基于不同 α / β 团簇式比例的Ti-Al-V合金的铸态组织和力学性能

朱智浩, 陈志鹏, 刘田雨, 张爽, 董闯, 王清

Microstructure and Mechanical Properties of As-Cast Ti-Al-V Alloys with Different Proportion of α / β Clusters

ZHU Zhihao, CHEN Zhipeng, LIU Tianyu, ZHANG Shuang, DONG Chuang, WANG Qing

表1 不同β团簇式个数n设计的合金化学成分以及Mo和Al当量、估算的液固两相区

Table 1 Designed compositions following different numbers of β units (n) and their Al- and Mo-equivalents and solidification ranges

Material code n Composition / (mass fraction, %) [Mo]eq [Al]eq ∆TL-S / oC n0 0 Ti-7.45Al 0.0 7.5 4.9 n1 1 Ti-7.16Al-0.82V 0.6 7.2 4.9 n2 2 Ti-6.87Al-1.62V 1.1 6.9 4.7 n3 3 Ti-6.60Al-2.41V 1.4 6.6 4.5 n4 4 Ti-6.32Al-3.19V 2.1 6.3 9.4 n5 5 Ti-6.05Al-3.94V 2.6 6.1 13.3 n7 7 Ti-5.53Al-5.45V 3.6 5.5 20.7 n8 8 Ti-5.28Al-6.14V 4.1 5.3 24.3 n12 12 Ti-4.30Al-8.87V 5.9 4.3 31.8 n17 17 Ti-3.19Al-12.03V 8.0 3.1 35.1