The microstructure and corrosion resistance of as-extruded Mg-6Gd-2Y- (0–1.5) Nd-0.2Zr alloys

Luo, Yaofeng; Deng, Yunlai; Guan, Liqun; Ye, Lingying; Guo, Xiping

doi:10.1016/j.matdes.2019.108289

Cited by 40 publications

(11 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Song 132 stated that the corrosion rate of metals can be correlated with their surface energy to a certain extent, which is associated with the atomic density of a given crystal plane. Numerous studies have corroborated the statement with different conclusions regarding the corrosion behavior of Mg alloys influenced by the differences in grain size 60,106,107,134‐136 . In addition, all the Mg intermetallic phases can be easily found in commercial magnesium alloys as secondary or β‐phase.…”

Section: Current Challenges and Approachesmentioning

confidence: 81%

“…To overcome the corrosion issue, researchers have adopted approaches, such as exploring magnesium alloy 136‐138 and different fabrication techniques to improve the corrosion resistance of anode 60,139 ; scientists also explored various types of corrosion inhibitor, such as organic inhibitor, inorganic inhibitor, and green inhibitor, to pre‐empt the dissolution process of magnesium during self‐discharge and effectively enhance the anode utilization efficiency 140,141 . Comparative comparisons of MAFC performance with the modification of Mg anodes suggest that the use of AZ series Mg alloy with the composition of Al‐Mn‐Zn‐Si confers better erosion resistance than other Mg alloys.…”

Section: Current Challenges and Approachesmentioning

confidence: 99%

See 1 more Smart Citation

Critical review on development of magnesium alloy as anode inMg‐Airfuel cell and additives in electrolyte

et al. 2021

View full text Add to dashboard Cite

Summary This study aimed to provide a critical review of the magnesium‐air fuel cell (MAFC) system to provide readers with an overall comprehension of MAFC, which focuses on the modification of the magnesium anode and properties of saltwater as an electrolyte. Although MAFC is benign to the environment, it is well‐known for its challenging corrosion issue and by‐product deposition that affect its durability for commercialization and long‐term application. Since that MAFC is able to use seawater as electrolyte, it has great potential to be used as an alternative energy option for the marine sector. This journal will dissect the ability of MAFC to be used as a competitive alternative energy. Over the years, researchers have adopted several approaches, such as experimenting with different types of magnesium alloy and anode fabrication techniques, to tackle corrosion problems to alter the microstructure and mechanical properties of the anode in addition to applying a coating protection and using Mg‐based composite material. Furthermore, studies intriguingly and gradually focused on electrolyte formulation with different types of additives to address the debilitating precipitation issue and improve the discharge performance. Given the problems that arise in the system, currently, MAFC commercial products are only suitable as emergency back‐up power. In future work, an improved storage system for MAFC should be built to accommodate the precipitation products while maintaining the desired cell performance.

show abstract

Section: Current Challenges and Approachesmentioning

confidence: 81%

Section: Current Challenges and Approachesmentioning

confidence: 99%

Critical review on development of magnesium alloy as anode inMg‐Airfuel cell and additives in electrolyte

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Texture engineering is an effective method to improve the mechanical properties of magnesium alloys [ 16 ]. This has been achieved through intelligent alloying and/or severe plastic deformation (SPD) programs for many years [ 13 , 17 , 42 , 43 , 44 ]. However, the addition of RE elements effectively weakens the deformation texture, thus improving the formability of the alloy.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Corrosion Performance of Extruded and Forged WE43 Mg Alloy

Liu

Feng

et al. 2022

Materials

View full text Add to dashboard Cite

Adjusting the microstructure through the deformation process is one of the ways to improve the properties of Mg alloys. Most studies have focused on the influence of the microstructure after deformation treatment on the mechanical properties of Mg alloys. In this paper, extruded and forged Mg-Gd-Y-Nd-Zr alloys were selected to investigate the corrosion performance of two deformed magnesium alloys immersed in 0.6 M NaCl solution using a hydrogen evolution test, a weight loss test, an immersion experiment, and an electrochemical test. The results showed that WE43 alloys undergoing different deformation treatments presented different microstructures, which led to different corrosion behaviors and corrosion resistance. The extruded WE43 alloy showed uniform corrosion, while the forged WE43 alloy suffered severe local galvanic corrosion. Meanwhile, the corrosion rate of the forged WE43 alloy was about four times faster than that of the extruded WE43 alloy.

show abstract

“…The samples were ground to 400-grit with SiC paper and then immersed in 5 M HCl solution at 25 °C using a thermostatic water bath for 10 d. The specimens were taken out from corrosion solution after 2 d immersion, cleaned by alcohol and distilled water for 8 min, dried, weighted and finally put in fresh immersion solution again, which was reported by Su et al [15]. The average corrosion rate (CR) was calculated using following formula [16]:…”

Section: Electrochemical Measurements and Static Immersion Testsmentioning

confidence: 99%

Enhanced strength and corrosion resistance in as-cast TA10 alloys via interstitial carbon solute

Yang

Wang

et al. 2022

Mater. Res. Express

View full text Add to dashboard Cite

The addition of interstitial elements often has a significant impact on the macroscopic performances of structural alloys. Here, we report a systematic study on the microstructure, corrosion behavior and mechanical properties of a series of as-cast Ti-0.3Mo-0.8Ni-xC (x = 0.09, 0.12 and 0.15 wt.%) alloys. A typical basket-weave microstructure appears in all specimens, characterized by the lamellar α-phase and intergranular retained β-phase without TiC precipitates existed in prior β grain boundary. Based on the electrochemical and immersion tests, doping with C element can significantly improve the corrosion resistance of TA10 alloys; with increasing the carbon content, the corrosion current density decreases from 13.58 to 3.54 μA·cm-2, the corrosion potential increases from -0.318 to -0.237 V vs. SCE, the corrosion rate reduces from 15 mm/a to 7.5 mm/a, along with an elevated pitting and crevice corrosion resistance. Moreover, the mechanical properties of TA10 alloys, such as the strength and hardness, can also be enhanced via C alloying. Our results indicate that the addition of interstitial elements should be a potential effective mean to accommodate the comprehensive performances of TA10 alloys.

show abstract

The microstructure and corrosion resistance of as-extruded Mg-6Gd-2Y- (0–1.5) Nd-0.2Zr alloys

Cited by 40 publications

References 58 publications

Critical review on development of magnesium alloy as anode inMg‐Airfuel cell and additives in electrolyte

Critical review on development of magnesium alloy as anode inMg‐Airfuel cell and additives in electrolyte

Comparison of Corrosion Performance of Extruded and Forged WE43 Mg Alloy

Enhanced strength and corrosion resistance in as-cast TA10 alloys via interstitial carbon solute

Contact Info

Product

Resources

About