloy reach up to 454 MPa and 508 MPa, respectively, with elongation of 3.2% at room temperature. The minimum creep rate of the peak-aged Mn added alloy at 250°C / 150 MPa is 2.4 × 10−8 s−1, which is superior than previously reported extruded Mg-Gd based alloys.
Source: openalex_inverted_index · Quality: baseline
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 (62)
Show source-provided references
1. Preparation and Characterization of a new biomedical Mg-Zn-Ca alloy10.1016/j.matdes.2011.07.058 ↗
2. Mechanical properties, degradation performance and cytotoxicity of Mg-Zn-Ca biomedical alloys with different composites10.1016/j.msec.2011.07.015 ↗
3. Enhanced mechanical properties in fine-grained Mg-1.0Zn-0.5Ca alloy prepared by extrusion at different temperatures10.1016/j.scriptamat.2010.07.038 ↗
4. Microstructure and mechanical properties of Mg-4.0Zn-0.5Ca alloy10.1016/j.matlet.2008.11.044 ↗
5. Effects of calcium on texture and mechanical properties of hot-extruded Mg-Zn Ca alloys10.1016/j.msea.2012.01.030 ↗
6. Chemistry of nanoscale precipitates in Mg-2.1Gd-0.6Y-0.2Zr (at.%) alloy investigated by the atom probe technique10.1016/j.msea.2004.12.035 ↗
7. Improving creep property of Mg-Gd-Zn alloy via trace Ca addition10.1016/j.scriptamat.2017.06.012 ↗
8. What is going on in magnesium alloys?10.1016/j.jmst.2017.07.019 ↗
9. Ultra high-strength Mg-Gd-Y-Zn-Zr alloy sheets processed by large-strain hot rolling and ageing10.1016/j.msea.2012.03.087 ↗
10. Development of high-strength magnesium alloys via combined processes of extrusion, rolling and ageing10.1016/j.scriptamat.2011.01.042 ↗
11. Effect of Zn additions on the age-hardening of Mg-2.0Gd-1.2Y-0.2Zr alloys10.1016/j.actamat.2007.02.036 ↗
12. Solute segregation and precipitation in a creep-resistant Mg-Gd-Zn alloy10.1016/j.actamat.2008.08.025 ↗
13. Recent developments in high-strength Mg-RE-based alloys: focusing on Mg-Gd and Mg-Y systems10.1016/j.jma.2018.08.001 ↗
14. Abundant long period stacking ordered structure induced by Ni addition into Mg-Gd-Zn alloy10.1016/j.msea.2014.09.015 ↗
15. Microstructure, mechanical and damping properties of Mg-Er-Gd-Zn alloy reinforced with stacking faults10.1016/j.matdes.2015.04.037 ↗
16. Microstructural evolution and mechanical properties of Mg-11Gd-4.5Y-1Nd-1.5Zn-0.5Zr alloy prepared via pre-ageing and hot extrusion10.1016/j.msea.2014.11.061 ↗
17. Precipitation and hardening in magnesium alloys10.1007/s11661-012-1217-2 ↗
18. Effect of Zr on the microstructure, mechanical properties and corrosion resistance of Mg-10Gd-3Y magnesium alloy10.1016/j.msea.2009.06.002 ↗
19. Bimodally grained microstructure development during hot extrusion of Mg–2.4 Zn–0.1 Ag–0.1 Ca–0.16 Zr (at.%) alloys10.1016/j.actamat.2009.07.057 ↗
20. Fabrication of extraordinary high-strength magnesium alloy by hot extrusion10.1016/j.scriptamat.2009.06.003 ↗
21. Effect of ageing treatment on the microstructure, texture and mechanical properties of extruded Mg-8.2Gd-3.8Y-1Zn-0.4Zr (wt%) alloy10.1016/j.msea.2012.11.125 ↗
22. Zr-containing precipitates in Mg-3wt%Nd-0.2wt%Zn-0.4wt%Zr alloy during solution treatment at 540 °C10.4028/www.scientific.net/MSF.546-549.97 ↗
23. Effects of Zr and Mn additions on formation of LPSO structure and dynamic recrystallization behavior of Mg-15Gd-1 Zn alloy10.1016/j.jallcom.2016.09.068 ↗
24. Influence of impurities on damping properties of ZK60 magnesium alloy10.1016/S1003-6326(09)60295-8 ↗
25. A novel approach to melt purification of magnesium alloys10.1016/j.jma.2016.02.003 ↗
26. A review on casting magnesium alloys: modification of commercial alloys and development of new alloys10.1016/j.jmst.2016.07.001 ↗
27. Effect of Mn additions on the corrosion behavior of mould-cast magnesium ASTM AZ9110.5006/1.3583151 ↗
28. Development of extraordinary high-strength Mg-8Al-0.5 Zn alloy via a low temperature and slow speed extrusion10.1016/j.msea.2014.05.058 ↗
29. Effects of Mn addition and X-phase on the microstructure and mechanical properties of high-strength Mg-Zn-Y-Mn alloys10.1016/j.msea.2013.11.043 ↗
30. Structural aspects of high performance Mg alloys design10.1016/S0921-5093(01)01291-6 ↗
