Interaction between CA6-MA crucible and molten wrought Ni-based superalloys |
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| Affiliation: | 1. Beijing Advanced Innovation Center for Materials Genome Engineering, Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 10083, China;2. Henan Key Laboratory of High Temperature Functional Ceramics, Zhengzhou University, Zhengzhou 450052, China;3. State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China;4. AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China;1. Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang 110819, China;2. School of Materials Science and Engineering, Beihang University, No. 37 Xueyuan Road, Beijing 100191, China;3. Southwest Technology and Engineering Research Institute, No. 115 Fenglin Road, Jinfeng Town, Jiulongpo District, Chongqing 401329, China;4. Yantai Research Institute of Harbin Engineering University, No. 1 Qingdao Street, Yantai Economic & Technological Development Area, Shandong, PR China;5. Institute of Aero Engine Research, Beihang University, No. 37 Xueyuan Road, Beijing 100191, China;1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China;2. School of Mechanical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia;1. National Research Council of Italy - Institute of Science, Technology and Sustainability for Ceramics (CNR-ISSMC; former ISTEC), Via Granarolo 64, I-48018 Faenza, RA, Italy;2. Eskisehir Technical University, Department of Materials Science and Engineering, Eskisehir, Turkey;1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China;2. School of Material Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China;3. Department of the Built Environmen, Eindhoven University of Technology, Eindhoven 5600 MB, the Netherlands;1. State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi''an 710049, China;2. State Key Laboratory for Mechanical Behavior of Materials, School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi''an 710049, China;3. Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, School of Mechanical Engineering, Xi’an Jiaotong University, Xi''an 710049, China;4. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China;5. Department of Materials Science and Engineering & Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, China;6. College of Materials Science and Engineering, Xi''an University of Science and Technology, Xi''an 710054, China |
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| Abstract: | The interfacial behavior between CaAl12O19-MgAl2O4 spinel (CA6-MA) crucible and molten wrought Ni-based superalloys during the vacuum induction melting process have been comprehensively investigated, with Al2O3 crucible included for comparison. Experimental and theoretical results suggest that CA6-MA crucible exhibits higher thermodynamic stability and poor wettability to the superalloy melt. Benefited from these merits, the superalloy ingot with cleaner surfaces and more metallic luster is obtained in the CA6-MA crucible. Furthermore, the total oxygen content in the superalloy ingots obtained from CA6-MA crucible is 17.9 ppm, which is considerably lower than that from Al2O3 crucible (29.7 ppm). These results indicate that CA6-MA crucible can be a promising candidate for melting wrought Ni-based superalloys. |
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| Keywords: | Wrought Ni-based superalloy Interaction Thermodynamic stability Wettability |
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