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Microstructures of Spray Formed Superalloy GH742

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Abstract:

Microstructures and hot deformation behaviors of spray formed superalloy GH742 have been studied in this paper. The results indicate that the spray formed superalloy GH742 has high relative density, low oxygen pickup, refined microstructure, and good forgeability. The fully inhibited coarsening of microstructure in spray formed superalloy GH742 has also been found in this study. 32wt% γ¢ and 0.5wt% carbonitrides, (Nb,Ti)(C,N) and Ti(C,N) were found in the as-deposited GH742, and most of them are sub-micrometer.

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Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

2845-2848

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.2845

Citation:

Cite this paper

Online since:

January 2005

Authors:

Zhou Li, Guo Qing Zhang, Shi Fan Tian, Ming Gao Yan

Keywords:

Hot Deformation Behaviour, Microstructure, Spray Forming, Superalloy

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References

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