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Licensed Unlicensed Requires Authentication Published by De Gruyter May 23, 2021

Precipitated phase in the β phase of IN783 alloy

Junjian Liu, Qiang Zhao, Siyou Tao, Jiaqing Wang, Yue Wu and Xiaodong Du
From the journal Materials Testing


In Inconel 783 alloy, there are mainly two kinds of strengthening phases of β and γ’. In addition, it is found that there are other precipitated phases in the alloy’s β phase. By means of multiple testing methods, the types and functions of the precipitated phase in the β phase were determined. The results showed that the precipitated phases from β phase were nanoscale Nb and Ti carbides and a large number of white needle-like Laves phases. The former, due to its small size, which can improve the grain boundary slip resistance of the alloy, thus improves the shaping of the material. While the latter, due to its sharp shape and due to its large amount, destroys the original structure of the β phase and greatly reduces the room temperature plasticity of the alloy.

Professor Dr. Xiaodong Du School of Materials Science and Engineering Hefei University of Technology Hefei, Anhui 230009, P. R. China


The authors acknowledge the financial support obtained from the Science and Technology Project of Datang Electric Power Group (KY-2018-03), Lvsi Project of Datang Electric Power Group (KY-2019).


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Published Online: 2021-05-23
Published in Print: 2021-05-26

© 2021 Walter de Gruyter GmbH, Berlin/Boston, Germany

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