Modification of Hydration Resistance of SrO with ZrO2 Addition

doi:10.19691/j.cnki.1004-4493.2022.04.004

China's Refractories ›› 2022, Vol. 31 ›› Issue (4): 16-21.DOI: 10.19691/j.cnki.1004-4493.2022.04.004

Modification of Hydration Resistance of SrO with ZrO₂ Addition

CHEN Guangyao^{1, 2, *}, LIU Jian¹, YU Feihai¹, HOU Xiao¹, FENG Qisheng¹, PENG Jun³, WANG Enhui⁴, HOU Xinmei⁴, LU Xionggang^{1, 2}, LI Chonghe^{1, 2}

1 State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China;
2 Shanghai Special Casting Engineering Technology Research Center, Shanghai 201605, China;
3 China Northwest Architecture Design and Research Institute Co., Ltd, Xi’an 710018, China;
4 Beijing Advanced Innovation Center for Materials Genome Engineering, Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China

Online:2022-12-15 Published:2022-12-23
Contact: * e-mail: cgybless1@shu.edu.cn
About author:Chen Guangyao, an associate professor, obtained his Ph.D from Shanghai University in 2017 and continued his study at Shanghai University Postdoctoral Research Station from 2017 to 2019. Since then, he has been working in Shanghai University. He is mainly engaged in the development and application of high stability refractories for the smelting of highly active metals (including titanium, zirconium, etc.) as well as the research on the preparation of TiAl alloy centrifugal casting blades and single crystal blades. He has presided over 2 Postdoctoral Funds of the National Natural Science Foundation in China, 2 Youth Funds, and 2 Horizontal Projects. He has obtained 3 national invention patents and published 23 SCI papers and 7 Chinese EI papers in domestic and international journals.

Abstract

Abstract: Considering the high melting point and high stability of SrO, it has potential applications in the field of the preparation of titanium alloys. To improve the hydration resistance, SrO samples with different ZrO₂ additions were fabricated after firing at 1 750 ℃ for 6 h. The phase, the microstructure, and the hydration resistance of the samples were researched. The results show that the sample with 33 mol% ZrO₂ addition possesses good hydration resistance with the mass gain after hydration for 13 days of less than 0.42 mass%. The SrO crucible with 33 mol% ZrO₂ addition does not react with TiNi alloy melt during melting, which provides a support for searching new refractories with good hydration resistance for induction melting titanium alloys.

Key words: strontium oxide, hydration resistance, titanium-nickel alloy, induction melting

CHEN Guangyao, LIU Jian, YU Feihai, HOU Xiao, FENG Qisheng, PENG Jun, WANG Enhui, HOU Xinmei, LU Xionggang, LI Chonghe. Modification of Hydration Resistance of SrO with ZrO₂ Addition[J]. China's Refractories, 2022, 31(4): 16-21.

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Modification of Hydration Resistance of SrO with ZrO₂ Addition

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