Corrosion influence on surface appearance and microstructure of compo cast ZA27/SiCp composites in sodium chloride solution

Bobić, Biljana; Bajat, Jelena; Bobić, Ilija; Jegdić, Bore

doi:10.1016/S1003-6326(16)64257-7

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2016

Authors

Bobić, Biljana

Bajat, Jelena

Bobić, Ilija

Jegdić, Bore

Article (Published version)

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Abstract

The influence of corrosion on the surface appearance and microstructure of particulate ZA27/SiCp composites was examined after 30 d immersion in a sodium chloride solution with the access of atmospheric oxygen. The composites with different contents of SiC micro-particles were synthesized via compo casting. Microstructural studies by means of optical microscopy (OM) and scanning electron microscopy (SEM) showed that corrosion occurred in the composite matrices, preferentially in regions of the η phase, rich in zinc. The corrosion processes did not affect the silicon carbide particles incorporated in the matrix alloy. According to the results of electrochemical polarization measurements, an increase in the content of SiC particles in the composite matrice has led to the lower corrosion resistance in the composites.

Keywords:

Atmospheric oxygen / Composite matrices / Corrosion / Corrosion rate / Corrosion resistance / Electrochemical corrosion / Electrochemical polarization measurement / Metallic matrix composites / Microstructure / Polarization / Polarization resistances / Scanning electron microscopy / Silicon carbide / Silicon carbide particles / Sodium / Sodium chloride / Sodium chloride solution / Surface appearance / ZA27 alloy / Zinc castings

Source:
Transactions of Nonferrous Metals Society of China (English Edition), 2016, 26, 6, 1512-1521

Publisher:

Elsevier

Funding / projects:

DOI: 10.1016/S1003-6326(16)64257-7

ISSN: 1003-6326

WoS: 000379548800006

Scopus: 2-s2.0-84991707547

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	11
	10

TY  - JOUR
AU  - Bobić, Biljana
AU  - Bajat, Jelena
AU  - Bobić, Ilija
AU  - Jegdić, Bore
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3650
AB  - The influence of corrosion on the surface appearance and microstructure of particulate ZA27/SiCp composites was examined after 30 d immersion in a sodium chloride solution with the access of atmospheric oxygen. The composites with different contents of SiC micro-particles were synthesized via compo casting. Microstructural studies by means of optical microscopy (OM) and scanning electron microscopy (SEM) showed that corrosion occurred in the composite matrices, preferentially in regions of the η phase, rich in zinc. The corrosion processes did not affect the silicon carbide particles incorporated in the matrix alloy. According to the results of electrochemical polarization measurements, an increase in the content of SiC particles in the composite matrice has led to the lower corrosion resistance in the composites.
PB  - Elsevier
T2  - Transactions of Nonferrous Metals Society of China (English Edition)
T1  - Corrosion influence on surface appearance and microstructure of compo cast ZA27/SiCp composites in sodium chloride solution
VL  - 26
IS  - 6
SP  - 1512
EP  - 1521
DO  - 10.1016/S1003-6326(16)64257-7
ER  -

@article{
author = "Bobić, Biljana and Bajat, Jelena and Bobić, Ilija and Jegdić, Bore",
year = "2016",
abstract = "The influence of corrosion on the surface appearance and microstructure of particulate ZA27/SiCp composites was examined after 30 d immersion in a sodium chloride solution with the access of atmospheric oxygen. The composites with different contents of SiC micro-particles were synthesized via compo casting. Microstructural studies by means of optical microscopy (OM) and scanning electron microscopy (SEM) showed that corrosion occurred in the composite matrices, preferentially in regions of the η phase, rich in zinc. The corrosion processes did not affect the silicon carbide particles incorporated in the matrix alloy. According to the results of electrochemical polarization measurements, an increase in the content of SiC particles in the composite matrice has led to the lower corrosion resistance in the composites.",
publisher = "Elsevier",
journal = "Transactions of Nonferrous Metals Society of China (English Edition)",
title = "Corrosion influence on surface appearance and microstructure of compo cast ZA27/SiCp composites in sodium chloride solution",
volume = "26",
number = "6",
pages = "1512-1521",
doi = "10.1016/S1003-6326(16)64257-7"
}

Bobić, B., Bajat, J., Bobić, I.,& Jegdić, B.. (2016). Corrosion influence on surface appearance and microstructure of compo cast ZA27/SiCp composites in sodium chloride solution. in Transactions of Nonferrous Metals Society of China (English Edition)
Elsevier., 26(6), 1512-1521.
https://doi.org/10.1016/S1003-6326(16)64257-7

Bobić B, Bajat J, Bobić I, Jegdić B. Corrosion influence on surface appearance and microstructure of compo cast ZA27/SiCp composites in sodium chloride solution. in Transactions of Nonferrous Metals Society of China (English Edition). 2016;26(6):1512-1521.
doi:10.1016/S1003-6326(16)64257-7 .

Bobić, Biljana, Bajat, Jelena, Bobić, Ilija, Jegdić, Bore, "Corrosion influence on surface appearance and microstructure of compo cast ZA27/SiCp composites in sodium chloride solution" in Transactions of Nonferrous Metals Society of China (English Edition), 26, no. 6 (2016):1512-1521,
https://doi.org/10.1016/S1003-6326(16)64257-7 . .