A Phenomenological Analysis of Freckling in Directional Solidification of Ni-Base Superalloy: The Role of Edge and Curvature in Casting Components

The geometrical factor in freckle formation has rarely been taken into account. In this work, freckle formation in superalloy components is examined. It is found that freckle formation is subject to the effects of the edge and curvature. In polygonal casting sections, freckles are formed preferably...

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Published inMetallurgical and materials transactions. A, Physical metallurgy and materials science Vol. 51; no. 1; pp. 88 - 92
Main Authors Ma, D. X., Dong, Z. H., Wang, F., Dong, H. B.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.01.2020
Springer Nature B.V
Subjects
Characterization and Evaluation of Materials
Chemistry and Materials Science
Communication
Curvature
Directional solidification
Materials Science
Metallic Materials
Nanotechnology
Nickel base alloys
Qualitative research
Structural Materials
Superalloys
Surfaces and Interfaces
Thin Films
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Summary:The geometrical factor in freckle formation has rarely been taken into account. In this work, freckle formation in superalloy components is examined. It is found that freckle formation is subject to the effects of the edge and curvature. In polygonal casting sections, freckles are formed preferably on the convex edges. In the components with a curved contour, freckles are exclusively formed on the outward-curving surface having positive curvature.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-019-05513-5