Regulating solute partitioning utilized to decorate grain boundary for improving corrosion resistance in a model Al-Cu-Mg alloy

Type Al-Zn-Mg alloy has a wide ranges of application in vehicles, but corrosion resistance and mechanical properties of this alloy after heat treatment or heat straightening limits its utilization. This paper investigates the effect of quenching condition during non-isothermal heat treatment on corrosion behavior and mechanical properties of Al-Zn-Mg alloy. The corrosion resistance of Al-Zn-Mg alloy decreases after non-isothermal heat treatment and the sample after air quenching has the lowest corrosion resistance, the specimens can get better corrosion resistance when suffered 5 min air cooling followed by water quenching process. The evolution of mechanical properties and corrosion resistance of heat-treated specimens is caused by the modification of distribution of precipitates at grain boundary and the microchemistry of precipitates at grain boundary, precipitate-free zones and the matrix.

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Grain boundary pre-precipitation and its contribution to enhancement of corrosion resistance of Al–Zn–Mg alloy

Transactions of Nonferrous Metals Society of China ◽

10.1016/s1003-6326(16)64378-9 ◽

2016 ◽

Vol 26 (10) ◽

pp. 2523-2531 ◽

Cited By ~ 7

Author(s):

Hui-zhong LI ◽

San-cheng YAO ◽

Xiao-peng LIANG ◽

Yong-hui CHEN ◽

Chao LIU ◽

...

Keyword(s):

Corrosion Resistance ◽

Grain Boundary ◽

Mg Alloy

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Influence of Microstructure Heterogeneity on the Corrosion Resistance and Microhardness of 5052 Al-Mg Alloy

JOM ◽

10.1007/s11837-020-04364-5 ◽

2020 ◽

Vol 72 (12) ◽

pp. 4305-4314

Author(s):

Peng Zhou ◽

Lei Deng ◽

Peng Guo ◽

Wei Rao ◽

Xinyun Wang ◽

...

Keyword(s):

Corrosion Resistance ◽

Mg Alloy

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Significantly enhanced grain boundary Zn and Ca co-segregation of dilute Mg alloy via trace Sm addition

Materials Science and Engineering A ◽

10.1016/j.msea.2021.142259 ◽

2021 ◽

pp. 142259

Author(s):

Zhi Zhang ◽

Jinghuai Zhang ◽

Jinshu Xie ◽

Shujuan Liu ◽

Yuying He ◽

...

Keyword(s):

Grain Boundary ◽

Mg Alloy

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Optimization of plasma electrolyte oxidation process parameters for corrosion resistance of Mg alloy

Journal of Magnesium and Alloys ◽

10.1016/j.jma.2018.10.001 ◽

2020 ◽

Vol 8 (2) ◽

pp. 431-440 ◽

Cited By ~ 2

Author(s):

Z. Shahri ◽

S.R. Allahkaram ◽

R. Soltani ◽

H. Jafari

Keyword(s):

Corrosion Resistance ◽

Process Parameters ◽

Oxidation Process ◽

Mg Alloy ◽

Plasma Electrolyte ◽

Plasma Electrolyte Oxidation ◽

Electrolyte Oxidation

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Tribological and corrosion resistance properties of graphite composite coating on AZ31 Mg alloy surface produced by plasma electrolytic oxidation

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2018.12.073 ◽

2019 ◽

Vol 359 ◽

pp. 197-205 ◽

Cited By ~ 10

Author(s):

Guo Peitao ◽

Tang Mingyang ◽

Zhang Chaoyang

Keyword(s):

Corrosion Resistance ◽

Composite Coating ◽

Plasma Electrolytic Oxidation ◽

Mg Alloy ◽

Alloy Surface ◽

Graphite Composite ◽

Az31 Mg Alloy ◽

Electrolytic Oxidation ◽

Plasma Electrolytic

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Corrosion resistance investigation of nanostructured Si- and Si/TiO2-coated Mg alloy in 3.5% NaCl solution

Vacuum ◽

10.1016/j.vacuum.2014.05.020 ◽

2014 ◽

Vol 108 ◽

pp. 61-65 ◽

Cited By ~ 23

Author(s):

M. Daroonparvar ◽

M.A.M. Yajid ◽

H.R. Bakhsheshi-Rad ◽

N.M. Yusof ◽

S. Izman ◽

...

Keyword(s):

Corrosion Resistance ◽

Mg Alloy ◽

Nacl Solution ◽

Nanostructured Si

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Influence of Sc Addition on the Corrosion Behavior of Medium Strength Al-Zn-Mg Alloy

Materials Science Forum ◽

10.4028/www.scientific.net/msf.913.439 ◽

2018 ◽

Vol 913 ◽

pp. 439-444 ◽

Cited By ~ 1

Author(s):

Zhao Ming Li ◽

Hai Chang Jiang ◽

Yun Li Wang ◽

Duo Zhang ◽

De Sheng Yan ◽

...

Keyword(s):

Weight Loss ◽

Corrosion Resistance ◽

Corrosion Behavior ◽

Intergranular Corrosion ◽

Relative Weight ◽

Mg Alloy ◽

Exfoliation Corrosion ◽

Medium Strength ◽

Relative Weight Loss ◽

Sc Addition

In this paper, the effect of Sc addition (0.06 wt%) on the corrosion behavior of medium strength Al-Zn-Mg alloy is investigated by mass loss measurements, electrochemical experiment, intergranular corrosion and exfoliation corrosion tests. The results indicate the addition of Sc reduces the relative weight loss and enhances pitting performance as a result of grain refinement. The improved intergranular corrosion and exfoliation corrosion resistance caused by minor Sc addition are mainly attributed to the delay in both the initiation and advance stages of local corrosion.

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