Evolution of dislocation structure in the heat affected zone of a nickel-based single crystal

O. M. Barabash; J. A. Horton; S. S. Babu; J. M. Vitek; S. A. David; J. W. Park; G. E. Ice; R. I. Barabash

doi:10.1063/1.1777393

Evolution of dislocation structure in the heat affected zone of a nickel-based single crystal

O. M. Barabash, J. A. Horton, S. S. Babu, J. M. Vitek, S. A. David, J. W. Park, G. E. Ice, R. I. Barabash

Department of Materials Science and Engineering

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

20 Citations (Scopus)

Abstract

The dislocation structure changes of Ni-based single crystal superalloy in the heat affected zone were investigated. X-ray Laue diffraction and electron microscopy show that alternating dislocations slip systems dominate in the HAZ. The orientation at each position of the crystal was precisely determined by an automated indexing program. The results show that the maximum value of the thermal gradient is observed in the heat affected zone near the fusion line.

Original language	English
Pages (from-to)	3673-3679
Number of pages	7
Journal	Journal of Applied Physics
Volume	96
Issue number	7
DOIs	https://doi.org/10.1063/1.1777393
Publication status	Published - 2004 Oct 1

Bibliographical note

Funding Information:
The research was sponsored by the Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, US Department of Energy, under Contract No. DE-AC05-00OR22725 with UT-Battelle, LLC. The authors thank Dr. H. Harada of National Institute of Materials Sciences, Tsukuba, Japan for providing the samples used in the analysis.

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1063/1.1777393

Cite this

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title = "Evolution of dislocation structure in the heat affected zone of a nickel-based single crystal",

abstract = "The dislocation structure changes of Ni-based single crystal superalloy in the heat affected zone were investigated. X-ray Laue diffraction and electron microscopy show that alternating dislocations slip systems dominate in the HAZ. The orientation at each position of the crystal was precisely determined by an automated indexing program. The results show that the maximum value of the thermal gradient is observed in the heat affected zone near the fusion line.",

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AU - Barabash, O. M.

AU - Horton, J. A.

AU - Babu, S. S.

AU - Vitek, J. M.

AU - David, S. A.

AU - Park, J. W.

AU - Ice, G. E.

AU - Barabash, R. I.

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N2 - The dislocation structure changes of Ni-based single crystal superalloy in the heat affected zone were investigated. X-ray Laue diffraction and electron microscopy show that alternating dislocations slip systems dominate in the HAZ. The orientation at each position of the crystal was precisely determined by an automated indexing program. The results show that the maximum value of the thermal gradient is observed in the heat affected zone near the fusion line.

AB - The dislocation structure changes of Ni-based single crystal superalloy in the heat affected zone were investigated. X-ray Laue diffraction and electron microscopy show that alternating dislocations slip systems dominate in the HAZ. The orientation at each position of the crystal was precisely determined by an automated indexing program. The results show that the maximum value of the thermal gradient is observed in the heat affected zone near the fusion line.

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Evolution of dislocation structure in the heat affected zone of a nickel-based single crystal

Abstract

Bibliographical note

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