Effect of microstructure evolution on corrosion of different crystal surfaces of AZ31 Mg alloy in a chloride containing solution
Source abstract
Abstract
Abstract The crystallographic basal plane dominated rolling surface (RS) of AZ31 Mg alloy has higher corrosion resistance in a chloride containing solution than its prismatic plane dominated cross-section surface (CS). The microstructures of these two surfaces with different crystallographic orientations evolve at 450 °C, resulting in larger grains, less twins, and more Al8Mn5 particles. Among these changes, the precipitated Al8Mn5 intermetallic phase during heat-treatment is responsible for the reduced corrosion resistance of the RS and CS surfaces. The electrochemical galvanic effect of the intermetallic particles suppresses the influence of crystallographic orientation and leads to a diminished difference in corrosion behavior between the RS and CS surfaces.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · Corrosion Behavior and Inhibition
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
Show source-provided references
1. Magnesium and magnesium alloys
2. M.M. Avedesian, H. Baker, ASM Specialty Handbook: Magnesium and Magnesium Alloys, (1999).
3. Recent progress in corrosion and protection of magnesium alloys10.1002/adem.200500013 ↗
4. Corrosion of magnesium10.1179/imr.1993.38.3.138 ↗
5. Corrosion behaviour of magnesium/aluminium alloys in 3.5 wt.% NaCl10.1016/j.corsci.2007.11.005 ↗
6. Atmospheric corrosion of field-exposed magnesium alloy AZ91D10.1016/j.corsci.2007.12.005 ↗
7. Improving corrosion performance of AZ31B Mg alloy sheet by surface polishing
8. Properties and processing of magnesium wrought products for automotive applications10.1002/1527-2648(200112)3:12<969::AID-ADEM969>3.0.CO;2-9 ↗
9. Effect of grain size on mechanical property of Mg-3Al-1Zn alloy10.1016/j.scriptamat.2008.02.029 ↗
10. P.E. Krajewski, S. Kim, J.T. Carter, R. Verma, Magnesium Sheet: Automotive Applications and Future Opportunities, vol. 20, Korean Institute of Metals and Materials: Trends in Metals & Materials Engineering, 2007, pp. 60–68.
11. The surface, microstructure and corrosion of magnesium alloy AZ31 sheet10.1016/j.electacta.2010.02.068 ↗
12. Effect of heat treatment on corrosion and electrochemical behaviour of AZ91D magnesium alloy
13. Effect of heat treatment on anodization and electrochemical behavior of AZ91D magnesium alloy10.1557/JMR.2005.0349 ↗
14. Effect of grain size and twins on corrosion behaviour of AZ31B magnesium alloy10.1016/j.corsci.2009.10.018 ↗
15. The relation between severe plastic deformation microstructure and corrosion behavior of AZ31 magnesium alloy10.1016/j.jallcom.2008.01.084 ↗
16. The relation between microstructure and corrosion behavior of AZ80 Mg alloy following different extrusion temperatures10.1016/j.corsci.2008.03.003 ↗
17. Corrosion of magnesium alloy ZE41 – The role of microstructural features10.1016/j.corsci.2008.11.005 ↗
18. 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 ↗
19. Understanding magnesium corrosion. A framework for improved alloy performance10.1002/adem.200310405 ↗
20. Control of biodegradation of biocompatable magnesium alloys10.1016/j.corsci.2007.01.001 ↗
21. Effect of tin modification on corrosion of AM70 magnesium alloy10.1016/j.corsci.2009.05.031 ↗
22. In situ formation behaviors of Al8Mn5 particles in Mg–Al alloys10.1016/j.jallcom.2005.08.111 ↗
23. H. Baker, ASM Handbook Alloy Phase Diagrams in: ASM Handbook, Alloy Phase Diagrams, ASM International Materials Park, OH, 1990, pp. 2–48.
24. Crystallographic orientation and electrochemical activity of AZ31 Mg alloy10.1016/j.elecom.2010.05.011 ↗
25. Microstructure of polycrystalline Ti and its microelectrochemical properties by means of electron-backscattering diffraction (EBSD)10.1016/S0013-4686(01)00572-2 ↗
26. Calculation of the surface energy of hcp-metals with the empirical electron theory10.1016/j.apsusc.2009.07.034 ↗
27. Influence of dichromate ions on corrosion processes on pure magnesium10.1149/1.1554721 ↗
28. Corrosion behavior and mitigation strategy of magnesium alloys
29. The influence of manganese on the microstructure and mechanical properties of AZ31 gravity die cast alloys10.1016/j.actamat.2006.02.039 ↗
30. The influence of microstructure on the corrosion behaviour of AZ91D studied by scanning Kelvin probe force microscopy and scanning Kelvin probe10.1016/j.corsci.2005.05.008 ↗
31. Influence of chloride ion concentration and temperature on the corrosion of Mg–Al alloys in salt fog10.1016/j.corsci.2010.01.020 ↗
32. Volta potential of second phase particles in extruded AZ80 magnesium alloy10.1016/j.electacta.2005.10.010 ↗
33. Characterization of AA2024–T3 by scanning Kelvin probe force microscopy10.1149/1.1838633 ↗
34. Potential and current distributions of one-dimensional galvanic corrosion systems10.1016/j.corsci.2009.10.003 ↗
35. Galvanic corrosion of magnesium alloy AZ91D in contact with an aluminium alloy, Steel and zinc10.1016/S0010-938X(03)00190-2 ↗
36. The topography of magnetron sputter-deposited Mg–Ti alloy thin films10.1016/j.matchemphys.2010.10.018 ↗