文献类型：期刊文献

英文题名：Preparation of CaB₆-Reinforced Al/Al-Si Composites and Study of the Comprehensive Properties

作者：Liu, Jie[1,2];Cui, Xiaoli[1,2];Wang, Yan[1,2];Liu, Houyun[1];Li, Xinghui[1];Xu, Weiting[1];Wang, Yongxiao[1];Li, Hui[1];Cui, Hongwei[1];Feng, Rui[1];Pan, Yaokun[1];Liu, Shiying[3];Wang, Jun[3]

机构：[1]Shandong Univ Technol, Dept Mat Sci & Engn, Zibo 255000, Shandong, Peoples R China;[2]Guangdong Ocean Univ, Sch Mat Sci & Engn, Yangjiang 529500, Guangdong, Peoples R China;[3]Binzhou Bohai Piston Co Ltd, Binzhou 256600, Shandong, Peoples R China

年份：2024

外文期刊名：INTERNATIONAL JOURNAL OF METALCASTING

收录：SCI-EXPANDED(收录号：WOS:001230121900001)、、EI(收录号：20242216180550)、Scopus(收录号：2-s2.0-86000376431)、WOS

基金：The authors would like to acknowledgment the financial support of the National Nature Science Foundation of China (Nos. 52274384, 51804189), the National Postdoctoral Foundation General Project of China (2019M662404) and the Shandong Natural Science Doctor Foundation (ZR2017BEM004).

语种：英文

外文关键词：hypereutectic Al-Si alloys; CaB6 particles; in situ synthesis; corrosion resistance

外文摘要：In this paper, Al-CaB6 alloys were prepared by in situ melt reaction. The CaB6 particles through in situ growth are cubic with a regular shape, evenly distributed in the Al matrix. By edge-to-edge matching model's calculation, mismatch between CaB6 particles and alpha-Al was similar to 2.34%, which is less than 6%, so CaB6 can serve as the core of alpha-Al nucleation. When the amount of CaB6 addition reaches 6 wt.%, hardness of the Al-CaB6 alloy reached 34.4 HV. Besides, CaB6-particle reinforced hypereutectic Al-Si composites were prepared, and the positive influence of CaB6 particles on microstructure and properties of hypereutectic Al-Si composites was studied. The CaB6 particles show significant effect on the modification of primary silicon. Owing to the addition of CaB6 particles, the hardness of hypereutectic Al-Si alloys increased and the hardness of Al-18Si-CaB6 reached 95.1 HV. The electrochemical test of the manufactured composites revealed that the corrosion resistance of Al-18Si-CaB6 composites improved as the amount of CaB6 particle content increased. This work serves as a reference for the investigation of Al and Al-Si composites reinforced with ceramic particles.