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添加第三组元调控 Al-Bi 偏晶合金 凝固组织研究进展
Research Progress on Controlling the Solidification Microstructure of Al-Bi Monotectic Alloy by Adding Third Elements
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- DOI:
- 作者:
- 杨翠翠 1 ，范玉虎 2 ，王 帅 3 ，余申卫 2 ，贡诗睿 1 ，岳锦岩 1 ，何一诺 1 ，吕思雨 1 ， 张国宇 1 ，刘志伟 1 ，董其娟 4 ，魏作山 4
YANG Cuicui 1 , FAN Yuhu 2 , WANG Shuai 3 , YU Shenwei 2 , GONG Shirui 1 , YUE Jinyan 1 , HE Yinuo 1
- 作者单位:
- 1. 西安交通大学 材料科学与工程学院金属材料强度国家重点实验室，陕西 西安 710049；2. 中国船舶集团有限公司第 十二研究所，陕西 兴平 713102；3. 长安望江工业集团有限责任公司，重庆 401120；4. 山东省先进铝基材料与技术重点 实验室滨州魏桥国科高等技术研究院，山东 滨州 256606
1. State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China; 2. CSSC No.12 Research Institute, Xingping 713102, China; 3. ChanganWangjiang Industry Group Co., Ltd., Chongqing 401120, China; 4. Binzhou Institute of Technology, Shandong Key Laboratory of Advanced Aluminium Materials and Technology, Binzhou 256606, China
- 关键词:
- Al-Bi 偏晶合金；液 - 液相分离；第三组元；凝固组织调控；组织细化；组织均匀化
Al-Bi monotectic alloy; liquid liquid phase separation; third elements; controlling solidification microstructure; microstructural refinement; microstructural homogenization
- 摘要:
- Al-Bi 偏晶合金熔体冷却过程中由均一的液相经液 - 液相转变为两互不混溶的液相， 在常规重力铸造条件下极易形成宏观偏析严重的凝固组织，极大限制其工业应用，因此有必要对 Al-Bi 偏晶合金凝固组织进行有效调控 ( 细化和均匀化 ) 。 近年来，研究者对如何改善 Al-Bi 等偏晶合金偏析组织开展了大量研究，如快速凝固、施加外场和添加第三组元等，其中添加第三组元最有可能实现其低成本 / 规模化制备。 基于此，本文主要综述了 Al-Bi 偏晶合金添加第三组元 ( 合金元素、 Al-(Ti)-(B) 体系、陶瓷颗粒 ) 的相关研究进展，其中添加含陶瓷颗粒的第三组元能够有效细化和均匀化富Bi 相，获得弥散型 Al-Bi 基偏晶合金，该研究对于实现其大规模工业应用具有重大意义。During the cooling process of an Al-Bi monotectic alloy melt, the homogeneous liquid phase transforms into two immiscible liquid phases. Under conventional gravity casting conditions, a solidification microstructure with severe macroscopic segregation easily forms in Al-Bi monotectic alloys, which limits their industrial application. Therefore, it is necessary to effectively control the solidification microstructure (refinement and homogenization) of Al-Bi monotectic alloys. In recent years, researchers have conducted extensive studies on how to improve or avoid the segregation microstructure of Al-Bi and other monotectic alloys, such as rapid solidification, the application of external fields and the addition of third elements. Among them, the addition of third elements is most likely to achieve low-cost and scalable preparation of Al-Bi based monotectic alloys with fine and uniform microstructures. In this regard, this paper mainly reviews the research progress on the addition of third elements, such as alloying elements, Al-(Ti)-(B) systems and ceramic particles, to Al-Bi based monotectic alloys. It can be concluded that the third element containing ceramic particles can effectively refine and homogenize the Bi rich phase in the Al-Bi based alloy. This related research is highly important forachieving large-scale industrial applications of Al-Bi based monotectic alloys.