Effect of volume fraction of LPSO phases on corrosion and mechanical properties of Mg-Zn-Y alloys
Source abstract
Abstract
Microstructural evolution, corrosion behavior and mechanical properties of cast Mg-Zn-Y alloys as a function of volume fraction of long period stacking ordered (LPSO) phases were investigated. Results revealed that 18R-LPSO phase was formed in Mg-0.9%Zn-1.6%Y (ZW12), Mg-2.1%Zn-5.2%Y (ZW25) and Mg-3.1%Zn-7.6%Y (ZW38) alloys. LPSO phases in these alloys acted as micro-cathode to accelerate corrosion progress due to their nobler nature than that of α-Mg matrix. The galvanic-couple effect between LPSO phases and α-Mg matrix dominated the corrosion rate of the cast Mg-Zn-Y alloys in the long-term corrosion process. As a result, ZW12 alloy displayed the best corrosion resistance due to the least volume fraction of micro-cathodes (i.e. LPSO phases). In addition, compared with ZW25 alloy, the compact and thick LPSO phases in ZW38 alloy hindered the corrosion progress to a small degree since it was not preferentially oriented against corrosion front. The shape of corrosion pits was correlated to the shape of Mg dendrites that was a result of the volume fraction and distribution of LPSO phases. LPSO phases could enhance mechanical strength, but the increment was slight when the volume fraction of LPSO phases reached up to 20.3%.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Hydrogen Storage and Materials · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (46)
Show source-provided references
1. Structural aspects of high performance Mg alloys design10.1016/S0921-5093(01)01291-6 ↗
2. A review on casting magnesium alloys: modification of commercial alloys and development of new alloys10.1016/j.jmst.2016.07.001 ↗
3. Effect of twin boundary-dislocation-solute interaction on detwinning in a Mg-3Al-1Zn alloy10.1016/j.jmst.2016.08.023 ↗
4. Microstructural design for enhanced elevated temperature properties in sand-castable magnesium alloys10.1002/adem.200310103 ↗
5. An artificial neural network for predicting corrosion rate and hardness of magnesium alloys10.1016/j.matdes.2015.11.040 ↗
6. Mechanical behavior and microstructure evolution of a rolled magnesium alloy AZ31B under low stress triaxiality10.1016/j.jmst.2016.10.006 ↗
7. Rapidly solidified powder metallurgy Mg97Zn1Y2 alloys with excellent tensile yield strength above 600MPa10.2320/matertrans.42.1172 ↗
8. Long-period ordered structure in a high-strength nanocrystalline Mg-1at%Zn-2at%Y alloy studied by atomic-resolution Z-contrast STEM10.1016/S1359-6454(02)00191-X ↗
9. Elevated temperature Mg97Y2Cu1 alloy with long period ordered structure10.1016/j.scriptamat.2006.05.011 ↗
10. Highly ordered 10H-type long-period stacking order phase in a Mg-Zn-Y ternary alloy10.1016/j.scriptamat.2014.01.013 ↗
11. Polytypes of long-period stacking structures synchronized with chemical order in a dilute Mg-Zn-Y alloy10.1080/09500839.2011.609149 ↗
12. The 18R and 14H long-period stacking ordered structures in Mg-Y-Zn alloys10.1016/j.actamat.2010.01.022 ↗
13. Effects of heat treatments on microstructure and mechanical properties of Mg-11Y-5Gd-2Zn-0.5Zr (wt.%) alloy10.1016/j.jallcom.2010.09.194 ↗
14. Nanoclusters first: a hierarchical phase transformation in a novel Mg alloy10.1038/srep14186 ↗
15. New polytypes of long-period stacking ordered structures in Mg-Co-Y alloys10.1016/j.scriptamat.2012.12.025 ↗
16. Micro-kinking of the long-period stacking/order (LPSO) phase in a hot-extruded Mg97Zn1Y2 alloy10.2320/matertrans.MI201216 ↗
17. High-temperature compressive deformation behavior of Mg97Zn1Y2 extruded alloy containing a long-period stacking ordered (LPSO) phase10.1016/j.msea.2012.09.016 ↗
