Abstract
Evolution of micro-pores in a third-generation single-crystal nickel-based superalloy during solution heat treatment at 1603 K (1330 °C) was investigated by X-ray computed tomography. 3D information including morphology, size, number, and volume fraction of micro-pores formed during solidification (S-pores) and solution (H-pores) was analyzed. The growth behaviors of both S-pores and H-pores can be related to the vacancy formation and diffusion during heat treatment.
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The authors acknowledge the experimental assistance by Dr. Shaogang Wang from Shenyang National Laboratory for Materials Science, Institute of Metal Research. The work was supported by the National Natural Science Foundation of China (No. 51631008 and 51671196).
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Manuscript submitted December 22, 2016.
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Li, X., Wang, L., Dong, J. et al. Evolution of Micro-Pores in a Single-Crystal Nickel-Based Superalloy During Solution Heat Treatment. Metall Mater Trans A 48, 2682–2686 (2017). https://doi.org/10.1007/s11661-017-4057-2
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DOI: https://doi.org/10.1007/s11661-017-4057-2