Seeding of single crystal superalloys--Role of seed melt-back on casting defects
Data(s) |
01/01/2004
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Resumo |
Single crystal seeds of the nickel-base superalloy CMSX-4 have been partially melted in a temperature gradient and then quenched. Small islands of random orientation are observed throughout the melted-back semi-solid. These random orientations appear to be pinched-off secondary dendrite arms, but there is no evidence that they are transported ahead of the dendrite tips to nucleate stray grains during directional solidification.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Pergamon |
Relação |
http://dro.deakin.edu.au/eserv/DU:30004415/n20071143.pdf http://dx.doi.org/10.1016/j.scriptamat.2003.08.029 |
Direitos |
2003, Acta Materialia Inc. |
Palavras-Chave | #Bridgman technique #directional solidification #semi-solid #nickel alloy #electron backscattering diffraction (EBSD) |
Tipo |
Journal Article |