CORROSION BEHAVIOUR OF AN Al-Zn-Mg-Cu ALLOY AFTER DIFFERENT HEAT TREATMENTS
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The variation of factors such as the amount of alloying elements in solid solution, thermal and
thermo-mechanical treatments changes the corrosion tendency in the Al-Zn-Mg-Cu alloy. The measurements of
electrical conductivity enabled the estimation of the structural state of the alloy, i.e. the type and the degree of
precipitation.The corrosion behaviour was examined through three electrochemical methods(Ecorr., polarization
measurements, EIS).The measurement of corrosion potentials (Ecorr.) gave information about the distribution of
the alloying elements between the solid solution and the precipitation phases. The polarization measurements
have shown a more positive value of pitting potential (Epit.) and a greater resistance to corrosionfor the two-step
aged alloy. The electrochemical impedance spectroscopy (EIS) has also shown that the two-step aged alloy has
better corrosion propertiescompared to the one-step aged alloy.The fracture mechanics (FM) method wasused for
SCC tes...ting and hasshown that the alloy after two-step precipitation hardening is significantly more resistant to
SCC. The obtained results enable a greaterinsight into the effects of both heat treatment and alloying elements,
primarily copper, on the corrosion resistance of the alloy.
Ključne reči:
aluminium alloys / electrochemical methods / fracture mechanics / stress corrosion crackingIzvor:
2nd INTERNATIONAL CONFERENCE Industrial Engineering and Environmental Protection 2012, 2012, 121-128Izdavač:
- Technical faculty Mihajlo Pupin, Zrenjanin, University of Novi Sad, Srbija
Finansiranje / projekti:
- Istraživanje i optimizacija tehnoloških i funkcionalnih performansi ventilacionog mlina termoelektrane Kostolac B (RS-34028)
- Razvoj tehnologije proizvodnje i zavarivanja Al-Mg legura visoke čvrstoće za primenu u konstrukcijama drumskih i železničkih transportnih sredstava (RS-34018)
Institucija/grupa
Inovacioni centarTY - CONF AU - Alil, Ana AU - Jegdić, Bore V. AU - Bobić, Biljana AU - Ristić, Marko PY - 2012 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6102 AB - The variation of factors such as the amount of alloying elements in solid solution, thermal and thermo-mechanical treatments changes the corrosion tendency in the Al-Zn-Mg-Cu alloy. The measurements of electrical conductivity enabled the estimation of the structural state of the alloy, i.e. the type and the degree of precipitation.The corrosion behaviour was examined through three electrochemical methods(Ecorr., polarization measurements, EIS).The measurement of corrosion potentials (Ecorr.) gave information about the distribution of the alloying elements between the solid solution and the precipitation phases. The polarization measurements have shown a more positive value of pitting potential (Epit.) and a greater resistance to corrosionfor the two-step aged alloy. The electrochemical impedance spectroscopy (EIS) has also shown that the two-step aged alloy has better corrosion propertiescompared to the one-step aged alloy.The fracture mechanics (FM) method wasused for SCC testing and hasshown that the alloy after two-step precipitation hardening is significantly more resistant to SCC. The obtained results enable a greaterinsight into the effects of both heat treatment and alloying elements, primarily copper, on the corrosion resistance of the alloy. PB - Technical faculty Mihajlo Pupin, Zrenjanin, University of Novi Sad, Srbija C3 - 2nd INTERNATIONAL CONFERENCE Industrial Engineering and Environmental Protection 2012 T1 - CORROSION BEHAVIOUR OF AN Al-Zn-Mg-Cu ALLOY AFTER DIFFERENT HEAT TREATMENTS EP - 128 SP - 121 UR - https://hdl.handle.net/21.15107/rcub_technorep_6102 ER -
@conference{ author = "Alil, Ana and Jegdić, Bore V. and Bobić, Biljana and Ristić, Marko", year = "2012", abstract = "The variation of factors such as the amount of alloying elements in solid solution, thermal and thermo-mechanical treatments changes the corrosion tendency in the Al-Zn-Mg-Cu alloy. The measurements of electrical conductivity enabled the estimation of the structural state of the alloy, i.e. the type and the degree of precipitation.The corrosion behaviour was examined through three electrochemical methods(Ecorr., polarization measurements, EIS).The measurement of corrosion potentials (Ecorr.) gave information about the distribution of the alloying elements between the solid solution and the precipitation phases. The polarization measurements have shown a more positive value of pitting potential (Epit.) and a greater resistance to corrosionfor the two-step aged alloy. The electrochemical impedance spectroscopy (EIS) has also shown that the two-step aged alloy has better corrosion propertiescompared to the one-step aged alloy.The fracture mechanics (FM) method wasused for SCC testing and hasshown that the alloy after two-step precipitation hardening is significantly more resistant to SCC. The obtained results enable a greaterinsight into the effects of both heat treatment and alloying elements, primarily copper, on the corrosion resistance of the alloy.", publisher = "Technical faculty Mihajlo Pupin, Zrenjanin, University of Novi Sad, Srbija", journal = "2nd INTERNATIONAL CONFERENCE Industrial Engineering and Environmental Protection 2012", title = "CORROSION BEHAVIOUR OF AN Al-Zn-Mg-Cu ALLOY AFTER DIFFERENT HEAT TREATMENTS", pages = "128-121", url = "https://hdl.handle.net/21.15107/rcub_technorep_6102" }
Alil, A., Jegdić, B. V., Bobić, B.,& Ristić, M.. (2012). CORROSION BEHAVIOUR OF AN Al-Zn-Mg-Cu ALLOY AFTER DIFFERENT HEAT TREATMENTS. in 2nd INTERNATIONAL CONFERENCE Industrial Engineering and Environmental Protection 2012 Technical faculty Mihajlo Pupin, Zrenjanin, University of Novi Sad, Srbija., 121-128. https://hdl.handle.net/21.15107/rcub_technorep_6102
Alil A, Jegdić BV, Bobić B, Ristić M. CORROSION BEHAVIOUR OF AN Al-Zn-Mg-Cu ALLOY AFTER DIFFERENT HEAT TREATMENTS. in 2nd INTERNATIONAL CONFERENCE Industrial Engineering and Environmental Protection 2012. 2012;:121-128. https://hdl.handle.net/21.15107/rcub_technorep_6102 .
Alil, Ana, Jegdić, Bore V., Bobić, Biljana, Ristić, Marko, "CORROSION BEHAVIOUR OF AN Al-Zn-Mg-Cu ALLOY AFTER DIFFERENT HEAT TREATMENTS" in 2nd INTERNATIONAL CONFERENCE Industrial Engineering and Environmental Protection 2012 (2012):121-128, https://hdl.handle.net/21.15107/rcub_technorep_6102 .