Na2SnO3 functions as outstanding magnesium alloy passivator by synergistic effect with trace carboxymethyl chitosan for Mg-air batteries of standby protection

2022 ◽  
Author(s):  
Liangyuan Chen ◽  
Xiumin Ma ◽  
Zheng Ma ◽  
Dongzhu Lu ◽  
Baorong Hou
Keyword(s):  
Magnesium Alloy ◽  
Synergistic Effect ◽  
Trace Amount ◽  
Carboxymethyl Chitosan ◽  
Electrolyte Additive ◽  
Az61 Alloy ◽  
Sodium Stannate

Different concentrations of sodium stannate (Na2SnO3) (0.2, 0.5, 2.0 and 5.0 mM), as well as their mixture with trace amount of carboxymethyl chitosan (CMCS) (0.1 mM) are selected as electrolyte additive for AZ61 alloy in 3.5 wt.%...

Microstructure and Mechanical Properties of Magnesium Alloy AZ61with 1%Sn Addition

2014 ◽  
Vol 881-883 ◽  
pp. 1396-1399
Author(s):  
Chen Jun ◽  
Quan An Li
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Magnesium Alloy ◽  
Room Temperature ◽  
Az61 Alloy ◽  
Microstructure And Mechanical Properties ◽  
Microstructure Morphology

The microstructure and mechanical properties of magnesium alloy AZ61wtih1% Sn addition has been studied in this paper. The results show that the addition of 1% Sn can refine the grain size and improve the microstructure morphology of β-Mg17Al12 phase. The addition of Sn can cause the formation of Mg2Sn phase in AZ61 alloy, which can effectively enhance the mechanical properties of magnesium alloy AZ61 at room temperature and 150°C.

The effect of sodium stannate as the electrolyte additive on the electrochemical performance of the Mg–8Li–1Y electrode in NaCl solution

RSC Advances ◽  
2014 ◽  
Vol 4 (35) ◽  
pp. 18074-18079 ◽  
Author(s):  
Yan-Zhuo Lv ◽  
Yan-Zhang Jin ◽  
Zhen-Bo Wang ◽  
Yan-Feng Li ◽  
Li Wang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Electrochemical Performance ◽  
Nacl Solution ◽  
Electrolyte Additive ◽  
Sodium Stannate

The Mg–8Li–1Y electrode as the anode of Mg–H2O2 semi-fuel cells with 0.30 mmol L−1 Na2SnO3 additive displays better electrochemical performance than that without Na2SnO3.

Constitutive Model of Thixotropic Plastic Forming for Semi-Solid AZ61 Magnesium Alloy

2006 ◽  
Vol 116-117 ◽  
pp. 639-642 ◽  
Author(s):  
Hong Yan ◽  
Bing Feng Zhou
Keyword(s):  
Magnesium Alloy ◽  
Volume Fraction ◽  
Testing Machine ◽  
Processing Parameters ◽  
Liquid Volume ◽  
Compression Tests ◽  
Liquid Volume Fraction ◽  
Az61 Magnesium Alloy ◽  
Az61 Alloy ◽  
Semi Solid

Uniaxial compression tests on semi-solid AZ61 alloy fabricated by stain-induced activation (SIMA) process and the conventional casts were carried out using the Gleedle-1500 dynamic material testing machine. The relationships between stress and stain were analyzed. The numerical relationships among processing parameters (strain rate z ε& strain z ε temperature T liquid volume fraction L f ) and stress were studied. The proposed constitutive equation was established for semi-solid AZ61 magnesium alloy using the multiple nonlinear regression method. A scientific basic provided for both numerical simulation of processing process of semi- solid AZ61 alloy and rational choice and control of processing parameters.

Influence of Heat Treatment on Low-Cycle Fatigue Behavior of AZ61 Magnesium Alloy

2011 ◽  
Vol 287-290 ◽  
pp. 883-887
Author(s):  
Shu Ying Yin ◽  
Li Jia Chen ◽  
Xin Wang
Keyword(s):  
Solid Solution ◽  
Magnesium Alloy ◽  
Low Cycle Fatigue ◽  
Fatigue Behavior ◽  
Aging Treatment ◽  
Cyclic Stress ◽  
Total Strain ◽  
Cycle Fatigue ◽  
Az61 Magnesium Alloy ◽  
Az61 Alloy

In order to identify the influence of solid solution, aging and solid solution plus aging treatments on the low-cycle fatigue behavior of the extruded AZ61 magnesium alloy, the low-cycle fatigue tests were performed at room temperature for the extruded AZ61 magnesium alloy with different treating states. The results indicate that the cyclic stress response behavior of the extruded AZ61 magnesium alloy exhibits both cyclic strain hardening and stability. The solid solution, aging and solid solution plus aging treatments tend to decrease the cyclic deformation resistance of the extruded AZ61 alloy in most conditions. The solid solution treatment can enhance the fatigue lives of the extruded AZ61 alloy at medium total strain amplitudes. In addition, the aging treatment can prolong the low-cycle fatigue lives of the AZ61 alloy at most total strain amplitudes, while the case for the solid solution plus aging treatment is just contrary. For the extruded AZ61 alloy with different treating states, a linear relationship between cyclic stress amplitude and plastic strain amplitude is noted.

