Effect of Ca on hot tearing susceptibility of WE43 alloy
Source abstract
Abstract
The effect of Ca on the hot tearing susceptibility (HTS) of WE43 alloy was systematically investigated in this study. The results revealed a significant reduction in HTS with the addition of Ca. The tear volume in WE43- xCa alloys ( x = 0, 0.5, 1.0, and 2.0 wt%) was accurately quantified using a Micro-CT system, serving as an indicator for HTS. The lowest HTS was observed in the WE43–2.0Ca alloy, associated with the precipitation of a substantial amount of the Mg 2 Ca phase. The addition of 2.0 wt% Ca significantly promotes the enrichment of rare-earth eutectic and increases the residual liquid eutectic, resulting in complete healing of the hot tear. The highest HTS was observed in the WE43 alloy due to its low residual liquid eutectic fraction and the inevitable presence of Y 2O 3 inclusion. Additionally, Ca alloying refined grain size and reduced the susceptible freezing range of the alloys, which can reduce the shrinkage strain acting on the grain boundary per unit at the hot spot. Furthermore, the study investigated the unique morphology of the second phase flat interfaces in the healing region of WE43–2.0Ca alloy. Two possibilities for forming the flattened interface and its effect on HTS are inferred.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Corrosion Behavior and Inhibition · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (42)
Show source-provided references
1. Research advances of magnesium and magnesium alloys worldwide in 202110.1016/j.jma.2022.04.001 ↗
2. Hot-tearing susceptibility of ternary Mg-Al-Sr alloy castings10.1007/s11661-009-0134-5 ↗
3. Recent developments in high-pressure die-cast magnesium alloys for automotive and future applications10.1016/j.jma.2022.10.001 ↗
4. Recent developments and applications on high-performance cast magnesium rare-earth alloys10.1016/j.jma.2020.06.021 ↗
5. Applications of magnesium alloys for aerospace: a review10.1016/j.jma.2023.09.015 ↗
6. Microstructure, mechanical properties and fracture behaviors of large-scale sand-cast Mg-3Y–2Gd-1Nd-0.4Zr alloy10.1016/j.jma.2021.08.010 ↗
7. Microstructure, mechanical properties and fracture behavior of a new WE43 alloy10.1007/s12598-020-01423-3 ↗
8. Microstructure and mechanical properties of WE43 magnesium alloy fabricated by direct-chill casting10.1016/j.msea.2016.11.009 ↗
9. Achieving high-strength nanocrystalline WE43 Mg alloy by a combination of cold rotary swaging and aging treatment10.1016/j.vacuum.2021.110840 ↗
10. Influences of rod diameter and sand-mould strength on hot tearing in Mg WE43A constrained rod castings
11. Effect of pouring and mold temperatures on hot tearing susceptibility of WE43 magnesium alloy
12. Microstructure, mechanical and creep properties of high Ca/Al ratio Mg-Al-Ca alloy10.1016/j.msea.2016.03.001 ↗
13. Effect of Ca and Sr on microstructure and compressive creep property of Mg-4Al-RE alloys10.1016/j.msea.2014.05.055 ↗
14. Lowering thermal expansion of Mg with the enhanced strength by Ca alloying10.1016/j.jmrt.2023.03.042 ↗
15. Effects of Si content and Ca modification on microstructure and thermal expansion property of Mg–Si alloys10.1016/j.matchemphys.2020.123260 ↗
16. Effect of Ca addition on mechanical properties and the ignition temperature of cast WE43 alloys
17. Flame resistance and oxidation behaviour of Mg-xCa (x=0.3, 1.0, 2.0 and 3.6 wt%) alloys10.1016/j.corsci.2023.111059 ↗
18. Effect of Ca/Al ratio on hot tearing susceptibility of Mg-Al-Ca alloy10.1016/j.jallcom.2022.165113 ↗
19. Hot cracking behavior of Mg-5Al-xCa alloys
20. Effect of Ca/Sr composite addition into AZ91D alloy on hot-crack mechanism10.1016/j.scriptamat.2005.06.039 ↗
21. Improvement of hot tearing resistance of AZ91 alloy with the addition of trace Ca10.3390/ma16103886 ↗
22. Effect of minor Ag and Ce additions on hot tearing susceptibility of Mg-10Gd-3Y-0.5Zr alloy
23. The effect of sr addition on hot tearing susceptibility of Mg-1Ca-xSr alloys10.1007/s11665-021-05925-8 ↗
24. Effect of Sn addition on hot tearing susceptibility of AXJ530 alloy
25. Synchrotron tomographic characterization of damage evolution during aluminum alloy solidification10.1007/s11661-012-1563-0 ↗
26. Revealing hot tear formation dynamics in Al-Cu alloys with X-ray radiography10.1016/j.actamat.2023.119421 ↗
27. Influence of Cu addition on hot tearing susceptibility and fluidity of Al-Li-Cu alloys: experimental investigation, criterion prediction and simulation assessment10.1016/j.jallcom.2023.172301 ↗
28. A review on hot tearing of magnesium alloys10.1016/j.jma.2016.08.003 ↗
29. Achieving fully equiaxed grain microstructure and isotropic mechanical properties in wire arc additive-manufactured Mg-Y-Nd-Zr alloys10.1016/j.jallcom.2023.171041 ↗
30. Micro and macro texture evolution during multiaxial forging of a WE43 magnesium alloy10.1016/j.jallcom.2017.12.181 ↗
31. Microstructure and mechanical properties of a peak-aged Mg-5Y-2.5Nd-1.5Gd-0.5Zr casting alloy10.1016/j.jallcom.2017.09.063 ↗
32. Hot Tearing susceptibility of Mg-Ca binary alloys10.1007/s11661-015-3165-0 ↗
33. Comparison on hot tearing behavior of binary Mg-Al, Mg-Y, Mg-Gd, Mg-Zn, and Mg-Ca alloys10.1007/s11661-022-06719-w ↗
34. Hot tearing susceptibility of binary Mg-Gd alloy castings and influence of grain refinement10.1002/adem.201800139 ↗
35. Influence of Al addition on solidification path and hot tearing susceptibility of Mg-2Zn-(3+0.5x)Y-xAl alloys10.1016/j.jma.2019.04.001 ↗
36. Hot-tear susceptibility of aluminum wrought alloys and the effect of grain refining10.1007/s11661-007-9132-7 ↗
37. Effects of Gd on hot tearing susceptibility of as-cast Mg96.94-Zn1-Y(2-x)-Gdx-Zr0.06 alloys reinforced with LPSO phase10.1016/j.jallcom.2022.166895 ↗
38. Hot tearing susceptibility of binary Mg-Y alloy castings10.1016/j.matdes.2012.12.044 ↗
39. A comprehensive diffusion mobility database comprising 23 elements for magnesium alloys10.1016/j.actamat.2020.09.079 ↗
40. Liquid aluminum: atomic diffusion and viscosity from ab initio molecular dynamics10.1038/srep03135 ↗
41. Y2O3 nanoparticles with 2D morphology as reactive oxygen species scavengers under ultraviolet radiation conditions10.1016/j.matlet.2023.134523 ↗
42. Effect of Y2O3 addition on microstructure and properties of Ti6Al4V by laser melting deposition10.1016/j.msea.2023.145694 ↗