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Microstructure and Grain Refining Performance of High-Quality Al–5Ti–1B Master Alloy

  • Yuehua Kang
  • Shuncheng WangEmail author
  • Nan Zhou
  • Dongfu Song
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 217)

Abstract

The chemical composition, microstructure, and grain refining performance of high-quality Al–5Ti–1B master alloy were investigated. The results show that the content of alloying elements Ti and B in the Al–5Ti–1B master alloy is stable. The content of impurity elements Fe, Si, V, and K is very low. The microstructure of Al–5Ti–1B master alloy is uniform, fine and no oxide inclusions. The average size of TiAl3 and TiB2 phases is 16.7 and 0.73 µm, respectively. By adding 0.2 wt% Al–5Ti–1B master alloy, the grain size of pure Al has been refined to 75.7 µm, showing an excellent grain refining efficiency, strong ability to anti-fading and good adaption to a wide range of aluminum-melt temperature.

Keywords

Grain refiner Al–Ti–B master alloy Grain-refining performance Microstructure 

Notes

Acknowledgements

We thank the GDAS’ Project of Science and Technology Development (Grants No. 2018GDASCX-0966, 2018GDASCX-0117) and the Science and Technology Planning Project of Guangdong Province, China (Grants No. 2017A070702019, 2017A070701019) for the financial support.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Yuehua Kang
    • 1
  • Shuncheng Wang
    • 1
    Email author
  • Nan Zhou
    • 1
  • Dongfu Song
    • 1
  1. 1.Guangdong Institute of Materials and ProcessingGuangzhouChina

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