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Effect of Heat Treatment on Microstructure of Continuous Unidirectional Solidified Cu–Ni–Sn Alloy

  • Ji Hui LuoEmail author
  • Qin Li
  • Yan Hui Chen
  • Shu Liu
  • Qiu Yue Wen
  • Hui Min Ding
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Cu–15%Ni–8%Sn alloy was prepared by continuous unidirectional solidification (CUS) processing and the as-cast CUS Cu–15%Ni–8%Sn alloy was homogenized. The evolution of microstructure and composition distribution of as-cast and annealed CUS Cu–15%Ni–8%Sn alloy was analyzed. The results show that the microstructure of as-cast CUS Cu–15%Ni–8%Sn is mainly composed of coarse columnar grains and there exist segregation phenomenon in the grain boundaries. After annealing at temperature of 850°C for 30 min, it was found that the composition of the alloy began to become uniform and the solutes gathered at the grain boundaries diffused into the columnar grains.

Keywords

Cu–Ni–Sn alloy Continuous unidirectional solidification Microstructures Annealing 

Notes

Acknowledgements

This work was supported by the project of Yangtze Normal University (2017KYQD130).

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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Ji Hui Luo
    • 1
    Email author
  • Qin Li
    • 1
  • Yan Hui Chen
    • 1
  • Shu Liu
    • 1
  • Qiu Yue Wen
    • 1
  • Hui Min Ding
    • 1
  1. 1.College of Mechanical and Electrical Engineering, Yangtze Normal UniversityChongqingPeople’s Republic of China

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