Effect of orientation on the microstructure of nickel‐based crystalline superalloys | Zendy

Zhao X. B. | Zendy; Liu L. | Zendy; Gao S. F. | Zendy; Ge B. M. | Zendy; Zhang J. | Zendy; Li Y. L. | Zendy; Fu H. Z. | Zendy

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Effect of orientation on the microstructure of nickel‐based crystalline superalloys

Author(s) -

Zhao X. B.,

Liu L.,

Gao S. F.,

Ge B. M.,

Zhang J.,

Li Y. L.,

Fu H. Z.

Publication year - 2011

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.201100391

Subject(s) - misorientation , superalloy , microstructure , materials science , dendrite (mathematics) , nickel , phase (matter) , crystallography , crystal (programming language) , seeding , orientation (vector space) , metallurgy , directional solidification , seed crystal , composite material , single crystal , geometry , chemistry , thermodynamics , mathematics , organic chemistry , physics , computer science , grain boundary , programming language

The effect of crystal orientation on the microstructure of a nickel‐based crystalline superalloys during directional solidification was explored. Differently oriented crystals with [001] and [011] orientations were fabricated with seeding technique. The results showed that primary dendrite arm spacings decreased simultaneously with the increase of misroientation. The primary dendrites arrange in lines in [011] single crystal. For [001] oriented crystals, the size of γ′ phase increased with the increasing of misorientation. However, it was observed that the size of γ′ decreased with large misorientation for [011] orientated growth. Meanwhile, more γ′ in [011] crystals tended to be triangular. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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