Effect of Nd on high temperatures deformation and corrosion behavior of AZE Mg alloy
Data files
Mar 13, 2024 version files 8.60 MB
Abstract
An extruded AZE Mg alloy (Mg-3Al-1Zn-0.6Nd) has been developed and prepared to examine the effect of the precipitated phase on corrosion and hot deformation behavior. High-temperature compression experiments show that dynamic recrystallization (DRX) occurs at various experimental parameters (473 to 673 K and 1×10-4 s-1 to 1×10-3 s-1). The deformation mechanism is dominated by dislocation slip and/or twinning. Al11Nd3 precipitates with two different sizes could impede nucleation and the growth of DRXed grains. Serrated flow occurred owing to the interactions between dislocations and precipitates. The corrosion current density decreases with the addition of Nd elements. Moreover, the continuous precipitation of the Al11Nd3 phase at grain boundaries reduces the corrosion rate in NaCl solution, thereby enhancing the corrosion resistance of AZE alloys.
README: Effect of Nd on high temperatures deformation and corrosion behavior of AZE Mg alloy
Wei Qiu., Changsha University of Science and Technology. Ke-di Liu., Changsha University of Science and Technology
https://doi.org/10.5061/dryad.w9ghx3fww
Cite this dateset
https://datadryad.org/stash/share/pmFIEKbdf3CrIsI6DPlodhLw92DIrDAd60-WuYsZjQ4
Datesets included
All empty cells in the table indicate numerous data points here.
Compression curve
- The compression curve data correspond to five tables, 473 K, 523 K, 573 K, 623 K and 673 K, respectively. In the five tables, columns 1 and 2, columns 3 and 4, and columns 5 and 6 correspond to the strain rates of 1×10-4 s-1, 5×10-4 s-1, and 1×10-3 s-1,
- Respectively, where the values of the odd-numbered columns denote the strains of the materials, and the values of the even-numbered columns denote the stresses. The odd-numbered columns of the table were imported into the X-axis data column of Origin software, and the even-numbered columns were imported into the Y-axis data column of Origin software for plotting.
electrochemical
In total, it contains two files of impedance experimental data and two files of polarization curve data.
- There are four tables in the electrochemical test, in the polarization curve data table, the data in the third column represents the voltage/ V, the data in the fourth column represents the corrosion current density/cm2,
- （AZE alloy polarisation curve date）The data in the fourth column of the table corresponds to the X-axis data of the Origin software, and the data in the third column of the table corresponds to the Y-axis data of the Origin software, however, the data in the corrosion current density column needs to take the absolute value before all the polarization curve data are imported.The data can then be plotted
- （AZ31 alloy empedance experimental_date ）The Nyquist curve data corresponds to the expendente experimental data table, the data in the third column corresponds to the X-axis data of Origin software, and the data in the fourth column corresponds to the Y-axis data of Origin software, and the unit is cm2, and then it can be plotted. By importing the polarization curve data into Zinsimple Win software, the average corrosion current density can be obtained.
Sharing/accessing information
Data from the following sources:
- The experimental data were obtained from the electrochemical workstation of the School of Energy and Power Engineering, Changsha University of Technology.
Code/Software
Origin2021 、Zinsimpwin
Methods
The flow curve data were measured in a vacuum high temperature universal tensile compressor, and the compression curves of AZE alloys at five temperatures were tested at three different strain rates; the corrosion performance tests were measured in an electrochemical workstation, and the corrosion current densities and capacitance loops of AZE alloys were measured at a stable operating voltage, respectively.