Document Type
Article
Publication Date
7-15-1991
Publication Title
Materials Science and Engineering A
Abstract
Solutal profiles in dendritic single-crystal specimens of PWA-1480 nickel-base superalloy, which were directionally solidified and quenched, were examined on several transverse cross-sections to obtain the partition coefficients. Similar to their nickel-base binaries, the partition coefficients of tantalum, titanium, and aluminum were found to be less than unity; those of tungsten and cobalt were greater than unity. The partition coefficients were temperature independent in the range 1584-1608 K. The contribution of solid-state diffusion to microsegregation was observed to be negligible.
Repository Citation
Tewari, Surendra N.; Vijayakumar, M.; Lee, James E.; and Curreri, P. A., "Solutal Partition Coefficients in Nickel-Based Superalloy PWA-1480" (1991). Chemical & Biomedical Engineering Faculty Publications. 51.
https://engagedscholarship.csuohio.edu/encbe_facpub/51
Original Citation
Tewari, S., Vijayakumar, M., Lee, J., , & Curreri, P. (1991). Solutal partition coefficients in nickel-based superalloy PWA-1480. Materials Science & Engineering A, 141(1), 97-102. doi:10.1016/0921-5093(91)90713-W
Volume
141
Issue
1-2
DOI
10.1016/0921-5093(91)90713-W
Version
Postprint
Publisher's Statement
NOTICE: this is the author’s version of a work that was accepted for publication in Materials Science and Engineering A. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Materials Science and Engineering A, 141, 1-2, (July 15, 1991)] DOI 10.1016/0921-5093(91)90713-W
Comments
This work was supported by a grant (NAG-8- 091) from NASA-Marshall Space Flight Center, with Center Director Discretionary Fund-87-14.