On the basis of Al-V-B grain refining agent,rare earth element La was added,and Al-5V-3B-0.5La intermediate alloy was prepared by sintering method.The size,distribution,and morphology of nucleation particles in the re...On the basis of Al-V-B grain refining agent,rare earth element La was added,and Al-5V-3B-0.5La intermediate alloy was prepared by sintering method.The size,distribution,and morphology of nucleation particles in the refining agent at different sintering temperatures and the refining effect on A356 alloy were studied.The experimental results show that with the increase of sintering temperature,the addition of La element reduces the particle size of nucleated particles in the refining agent,makes the distribution more uniform,and has a good grain refinement effect on A356 alloy,with a significant reduction in grain size to around 184.62μm.It provides reference for the development of high-quality grain refining agents.展开更多
基金Funded by the Science and Technology Project of State Grid Shanghai Municipal Electric Power Company(No.5209A6240003)the 2024 Shanxi Provincial Major Science and Technology Special Project(No.202401050201003)。
文摘On the basis of Al-V-B grain refining agent,rare earth element La was added,and Al-5V-3B-0.5La intermediate alloy was prepared by sintering method.The size,distribution,and morphology of nucleation particles in the refining agent at different sintering temperatures and the refining effect on A356 alloy were studied.The experimental results show that with the increase of sintering temperature,the addition of La element reduces the particle size of nucleated particles in the refining agent,makes the distribution more uniform,and has a good grain refinement effect on A356 alloy,with a significant reduction in grain size to around 184.62μm.It provides reference for the development of high-quality grain refining agents.
