Logo image
Back
Processing-structure characterization of rheocast IN-100 superalloy
Journal article

Processing-structure characterization of rheocast IN-100 superalloy

Jung-Jen Allen Cheng, Diran Apelian and Roger D. Doherty
Metallurgical transactions. A, Physical metallurgy and materials science, v 17A(11), pp 2049-2062
01 Nov 1986
DOI: https://doi.org/10.1007/BF02645002
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

METALLIC MATERIALS
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.

Metrics

6 Record Views
19 citations in Web of Science
23 citations in Scopus

Details

UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#12 Responsible Consumption & Production

InCites Highlights

Data related to this publication, from InCites Benchmarking & Analytics tool:

Web of Science research areas
Materials Science, Multidisciplinary
Logo image