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Open AccessArticle

Nitrogen Solubility in Liquid Ni-V, Ni-Ta, Ni-Cr-V, and Ni-Cr-Ta Alloys

by Kun Qian 1,2, Bo Chen 1,2,*, Lei Shu 1 and Kui Liu 1,2,*
1
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
2
School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
*
Authors to whom correspondence should be addressed.
Metals 2019, 9(11), 1184; https://doi.org/10.3390/met9111184
Received: 13 October 2019 / Revised: 25 October 2019 / Accepted: 31 October 2019 / Published: 2 November 2019
An investigation has been made concerning the solubility of nitrogen in liquid binary alloys (Ni-V and Ni-Ta) and ternary alloys (Ni-Cr-V and Ni-Cr-Ta) by sampling method. The experiments were carried out in the temperature range from 1773 K to 1873 K and under the nitrogen partial pressure up to 1.0 bar. A technique involving induction melting and a rapid quench device has been used in this study. It has been found that Sieverts’ law successfully describes the nitrogen dissolution in all these liquid alloys up to 1.0 bar of nitrogen gas partial pressure. The additions of vanadium, tantalum and chromium significantly increase the nitrogen solubility, especially vanadium-alloying addition. Furthermore, we have determined the interaction parameters, enthalpies and entropies of nitrogen dissolution in these liquid alloys.
Keywords: vanadium; tantalum; nitrogen solubility; interaction parameter; liquid nickel-based alloys vanadium; tantalum; nitrogen solubility; interaction parameter; liquid nickel-based alloys
MDPI and ACS Style

Qian, K.; Chen, B.; Shu, L.; Liu, K. Nitrogen Solubility in Liquid Ni-V, Ni-Ta, Ni-Cr-V, and Ni-Cr-Ta Alloys. Metals 2019, 9, 1184.

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