V、B摩尔比对Al-V-B中间合金组织和晶粒细化性能的影响
Effects of V and B Atomic Ratio on Microstructure and Grain Refinement Perfor-mance of Al-V-B Master Alloy
倪晓红 1项亿 1陈罡 1王俊杰 1申延平 1张云虎 1郑红星 1宋长江 1翟启杰1
作者信息
- 1. 上海大学材料科学与工程学院先进凝固技术中心,上海 201900
- 折叠
摘要
为研究Al-V-B中间合金对Al-Si合金细化效果的影响规律,制备了 5种不同V、B摩尔比的Al-V-B中间合金,研究了 V、B摩尔比对Al-V-B中间合金组织组成和晶粒细化性能的影响.结果表明,随着V、B摩尔比降低,Al-V-B中间合金中细小的VB2颗粒数量显著增加,粗大的Al3V颗粒数量逐渐减少,当V、B摩尔比小于1/2时,出现AlB2相.此外,随着V、B摩尔比降低,Al-V-B中间合金的晶粒细化性能也得到提升.当V、B摩尔比为1∶8时,Al-V-B中间合金的晶粒细化效果最佳.
Abstract
In order to investigate influence law of V and B atomic ratio on the refinement effect of Al-V-B master alloy,Al-V-B master alloys with different V and B atomic ratios were prepared.The influence of V and B atomic ratio on the microstructure composition and grain refinement performance of Al-V-B master alloy was analyzed.The results indicate that the amounts of small VB2 particles are significantly increased as V and B atomic ratio decreases,while the quantities of coarse Al3V particles are gradually reduced in Al-V-B master alloy.AlB2 phase appears with the V and B atomic ratio less than 1∶2.In addition,as the V and B atomic ratio declines,the grain refinement performance of Al-V-B master alloy is also enhanced,which reaches the optimal with the V and B atomic ratio of 1∶8.
关键词
Al-Si合金/晶粒细化/Al-V-B中间合金Key words
Al-Si Alloy/Grain Refinement/Al-V-B Master Alloy引用本文复制引用
出版年
2024
NETL
NSTL
万方数据