Solutal Partition Coefficients in Nickel-Based Superalloy PWA-1480

M. Vijayakumar; James E. Lee; P. A. Curreri

doi:10.1016/0921-5093(91)90713-W

Solutal Partition Coefficients in Nickel-Based Superalloy PWA-1480

M. Vijayakumar
, James E. Lee
, P. A. Curreri

Cleveland State University
NASA Marshall Space Flight Center

Research output: Contribution to journal › Article › peer-review

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.

Original language	American English
Journal	Materials Science and Engineering A
Volume	141
DOIs	https://doi.org/10.1016/0921-5093(91)90713-W
State	Published - Jul 15 1991
Externally published	Yes

Disciplines

Materials Science and Engineering
Transport Phenomena

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http://www.sciencedirect.com/science/article/pii/092150939190713W

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title = "Solutal Partition Coefficients in Nickel-Based Superalloy PWA-1480",

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.",

author = "M. Vijayakumar and Lee, \{James E.\} and Curreri, \{P. A.\}",

note = "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",

year = "1991",

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day = "15",

doi = "10.1016/0921-5093(91)90713-W",

language = "American English",

volume = "141",

journal = "Materials Science and Engineering A",

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T1 - Solutal Partition Coefficients in Nickel-Based Superalloy PWA-1480

AU - Vijayakumar, M.

AU - Lee, James E.

AU - Curreri, P. A.

N1 - 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

PY - 1991/7/15

Y1 - 1991/7/15

N2 - 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.

AB - 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.

UR - https://engagedscholarship.csuohio.edu/encbe_facpub/51

U2 - 10.1016/0921-5093(91)90713-W

DO - 10.1016/0921-5093(91)90713-W

M3 - Article

VL - 141

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

ER -

Solutal Partition Coefficients in Nickel-Based Superalloy PWA-1480

Abstract

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