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Influence of Minor Grain Boundary Elements on the Solidification Behavior of a Re-containing Single-Crystal Superalloy

  • Jian ZhangEmail author
  • Jingxuan Zhao
  • Xiaotie Zhang
  • Yan Yang
  • Hao Chen
  • Hua Jiang
  • Li She
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 217)

Abstract

The re-containing single-crystal superalloys with different hafnium and boron additions were fabricated, and their microstructures and segregation behavior were investigated. The results indicated that the addition of hafnium and boron increase the volume fraction of γ/γ′ eutectic, and decrease the volume fraction of micropore. The solidification segregation ratio of Re, W, Mo, Al, and Ta obviously varied with hafnium and boron modified alloy. In addition, individual or simultaneous hafnium and boron additions obviously decrease the liquidus and solidus temperature as well as the incipient melting point.

Keywords

Hafnium Boron Re-containing superalloy Microstructure Segregation 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Jian Zhang
    • 1
    Email author
  • Jingxuan Zhao
    • 1
  • Xiaotie Zhang
    • 1
  • Yan Yang
    • 1
  • Hao Chen
    • 1
  • Hua Jiang
    • 1
  • Li She
    • 1
  1. 1.Science and Technology on Advanced High Temperature Structural Materials LaboratoryBeijing Institute of Aeronautical MaterialsBeijingChina

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