31. Effects of Mn addition on the microstructures and mechanical properties of the Mg-15Gd-1 Zn alloy10.1016/j.jallcom.2016.12.165 ↗
32. Precise evaluation of specimen thickness by convergent-beam electron diffraction technique and electron energy-loss spectroscopy10.2320/jinstmet1952.65.5_427 ↗
33. Bimodal microstructure - A feasible strategy for high-strength and ductile metallic materials10.1016/j.jmst.2017.11.018 ↗
34. Plastic deformation behavior of Mg12YZn with 18R long-period stacking ordered structure10.1016/j.intermet.2009.07.014 ↗
35. Effect of long-period stacking ordered phase on mechanical properties of Mg97Zn1Y2 extruded alloy10.1016/j.actamat.2010.07.050 ↗
36. Strengthening and toughening mechanisms in Mg-Zn-Y alloy with a long period stacking ordered structure10.1016/j.actamat.2010.05.012 ↗
37. GdMg5: a complex structure with a large cubic cell10.1107/S0108270186097019 ↗
38. Formation of 14H long period stacking ordered structure and profuse stacking faults in Mg-Zn-Gd alloys during isothermal aging at high temperature10.1016/j.actamat.2007.08.033 ↗
39. Structural changes of precipitates in an Mg-5 at%Gd alloy studied by transmission electron microscopy10.2320/matertrans.48.10 ↗
40. Characterization of β′ precipitate phase in Mg-2 at%Y Alloy aged to peak hardness condition by high-angle annular detector dark-field scanning transmission electron microscopy (HAADF-STEM)10.2320/matertrans.48.84 ↗
41. Structural, elastic and electronic properties of β′ phase precipitate in Mg-Gd alloy system investigated via first-principles calculation10.1016/j.solidstatesciences.2009.08.011 ↗
42. Development of creep resistant Mg-Gd-Sc alloys with low Sc content
43. Mixing enthalpy of liquid phase calculated by miedema's scheme and approximated with sub-regular solution model for assessing forming ability of amorphous and glassy alloys10.1016/j.intermet.2010.06.003 ↗
44. Effects of rare-earth elements Gd and Y on the solid solution strengthening of Mg alloys10.1016/j.jallcom.2009.02.131 ↗
45. Solute clustering and grain boundary segregation in extruded dilute Mg-Gd alloys10.1016/j.scriptamat.2014.08.022 ↗
46. Microstructure and superior mechanical properties of cast Mg-12Gd-2Y-0.5Sm-0.5Sb-0.5Zr alloy10.1016/j.msea.2011.03.049 ↗
47. Novel equilibrium two phase Mg alloy with the long-period ordered structure10.1016/j.scriptamat.2004.06.007 ↗
48. The evolution of internal strain in Mg-Y-Zn alloys with a long period stacking ordered structure10.1016/j.scriptamat.2011.07.017 ↗
49. Enhancement of ductility in high strength Mg-Gd-Y-Zr alloy10.1016/S1003-6326(11)60794-2 ↗
50. Effect of multimodal microstructure evolution on mechanical properties of Mg-Zn-Y extruded alloy10.1016/j.actamat.2011.02.038 ↗
51. Deformation behavior of ultra-strong and ductile Mg-Gd-Y-Zn-Zr Alloy with bimodal microstructure10.1007/s11661-018-4507-5 ↗
52. Effect of LPSO phase-stimulated texture evolution on creep resistance of extruded Mg-Zn-Gd alloys10.2320/matertrans.MI201218 ↗
53. Deformation mechanism and texture and microstructure evolution during high-speed rolling of AZ31B Mg sheets10.1007/s10853-008-3021-3 ↗
54. The evolution of non-basal dislocations as a function of deformation temperature in pure magnesium determined by X-ray diffraction10.1016/j.actamat.2004.02.034 ↗
55. 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 ↗
56. Aging characteristics and high temperature tensile properties of Mg-Gd-Y-Zr alloys10.2320/matertrans.42.1206 ↗
57. Deformation mechanisms and plastic anisotropy in magnesium alloy AZ3110.1016/j.actamat.2011.04.028 ↗
58. Creep and fracture behavior of peak-aged Mg-11Y-5Gd-2Zn-0.5Zr (wtpct)10.1007/s11661-012-1131-7 ↗
59. Tensile creep behavior and microstructure evolution of extruded Mg-10Gd-3Y-0.5Zr (wt%) alloy10.1016/j.msea.2013.04.068 ↗
60. Creep behaviors of hot compressed Mg-4Y-2Nd-0.2Zn-0.5Zr alloy with and without aging10.1016/j.msea.2017.10.014 ↗
61. Creep resistance in magnesium alloys10.1179/095066010X12646898728327 ↗
62. Quantitative evaluation of creep strain distribution in an extruded Mg-Zn-Gd alloy of multimodal microstructure10.1016/j.actamat.2014.08.050 ↗