Journal article
Processing-structure characterization of rheocast IN-100 superalloy
Metallurgical transactions. A, Physical metallurgy and materials science, v 17A(11), pp 2049-2062
01 Nov 1986
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Abstract
The rheocasting solidification process was applied in the production of IN-100 nickel base superalloy, and the effects of processing variables, such as stirring speed, isothermal stirring time, and volume fraction solid during isothermal stirring, on the resultant rheocast structure were investigated. Ingots that were furnace cooled at the same rate but without stirring were compared with the rheocast ingots. Rheocasting yielded fine-grained structures, where the extent of microsegregation, the variation in macrostructure, and the solidification-induced porosity and ingot cracking were found to be reduced in comparison to the unstirred ingots. The grain size and nonuniformity were reduced by increasing the stirring speed, isothermal stirring time, or the volume fraction solid during stirring; decreased microsegregation was achieved by an increase in the volume fraction solid. The structures of grain boundaries lent support to the grain boundary mechanism proposed by Vogel et al. (1977) for rheocasting.
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Details
- Title
- Processing-structure characterization of rheocast IN-100 superalloy
- Creators
- Jung-Jen Allen Cheng - Drexel UniversityDiran Apelian - Drexel UniversityRoger D. Doherty - Drexel University
- Publication Details
- Metallurgical transactions. A, Physical metallurgy and materials science, v 17A(11), pp 2049-2062
- Publisher
- Springer Nature
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:A1986G403800017
- Scopus ID
- 2-s2.0-0022810622
- Other Identifier
- 991019173745004721
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Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Materials Science, Multidisciplinary