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Volume 26 Issue 4
Apr.  2019
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文章导航 >  矿物冶金与材料学报（英文）  > 2019  >  26(4): 500-506
Yin-long Shao, Jing Xu, Hao Wang, Yi-wen Zhang, Jian Jia, Jian-tao Liu, Hai-liang Huang, Ming Zhang, Zhi-cheng Wang, Hong-fei Zhang, and Ben-fu Hu, Effect of Ti and Al on microstructure and partitioning behavior of alloying elements in Ni-based powder metallurgy superalloys, Int. J. Miner. Metall. Mater., 26(2019), No. 4, pp. 500-506. https://doi.org/10.1007/s12613-019-1757-1
Cite this article as:
Yin-long Shao, Jing Xu, Hao Wang, Yi-wen Zhang, Jian Jia, Jian-tao Liu, Hai-liang Huang, Ming Zhang, Zhi-cheng Wang, Hong-fei Zhang, and Ben-fu Hu, Effect of Ti and Al on microstructure and partitioning behavior of alloying elements in Ni-based powder metallurgy superalloys, Int. J. Miner. Metall. Mater., 26(2019), No. 4, pp. 500-506. https://doi.org/10.1007/s12613-019-1757-1
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研究论文

Effect of Ti and Al on microstructure and partitioning behavior of alloying elements in Ni-based powder metallurgy superalloys

  • Guangdong Provincial Key Laboratory for Technology and Application of Metal Toughening, Guangdong Institute of Materials and Processing, Guangzhou 510650, China

  • School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

  • High Temperature Material Research Institute, Central Iron and Steel Research Institute, Beijing 100081, China

  • 通讯作者:

    Hao Wang    E-mail: hwang@ustb.edu.cn

  • The microstructure and partitioning behaviors of alloying elements in the γ and γ' phases in Ni-based powder metallurgy superalloys with different Ti and Al contents were investigated. The results showed that Ti and Al were mainly enriched in the γ' phase, partially partitioned in the γ matrix, and slightly distributed in the carbides. Different Ti and Al contents in various alloys influenced the composition and amount of MC carbides but did not influence the MC carbides' morphology. With increasing Ti and Al contents, γ + γ' fan-type structures formed at the grain boundary, eventually resulting in a coarsened γ' phase. In addition, the morphology of the secondary γ' phase transformed from nearly spherical to cuboidal. The saturation degrees of Cr, Co, and Mo in the γ matrix were substantially improved with increasing Ti and Al contents.
    • Research Article

    Effect of Ti and Al on microstructure and partitioning behavior of alloying elements in Ni-based powder metallurgy superalloys

    + Author Affiliations
      Abstract
    • The microstructure and partitioning behaviors of alloying elements in the γ and γ' phases in Ni-based powder metallurgy superalloys with different Ti and Al contents were investigated. The results showed that Ti and Al were mainly enriched in the γ' phase, partially partitioned in the γ matrix, and slightly distributed in the carbides. Different Ti and Al contents in various alloys influenced the composition and amount of MC carbides but did not influence the MC carbides' morphology. With increasing Ti and Al contents, γ + γ' fan-type structures formed at the grain boundary, eventually resulting in a coarsened γ' phase. In addition, the morphology of the secondary γ' phase transformed from nearly spherical to cuboidal. The saturation degrees of Cr, Co, and Mo in the γ matrix were substantially improved with increasing Ti and Al contents.
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