Fabrication and electrochemical characterization of erbium modified Mg-Al intermetallic coating

An erbium‐modified Mg17Al12 based coating was fabricated via hot‐pressing sintering method on as‐extruded AZ61 magnesium alloy. The results show that the coating is composed of Mg17Al12 matrix and Al3Er phase. The erbium addition made the hardness of the coating improved by 50 HV than single phase M...

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Bibliographic Details
Published inMaterials and corrosion Vol. 66; no. 8; pp. 772 - 776
Main Authors Li, Y.-G., Wei, Y.-H., Hou, L.-F., Guo, C.-L., Han, P.-J.
Format Journal Article
LanguageEnglish
Published Weinheim Blackwell Publishing Ltd 01.08.2015
Wiley Subscription Services, Inc
Subjects
Alloys
Charge transfer
Coating
Corrosion
Corrosion resistance
Erbium
Hardness
intermetallic coating
Intermetallic compounds
Intermetallics
magnesium alloy
Magnesium base alloys
Mg17Al12
sintering
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Summary:An erbium‐modified Mg17Al12 based coating was fabricated via hot‐pressing sintering method on as‐extruded AZ61 magnesium alloy. The results show that the coating is composed of Mg17Al12 matrix and Al3Er phase. The erbium addition made the hardness of the coating improved by 50 HV than single phase Mg17Al12. According to electrochemical results, the coating has lower corrosion current density and higher charge transfer resistance compared with Mg17Al12, which indicates the intermetallic coating exhibits good corrosion resistance.
Bibliography:istex:94E799A86DF302F832136C7E2F2FD2F50BB6334F
Natural Science Foundation of Shanxi Province - No. 2011011020-2; No. 2010021023-1
China Postdoctoral Science Foundation - No. 20100471586
Young Academic Leaders of Higher Learning Institutions of Shanxi, the Doctoral Fund of the Ministry of Education of China - No. 20091402110010
ark:/67375/WNG-TBT4MNHN-V
ArticleID:MACO201407815
Postgraduate Innovation Program of Shanxi Province - No. 20113028
National Natural Science Foundation of China - No. 51374151; No. 51001079; No. 21201129
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0947-5117
1521-4176
DOI:10.1002/maco.201407815