A critical review of corrosion rate calculations of Mg-Al-Li alloys using traditional mass loss measurements

Anna Dobkowska , Bogusława Adamczyk-Cieślak , Jarosław Mizera

Abstract

The corrosion rate (CR) calculations were performed for AZ31, AZ31-4Li, AZ31-7.5Li and AZ31-15Li Mg alloys after extrusion, and after extrusion with subsequent heat treatment. CR was obtained using three different mass loss (ML) measurements: i) traditional ML measurements where weighing before and after immersion was being implied, ii) by atomic absorption spectroscopy, where number of Mg2+ ions were calculated from the solution after immersion, and iii) by ML measurements in an artificial atmosphere. As results show, there are many differences in CR results obtained by these techniques. When CR is being calculated for multi-alloy-ing materials, all possible anodic reactions which can take place during dissolution of immersed samples in the solution, should be considered.

Author Anna Dobkowska (FMSE / DMD)
Anna Dobkowska,,
- Division of Materials Design
, Bogusława Adamczyk-Cieślak (FMSE / DMD)
Bogusława Adamczyk-Cieślak,,
- Division of Materials Design
, Jarosław Mizera (FMSE / DMD)
Jarosław Mizera,,
- Division of Materials Design
Other language title versionsOcena metod pomiaru szybkości korozji w zastosowaniu dla wieloskładnikowych stopów lekkich na przykładzie Mg-Al-Li
Journal seriesOchrona przed Korozją, [Ochrona przed Korozją], ISSN 0473-7733, e-ISSN 2449-9501
Issue year2020
Vol63
No2
Pages38-41
Publication size in sheets0.5
Keywords in Polishszybkość korozji, grawimetryczne pomiary ubytku masy, stopy magnez - lit
Keywords in Englishcorrosion rate, mass loss measurements, magnesium – lithium alloys
DOIDOI:10.15199/40.2020.2.1
Languageen angielski
File
A critical review of corrosion rate calculations of Mg-Al-Li alloys.pdf 1.03 MB
Score (nominal)20
Score sourcejournalList
ScoreMinisterial score = 20.0, 17-07-2020, ArticleFromJournal
Publication indicators Scopus Citations = 0; WoS Citations = 0
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