Study on Mechanical Behavior for Warm Extrusion of AZ61 Magnesium Alloy

2008 ◽  
Vol 575-578 ◽  
pp. 222-225
Author(s):  
Xing Zhang ◽  
Zhi Min Zhang ◽  
Bao Cheng Li
Keyword(s):  
Grain Size ◽  
Magnesium Alloy ◽  
Deformation Temperature ◽  
Strain Ratio ◽  
Deformation Condition ◽  
Compression Tests ◽  
Thermal Compression ◽  
Az61 Magnesium Alloy ◽  
Az61 Alloy ◽  
Strain Increase

Thermal compression tests of AZ61 magnesium alloy was performed at deformation temperature 150-400°C and strain rates ranged from 0.01s-1 to 10s-1, and the microstructure were observed for deformation specimens. The result shows that dynamic recrystallization (DRX) was happened under the center warm deformation condition for AZ61 alloy. The values of stress peak decrease when the deformation temperature increase, the grain size grows up at the same time. On the other hand, the critical strain increase and the grain size get smaller with the strain ratio increasing. Therefore temperature and strain ratio can make a great effect on the microstructure and mechanical properties of AZ61 alloy, but temperature is a more important factor.

scholarly journals Study of the Microstructure, Tensile Properties and Hardness of AZ61 Magnesium Alloy Subjected to Severe Plastic Deformation

Metals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 776 ◽  
Author(s):  
Ondřej Hilšer ◽  
Stanislav Rusz ◽  
Pavel Szkandera ◽  
Lubomír Čížek ◽  
Martin Kraus ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Magnesium Alloy ◽  
Tensile Properties ◽  
Tensile Testing ◽  
Electron Backscatter Diffraction ◽  
Processing Route ◽  
Angular Pressing ◽  
Az61 Magnesium Alloy ◽  
Az61 Alloy ◽  
Average Grain Size

Hot extruded (EX) AZ61 magnesium alloy was processed by the twist channel angular pressing (TCAP) method, which combines equal channel angular pressing (ECAP) and twist extrusion (TE) processes and significantly improves the efficiency of the grain refinement process. Both the initial hot extruded AZ61 alloy and the alloy after completion of TCAP processing were examined by using optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electron backscatter diffraction (EBSD) and their corresponding micro-tensile testing (M-TT) and hardness testing at room temperature. The results showed that the microstructure of hot extruded alloy was refined well by TCAP due to dynamic recrystallization (DRX) caused by TCAP. The tensile properties, investigated by micro-tensile testing (M-TT), of the AZ61 alloy were significantly improved due to refined microstructure. The highest tensile properties including YS of 240.8 MPa, UTS of 343.6 MPa and elongation of 21.4% of the fine-grained alloy with average grain size below 1.5 µm was obtained after the third TCAP pass at 200 °C using the processing route Bc.

scholarly journals Stretch Formability of an AZ61 Alloy Plate Prepared by Multi-Pass Friction Stir Processing

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3168
Author(s):  
Xicai Luo ◽  
Haolin Liu ◽  
Limei Kang ◽  
Jielin Lin ◽  
Yifei Liu ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Grain Refinement ◽  
Friction Stir Processing ◽  
Room Temperature ◽  
Applied Load ◽  
Alloy Plate ◽  
Friction Stir ◽  
Az61 Magnesium Alloy ◽  
Az61 Alloy ◽  
Stretch Formability

The stretch formability behavior of an AZ61 magnesium alloy plate produced by multi-pass friction stir processing (M-FSP) was investigated, with the applied load vs. displacement curves recorded during Erichsen cupping tests at different punching speeds at room temperature. The stretch formability of M-FSP AZ61 magnesium alloy was significantly enhanced, compared with that of its cast counterpart. The highest Erichsen index of 3.7 mm was obtained at a punching speed of 0.1 mm/min. The improved stretch formability was mainly attributed to the grain refinement stemming from the M-FSP and the presence of extension twinning to accommodate deformation during Erichsen cupping testing.

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