Evolution of Corrosion Resistance in the LAE442 Magnesium Alloy Processed by ECAP

• Authors: P. Minárik , R. Král , M. Janeček , F. Chmelík , B. Hadzima
• Languages of publication: EN

Abstracts

EN

The influence of processing by equal channel angular pressing on the corrosion resistance was investigated in the extruded LAE442 magnesium alloy by the linear polarization method. Continuous increase of the corrosion resistance with the increasing number of passes was measured. The polarization resistance of the 12P sample was substantially higher as compared to the extruded state. The results were discussed in terms of the corrosion layers formed on the surface after seven days of immersion. It was concluded that the substantial increase of polarization resistance was caused by the combined effect of grain refinement and aluminum and lithium oxides formation within the corrosion layer.

Keywords

EN

81.05.-t; 82.45.Bb

Discipline

• 82.45.Bb: Corrosion and passivation(see also 81.65.Kn Corrosion protection and 81.65.Rv Passivation in surface treatments)
• 81.05.-t: Specific materials: fabrication, treatment, testing, and analysis(for superconducting materials, see 74.70.-b, and 74.72.-h; for magnetic materials, see 75.50.-y; for optical materials, see 42.70.-a; for dielectric materials, see 77.84.-s; for disperse systems and complex fluids, see 82.70.-y; see also 82.75.-z Molecular sieves, zeolites, clathrates, and other complex solids; for materials properties, see sections 60 and 70)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 4
• Pages: 772-774

Dates

published

2015-10

Contributors

author

P. Minárik

• Charles University in Prague, Department of Physics of Materials, Ke Karlovu 5, CZ-12116 Prague 2, Czech Republic

author

R. Král

• Charles University in Prague, Department of Physics of Materials, Ke Karlovu 5, CZ-12116 Prague 2, Czech Republic

author

M. Janeček

• Charles University in Prague, Department of Physics of Materials, Ke Karlovu 5, CZ-12116 Prague 2, Czech Republic

author

F. Chmelík

• Charles University in Prague, Department of Physics of Materials, Ke Karlovu 5, CZ-12116 Prague 2, Czech Republic

author

B. Hadzima

• Research Center of the University of Žilina, Žilina, Slovak Republic and Faculty of Mechanical Engineering, University of Žilina, Žilina, Slovak Republic

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Identifiers

DOI

10.12693/APhysPolA.128.772