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Microstructure evolution of a [011] orientation single crystal nickel-base superalloy during tensile creep

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Abstract

Microstructure of [011] oriented single crystal nickel-base superalloy consists of the cubical γ′ phase embedded coherently in the γ matrix, and arranged regularly along 〈100〉 orientations. After tensile creep, the cubical γ′ phase in the alloy is transformed into the strip-like rafted structure along [001] direction under the ordering transformation free-energy and strain energy change. And the directional growing of γ′ phase is attributed to the atoms Al and Ta into (001) plane to form the stable stacking mode.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, 110178, China

    Sugui Tian, Yong Su, Lili Yu, Shu Zhang & Benjiang Qian

  2. College of Mechanical Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, China

    Yong Su & Shu Zhang

  3. Beijing Institute of Aeronautical Materials, Beijing, 100095, China

    Huichen Yu

Authors
  1. Sugui Tian
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  2. Yong Su
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  3. Lili Yu
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  4. Huichen Yu
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  5. Shu Zhang
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  6. Benjiang Qian
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Correspondence to Yong Su.

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Tian, S., Su, Y., Yu, L. et al. Microstructure evolution of a [011] orientation single crystal nickel-base superalloy during tensile creep. Appl. Phys. A 104, 643–647 (2011). https://doi.org/10.1007/s00339-011-6302-7

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  • DOI: https://doi.org/10.1007/s00339-011-6302-7

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