18. Microstructure and high mechanical properties of Mg-9RY-4Zn (RY: Y-rich misch metal) alloy with long period stacking ordered phase10.1016/j.msea.2012.01.057 ↗
19. Corrosion behavior of Mg-Zn-Y alloy with long-period stacking ordered structures10.1016/S1005-0302(12)60186-8 ↗
20. Relation between corrosion behavior and microstructure of Mg-Zn-Y alloys prepared by rapid solidification at various cooling rates10.1016/j.corsci.2008.11.003 ↗
21. Mg-Zn-Y alloys with long-period stacking ordered structure: in vitro assessments of biodegradation behavior10.1016/j.msec.2013.04.051 ↗
22. Microstructures, mechanical properties and corrosion behaviors of Mg-Y-Zn-Zr alloys with specific Y/Zn mole ratios10.1016/j.jallcom.2014.10.177 ↗
23. Influence of long period stacking ordered phase arrangements on the corrosion behaviour of extruded Mg97Y2Zn1 alloy10.1016/j.corsci.2016.02.024 ↗
24. Microstructures and corrosion behavior of biodegradable Mg-6Gd-xZn-0.4Zr alloys with and without long period stacking ordered structure10.1016/j.corsci.2016.01.004 ↗
25. Microstructure evolution and corrosion properties of Mg-Dy-Zn alloy during cooling after solution treatment10.1016/S1002-0721(16)60117-5 ↗
26. Biocorrosion behavior and cytotoxicity of a Mg-Gd-Zn-Zr alloy with long period stacking ordered structure10.1016/j.matlet.2012.07.030 ↗
27. Uniform corrosion behavior of GZ51K alloy with long period stacking ordered structure for biomedical application10.1016/j.corsci.2014.07.004 ↗
28. Degradation behavior of Mg-based biomaterials containing different long-period stacking ordered phases10.1038/srep03620 ↗
29. Effect of long-period stacking ordered phase on microstructure, mechanical property and corrosion resistance of Mg alloys: a review10.1016/j.pnsc.2016.03.006 ↗
30. An hydrogen evolution method for the estimation of the corrosion rate of magnesium alloys
31. Effect of solution treatment on stress corrosion cracking behavior of an as-forged Mg-Zn-Y-Zr alloy10.1038/srep29471 ↗
32. Effect of heat treatment on the corrosion resistance and mechanical properties of an as-forged Mg-Zn-Y-Zr alloy10.1016/j.corsci.2014.12.008 ↗
33. Influence of pH and chloride ion concentration on the corrosion of Mg alloy ZE4110.1016/j.corsci.2008.08.023 ↗
34. The special role of anodic second phases in the micro-galvanic corrosion of EW75 Mg alloy10.1016/j.electacta.2015.12.075 ↗
35. The anodic dissolution of magnesium in chloride and sulphate solutions10.1016/S0010-938X(97)00090-5 ↗
36. Cao · 2002
37. Corrosion resistance properties of electroless nickel composite coatings10.1016/j.electacta.2004.04.023 ↗
38. Influence of higher Zn/Y ratio on the microstructure and mechanical properties of Mg-Zn-Y-Zr alloys10.1007/s11661-009-9817-1 ↗
39. Database of Raman Spectra
40. Influence of microstructure on the corrosion of die cast AZ91D10.1016/S0010-938X(98)00121-8 ↗
41. Grain character influences on corrosion of ECAPed pure magnesium10.1179/147842209X12559428167805 ↗
42. Effect of corrosion attack on the fatigue behavior of an as-cast Mg-7%Gd-5%Y-1%Nd-0.5%Zr alloy10.1016/j.matdes.2015.06.109 ↗
43. Effect of grain size, texture and density of precipitates on the hardness and tensile yield stress of Mg-14Gd-0.5Zr alloys10.1016/j.matdes.2016.10.074 ↗
44. Ultrahigh strength as-extruded Mg-10.3Zn-6.4Y-0.4Zr-0.5Ca alloy containing W phase10.1016/j.matdes.2016.06.116 ↗
45. Effect of long-period stacking ordered phase on mechanical properties of Mg97Zn1Y2 extruded alloy10.1016/j.actamat.2010.07.050 ↗
46. Strengthening and toughening mechanisms in Mg-Zn-Y alloy with a long period stacking ordered structure10.1016/j.actamat.2010.05.012 ↗