Influence of Microstructural Parameters on the Corrosion Resistance of 7075 Aluminum Alloy

The aim of this analysis was to identify the cause of poor corrosion resistance of final product, after the slight change of heat treatment of initial material. Although the hardness of material prior and after the change was the same, significant difference in microstructure was revealed by microst...

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Bibliographic Details
Published inMaterials Science Forum Vol. 891; pp. 303 - 307
Main Authors Horynova, Miroslava, Klakurkova, Lenka, Julis, Martin, Gejdos, Pavel, Celko, Ladislav
Format Journal Article
LanguageEnglish
Published Pfaffikon Trans Tech Publications Ltd 22.03.2017
Subjects
Alloys
Aluminum alloys
Corrosion resistance
Deterioration
Heat treatment
Inspection
Materials science
Microstructural analysis
Microstructure
Precipitates
Precipitation
Aluminium Alloy
Heterogeneity
Corrosion Resistance
Heat Treatment
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Summary:The aim of this analysis was to identify the cause of poor corrosion resistance of final product, after the slight change of heat treatment of initial material. Although the hardness of material prior and after the change was the same, significant difference in microstructure was revealed by microstructural analysis. Change in heat treatment process led to heterogeneous distribution of precipitates and increase in the precipitate size which caused deterioration in corrosion resistance. Based on the findings, further optimization of heat treatment was suggested. More importantly, initial material inspection based on microstructural analysis, not only mechanical testing, was recommended.
Bibliography:Selected, peer reviewed papers from the 16th International Symposium on Metallography and Materials Science, April 20-22, 2016, Stará Lesná, High Tatra Mountains, Slovak Republic
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISBN:9783035710182
303571018X
ISSN:0255-5476
1662-9752
1662-9752
DOI:10.4028/www.scientific.net/MSF.891.303