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Interfacial Reaction Between BaZrO3/Al2O3 Composite Mould and Ti-46Al-8Nb Melt
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Lu MAO1, Yuchen YANG1, Guangyao CHEN1, 2, Baohua DUAN1, Haitao LI1, Qisheng FENG1, Xionggang LU1, 2, 3, Chonghe LI1, 2
Journal of the Chinese Ceramic Society | 2022, 50(12) : 3314 - 3322
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Journal of the Chinese Ceramic Society | 2022, 50(12): 3314-3322
• Research Articles •
Interfacial Reaction Between BaZrO3/Al2O3 Composite Mould and Ti-46Al-8Nb Melt
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Lu MAO1, Yuchen YANG1, Guangyao CHEN1, 2, Baohua DUAN1, Haitao LI1, Qisheng FENG1, Xionggang LU1, 2, 3, Chonghe LI1, 2
Affiliations
  • 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.School of Materials Science and Engineering, Shanghai DianJi University, Shanghai 201306, China

    • MAO Lu (1995-), male, Master candidate. E-mail:

About Author:

MAO Lu (1995-), male, Master candidate. E-mail:

Published: 2022-12-20 doi: 10.14062/j.issn.0454-5648.20220540
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Ti-46Al-8Nb alloy was heated to 1 650 ℃ in a BaZrO3/Al2O3 composite mould at different time. The microstructure and the dissolution of mould after contacting the alloy melt at different time were analyzed by optical microscopy, scanning electron microscopy, X-ray diffraction and inductively coupled plasma emission spectroscopy, respectively. The interfacial reaction between the alloy melt and the mould was investigated. The results show that the dissolution reaction of the mould in the alloy melt results in the different thicknesses of the erosion layer on the inner wall of the mould (i.e., 1 510, 2 476 μm and 3 574 μm) after the alloy is held for 30, 60 min and 120 min, respectively. The erosion mechanism of the melt on the mould follows a dynamic model controlled by the diffusion dissolution. The dissolution of mould refractory results in the increase of the contents of O, Zr, Y, and Si elements in the alloy as the holding time increases, further leading to the increase of the microhardness of the alloy. After solidification, an adhesion layer is formed on the alloy surface. Meanwhile, BaAl2O4 and Y4Al2O9 phases are formed in the erosion layer. Two typical inclusions, i.e., (Ti, Zr)5(Si, Al)3 and Y4Al2O9, are formed in the alloy, and their contents increase with the increase of holding time.

titanium aluminum alloy  /  barium zirconate/alumina composite mould  /  interaction mechanism  /  inclusion
毛露, 杨宇辰, 陈光耀, 段保华, 李海涛, 冯齐胜, 鲁雄刚, 李重河. BaZrO3/Al2O3复合模壳与Ti-46Al-8Nb熔体界面反应机理. 硅酸盐学报, 2022 , 50 (12) : 3314 -3322 . DOI: 10.14062/j.issn.0454-5648.20220540
Lu MAO, Yuchen YANG, Guangyao CHEN, Baohua DUAN, Haitao LI, Qisheng FENG, Xionggang LU, Chonghe LI. Interfacial Reaction Between BaZrO3/Al2O3 Composite Mould and Ti-46Al-8Nb Melt[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (12) : 3314 -3322 . DOI: 10.14062/j.issn.0454-5648.20220540
Appendix
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Year 2022 volume 50 Issue 12
24
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Article Info
doi: 10.14062/j.issn.0454-5648.20220540
  • Receive Date：2022-07-05
  • Online Date：2026-10-20
  • Published：2022-12-20
Article Data
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History
  • Received：2022-07-05
  • Revised：2022-08-02
Funding
Affiliations
    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.School of Materials Science and Engineering, Shanghai DianJi University, Shanghai 201306, China

Corresponding:

CHEN Guangyao (1987-), male, Ph.D., Lecturer; E-mail:
LI Chonghe (1962-), male, Ph.D., Professor.
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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