Effect of Al Content on the Corrosion Behavior of Extruded Dilute Mg–Al–Ca–Mn Alloy

Лиу, Баочанг; Zhang, Shuai; Xiong, Hongwei; Dai, Wenhao; Ma, Yinlong

doi:10.1007/s40195-022-01451-1

Cited by 4 publications

(5 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…the electron wind force, which can be expressed as [41] where e is the charge on an electron, Z * is the effective charge, ρ is the electrical resistivity and J is the current density. When an atom undergoes the transition, the work (Δ W ) done by the electron wind force can be expressed as [42] where b is the Burgers Vector. The electron-atom collisions are inelastic, and part of the kinetic energy is converted into internal energy during the energy transmission, i.e.…”

Section: Discussionmentioning

confidence: 99%

Realising carbide ultrafast homogenisation under pulsed electric current

Hao

Qin

Liu

et al. 2022

Materials Science and Technology

View full text Add to dashboard Cite

Network carbides, as a deleterious precipitate to the mechanical properties of bearing steel, are difficult to eliminate by traditional heat treatment. Here, an innovative strategy to rapidly dissolve network carbides using electric current pulses to improve the uniformity of the microstructure is proposed. The results show that the diffusion driven by electromigration is significantly enhanced compared to traditional heat treatment due to the high-density current on the network carbide surface. Furthermore, grain boundaries as fast diffusion paths play a key role in accelerating the dissolution of network carbides.

show abstract

Section: Discussionmentioning

confidence: 99%

Realising carbide ultrafast homogenisation under pulsed electric current

Hao

Qin

Liu

et al. 2022

Materials Science and Technology

View full text Add to dashboard Cite

show abstract

“…However, extruded Mg alloys are characterized by a strong basal texture, which is coupled with the hexagonal crystal structure of the alloys. According to Jeong et al and Liu et al, the crystal plane orientation and the basal texture of Mg alloys have a great influence on the corrosion behavior [35,41]. The obtained value for the corrosion potential (E corr ) is higher for AX22 (−1475 mV) than for AX32 (−1482 mV), which is assumed to be an effect of the higher Al and Ca content in AX32.…”

Section: Potentiodynamic Polarization Testsmentioning

confidence: 91%

Investigations of Electrochemical Characteristics of Mg-Al-Ca Alloys

Sovík,

Hadzima,

Papenberg

et al. 2023

Crystals

View full text Add to dashboard Cite

Magnesium alloys possess a high strength-to-density ratio, thereby increasingly being utilized as lightweight structural materials in a range of industrial applications. Nevertheless, to compete with established materials like aluminum alloys, it is essential to understand the corrosion behavior of Mg and its alloys, as their high reactivity hampers industrial application. The addition of Ca to wrought Mg-Al alloys has gained attention for its ability to improve mechanical properties while also enhancing processing behavior. However, the wide range of alloy compositions within the class of Mg-Al-Ca alloys results in a variety of different corrosion properties. Consequently, this study contributes by investigating the corrosion behavior of two Mg-Al-Ca alloys, highlighting the influence of chemical composition and microstructure.

show abstract

“…Al elements have excellent solid solution strengthening and precipitation strengthening effects in magnesium alloys [38][39][40]. Al can effectively refine the grain of magnesium alloys [41,42]. Meanwhile, it can combine with magnesium to generate a fine and homogeneous intermetallic phase, Mg 17 Al 12 , which is evenly spread around the grain boundaries network or dissolved inside the grains [43,44].…”

Section: Aluminum (Al)mentioning

confidence: 99%

“…Increasing content has a significant refining effect on the grains of Mg-Al-Ca-Mn alloys (Figure The increase in Al content leads to more second-phase precipitation, which provides hibition of grain growth during dynamic recrystallization. The fine grain structure h more grain boundaries, which can act as barriers to prevent corrosion expansion dur the corrosion process [42]. Table 2 indicates the corrosion currents and potentials in wt.% NaCl solution for A04, A08, and A12.…”

Section: Aluminum (Al)mentioning

confidence: 99%

See 1 more Smart Citation

Corrosion and Protection of Magnesium Alloys: Recent Advances and Future Perspectives

Wu,

Zhang

2023

Coatings

View full text Add to dashboard Cite

Magnesium alloys are of significant importance for lightweight manufacturing and weight-saving applications due to their high weight-to-strength ratio and good mechanical properties. However, the poor corrosion resistance of Mg alloys limits their large-scale practical application. An essential theoretical foundation for the development of corrosion-resistant magnesium alloys and their surface protection technologies can be elucidated via the investigation of the corrosion mechanism of the magnesium surface and the alteration of the corrosion rate after surface conversion and coating. This paper discusses some typical corrosion behaviors by originally describing the corrosion mechanism of magnesium alloys with and without different coatings and surface treatments. In order to predict the future theoretical investigation and research directions for the surface protection of magnesium alloys, some techniques and preventative measures to enhance the corrosion resistance of magnesium alloys are reviewed, and these protection techniques are intercompared for better understanding.

show abstract

Effect of Al Content on the Corrosion Behavior of Extruded Dilute Mg–Al–Ca–Mn Alloy

Cited by 4 publications

References 51 publications

Realising carbide ultrafast homogenisation under pulsed electric current

Realising carbide ultrafast homogenisation under pulsed electric current

Investigations of Electrochemical Characteristics of Mg-Al-Ca Alloys

Corrosion and Protection of Magnesium Alloys: Recent Advances and Future Perspectives

Contact Info

Product

Resources

About