Morphological Peculiarities of R-Fe-B (R = Nd, Pr) Alloys Formed upon Solidification by Strip-Casting
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F20%3A10245737" target="_blank" >RIV/61989100:27360/20:10245737 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1134/S0031918X20080049" target="_blank" >https://link.springer.com/article/10.1134/S0031918X20080049</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1134/S0031918X20080049" target="_blank" >10.1134/S0031918X20080049</a>
Alternative languages
Result language
angličtina
Original language name
Morphological Peculiarities of R-Fe-B (R = Nd, Pr) Alloys Formed upon Solidification by Strip-Casting
Original language description
X-ray diffraction analysis, scanning electron microscopy, and atomic force microscopy are used to study the phase composition, texture, and peculiarities of the morphology of R-Fe-B (R = Nd, Pr, Dy) alloys prepared by strip-casting technology. Along with the traditional structural components of the alloys, namely, areas characterized by randomly oriented fine grains of the main magnetic phase with the Nd2Fe14B-type structure (which are formed near the contact surface of flakes) and coarse extended textured grains of the phase (in the volume of flakes), wide areas characterized by uniform distribution of rare-earth metal-rich phase with a period of 2-4 mu m were also found. The formation of these areas takes place in the absence of coarse dendritic crystallites and, according to the suggested mechanism, is related to the solidification of the melt under conditions of its motion upon quenching on a cooled cylindrical surface. Data indicating the melt twisting upon solidification, which favors the formation of the structure with the aforementioned distribution of intergranular phase, are reported. The data obtained are discussed from the viewpoint of their practical utility for the improvement of the structure of alloys prepared by strip-casting and powders for manufacturing Nd-Fe-B permanent magnets.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20500 - Materials engineering
Result continuities
Project
<a href="/en/project/LTARF18031" target="_blank" >LTARF18031: Development of physico-chemical and engineering foundations for the initiation of innovative resources-economy technology of high-power and high-coercivity (Nd,R)-Fe-B (R = Pr, Tb, Dy, Ho) low-REM permanent magnets</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physics of Metals and Metallography
ISSN
0031-918X
e-ISSN
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Volume of the periodical
121
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
772-782
UT code for WoS article
000576572600007
EID of the result in the Scopus database
2-s2.0-85092397089