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Volume 17 Issue 3
Jun.  2010
数据统计

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Zhong-nan Bi, Jian-xin Dong, Mai-cang Zhang, Lei Zheng,  and Xi-shan Xie, Mechanism of α-Cr precipitation and crystallographic relationships between α-Cr and δ phases in Inconel 718 alloy after long-time thermal exposure, Int. J. Miner. Metall. Mater., 17(2010), No. 3, pp. 312-317. https://doi.org/10.1007/s12613-010-0310-z
Cite this article as:
Zhong-nan Bi, Jian-xin Dong, Mai-cang Zhang, Lei Zheng,  and Xi-shan Xie, Mechanism of α-Cr precipitation and crystallographic relationships between α-Cr and δ phases in Inconel 718 alloy after long-time thermal exposure, Int. J. Miner. Metall. Mater., 17(2010), No. 3, pp. 312-317. https://doi.org/10.1007/s12613-010-0310-z
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Mechanism of α-Cr precipitation and crystallographic relationships between α-Cr and δ phases in Inconel 718 alloy after long-time thermal exposure

  • 通讯作者:

    Zhong-nan Bi    E-mail: bizhongnan21@yahoo.com.cn

  • To study the precipitation mechanism of α-Cr phase in Inconel 718 alloy, the samples after long-time aging at 650 and 677℃ were examined by microstructural observations and chemical phase analysis methods. Combining the thermodynamics and kinetics calculation results, α-Cr always precipitates in the vicinity of δ phase, because δ phase rejects Cr into the γ-matrix when growing. The selected area diffraction patterns confirm that the crystallographic relationships of α-Cr with δ phase are (010)δ//(1 10)α-Cr and [100]δ//[111]α-Cr. A graphic model is also presented to show the crystallographic relation between α-Cr and δ phases.
  • Mechanism of α-Cr precipitation and crystallographic relationships between α-Cr and δ phases in Inconel 718 alloy after long-time thermal exposure

    + Author Affiliations
    • To study the precipitation mechanism of α-Cr phase in Inconel 718 alloy, the samples after long-time aging at 650 and 677℃ were examined by microstructural observations and chemical phase analysis methods. Combining the thermodynamics and kinetics calculation results, α-Cr always precipitates in the vicinity of δ phase, because δ phase rejects Cr into the γ-matrix when growing. The selected area diffraction patterns confirm that the crystallographic relationships of α-Cr with δ phase are (010)δ//(1 10)α-Cr and [100]δ//[111]α-Cr. A graphic model is also presented to show the crystallographic relation between α-Cr and δ phases.
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