English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/88052
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Heterogeneous Nucletation During Rapid Solidification by Laser Surface Melting

AutorRieker, C.; Morris, David G.
Palabras claveHeterogeneous nucletation
Grain sizes
Solidification by Laser
Fecha de publicación1990
EditorElsevier
CitaciónActa Materialia et Materialia 38: 1037-1043 (1990)
ResumenCrstal nucleation during rapid solidification generally occurs rather slowly except at active heterogeneities or unless very large undercoolings are achieved. Many typical microstructures are then essentially of columnar morphology, for example from the bottom surface of a melt-spun ribbon or from a heterogeneity on the surface of a powder particle. In such cases the microstructure may be considerably refined by the presence of many active nucleants for heterogeneous nucleation distributed throughout the melt. Such microstructural refinement is analysed here during rapid solidification of a laser-melted surface containing fine TiB2 particles. Simulation of the cooling and solidification conditions confirms these particles to be highly effective nucleating substrates, capable of greatly increasing nucleating rates. As a result it is possible to obtain materials possessing greatly refined grain sizes.
URIhttp://hdl.handle.net/10261/88052
DOI10.1016/0956-7151(90)90176-H
Identificadoresdoi: 10.1016/0956-7151(90)90176-H
issn: 1359-6454
Aparece en las colecciones: (CENIM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.