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- Title
A Study of Grain Selection in Two-Dimensional (2D) Grain Selectors during the Investment Casting of Single-Crystal Superalloy.
- Authors
Zhu, Xintao; Wang, Fu; Ma, Dexin
- Abstract
In this study, a series of Bridgman casting experiments were conducted to study the physical processes occurring in 2D grain selectors with different geometric parameters. The corresponding effects of the geometric parameters on grain selection were quantified by using an optical microscopy (OM) and a scanning electronic microscopy (SEM) equipped with electron backscatter diffraction (EBSD) function. Based on the results, the influences of the geometric parameters of the grain selectors are discussed, and an underlying mechanism accounting for the experimental results is proposed. The critical nucleation undercooling in the 2D grain selectors during grain selection was also analyzed.
- Subjects
INVESTMENT casting; HEAT resistant alloys; MICROSCOPY; ELECTRON diffraction; DIRECTIONAL solidification
- Publication
Materials (1996-1944), 2023, Vol 16, Issue 11, p4112
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma16114112