PROPERTIES OF Ni/Cu/Ni AND Ni COATINGS FOR CORROSION PROTECTION OF NdFeB BASE MAGNETS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F13%3A86089164" target="_blank" >RIV/61989100:27360/13:86089164 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
PROPERTIES OF Ni/Cu/Ni AND Ni COATINGS FOR CORROSION PROTECTION OF NdFeB BASE MAGNETS
Original language description
Economical and useful NdFeB magnets, produced by powder metallurgy, are sensitive to corrosion, especially in wet or water environments, therefore protective galvanic coatings of metals (Ni, Cu, Zn) are mostly applied on their surface. This contributiondeals with verification and comparison of corrosion properties of selected commercial combined Ni/Cu/Ni coating and simple Ni coating (made in laboratory) on NdFeB magnet type in the shape of a ballet and cylinder. Chemical composition of coatings and ofbasic material was verified by microanalysis and magnetic phase of the type Nd2Fe14B was identified. According to the performed standard salt spray test was found out that corrosion resistance of selected magnets with tested coatings is low. The degradation started from rust points (pits) and stain, through lifting and cracking of coatings to their peeling and then intensive corrosion of the base material under action of galvanic cell. Metallographic analysis after test has confirmed th
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JK - Corrosion and material surfaces
OECD FORD branch
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Result continuities
Project
<a href="/en/project/ED0040%2F01%2F01" target="_blank" >ED0040/01/01: Regional materials science and technology centre</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
METAL 2013 : 22nd International Conference on Metallurgy and Materials : conference proceedings : May 15th - 17th 2013, Hotel Voronez I, Brno Czech Republic, EU [CD-ROM]
ISBN
978-80-87294-41-3
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
1-5
Publisher name
Tanger
Place of publication
Ostrava
Event location
Brno
Event date
May 15, 2013
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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