Detail publikace
Vliv obsahu hliníku na korozní chování hořčíkových slitin typu AZ
HORYNOVÁ, M. DOLEŽAL, P. ZAPLETAL, J. GEJDOŠ, P. PODRÁBSKÝ, T.
Český název
Vliv obsahu hliníku na korozní chování hořčíkových slitin typu AZ
Anglický název
Influence of aluminium content on corrosion behavior of AZ type magnesium alloy
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
Originální abstrakt
Influence of aluminium content on corrosion behavior of AZ type magnesium alloys was evaluated. Set of samples of magnesium alloys AZ31 (3% Al) and two sets of AZ61 (6% Al) had been exposed to spray of 5% solution of sodium chloride for up to 42 days. In order to observe influence of intermetallic phase on the mechanism of corrosion, one set of AZ61 alloy samples was heat treated prior to corrosion exposure. Optimal conditions for complete dissolution of intermetallic phase were chosen based on heat treatment optimization. Interface between intermetallic phase and solid solution or secondary Al-Mn particles and solid solution served as initiation point for galvanic corrosion. In contrary, comparison of corrosion rate and corrosion mechanism of AZ61 alloy in initial state and after heat treatment showed, that presence of intermetallic phase and Al rich solid solution can act as barrier and slow down corrosion process.
Český abstrakt
Byl hodnocen vliv obsahu hliníku na korozní chování hořčíkových slitin typu AZ. Sada vzorků ze slitiny AZ31(3% Al) a AZ61(6% Al) byla podorbena expozicic v korozní komoře s mlhou 5% NaCl po dobu až 42 dnů. Pro zhodnocení vlivu intermetalika na korozní chování slitin bylo před korozní expozicí u jedné sady vzorků ze slitiny AZ61 provedeno rozpouštěcí žíhání.
Anglický abstrakt
Influence of aluminium content on corrosion behavior of AZ type magnesium alloys was evaluated. Set of samples of magnesium alloys AZ31 (3% Al) and two sets of AZ61 (6% Al) had been exposed to spray of 5% solution of sodium chloride for up to 42 days. In order to observe influence of intermetallic phase on the mechanism of corrosion, one set of AZ61 alloy samples was heat treated prior to corrosion exposure. Optimal conditions for complete dissolution of intermetallic phase were chosen based on heat treatment optimization. Interface between intermetallic phase and solid solution or secondary Al-Mn particles and solid solution served as initiation point for galvanic corrosion. In contrary, comparison of corrosion rate and corrosion mechanism of AZ61 alloy in initial state and after heat treatment showed, that presence of intermetallic phase and Al rich solid solution can act as barrier and slow down corrosion process.
Klíčová slova anglicky
Magnesium alloys, microstructure, corrosion, heat treatment
Rok RIV
2015
Vydáno
28.05.2015
ISBN
978-80-214-5146-9
Kniha
MULTI-SCALE DESIGN OF ADVANCEDMATERIALS-CONFERENCE PROCEEDINGS
Strany od–do
42–47
Počet stran
6
BIBTEX
@inproceedings{BUT115071,
author="Miroslava {Horynová} and Pavel {Doležal} and Josef {Zapletal} and Pavel {Gejdoš} and Tomáš {Podrábský},
title="Influence of aluminium content on corrosion behavior of AZ type magnesium alloy",
booktitle="MULTI-SCALE DESIGN OF ADVANCEDMATERIALS-CONFERENCE PROCEEDINGS",
year="2015",
month="May",
pages="42--47",
isbn="978-80-214-5146-9"
}