Low Frequency Electromagnetic Casting of 2195 Aluminum-Lithium Alloy and Its Effects on Microstructure and Mechanical Properties
来源期刊：Acta Metallurgica Sinica2020年第3期
论文作者：Fu-Yue Wang Xiang-Jie Wang Wei Sun Fang Yu Jian-Zhong Cui
文章页码：338 - 350
摘 要：In this study,the low frequency electromagnetic casting（LFEC） technology was adopted to fabricate 2195 Al-Li alloy.The microstructure and solid solubility of as-cast 2195 alloys,as well as the second phase precipitation and tensile properties after aging,were investiagated and compared with the counterpart direct chill casting 2195 alloy.Our results indicate that LFEC can significantly improve the microstructure and metallurgical quality of as-cast alloy,and increase the number density of θ’（Al2 Cu） and T1（Al2 CuLi） phases during aging treatment due to the enhanced solubilities of alloying elements.The tensile properties of 2195 aged alloy cast by LFEC were hence improved evidently.
Fu-Yue Wang，Xiang-Jie Wang，Wei Sun，Fang Yu，Jian-Zhong Cui
Key Lab of Electromagnetic Processing of Materials,Ministry of Education , Northeastern University
摘 要：In this study,the low frequency electromagnetic casting（LFEC） technology was adopted to fabricate 2195 Al-Li alloy.The microstructure and solid solubility of as-cast 2195 alloys,as well as the second phase precipitation and tensile properties after aging,were investiagated and compared with the counterpart direct chill casting 2195 alloy.Our results indicate that LFEC can significantly improve the microstructure and metallurgical quality of as-cast alloy,and increase the number density of θ’（Al2 Cu） and T1（Al2 CuLi） phases during aging treatment due to the enhanced solubilities of alloying elements.The tensile properties of 2195 aged alloy cast by LFEC were hence improved evidently.
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