基于<strong>Ti-6Al-4V</strong>团簇式设计的超高强<strong>Ti-Al-V-Mo-Nb-Zr</strong>合金

基于Ti-6Al-4V团簇式设计的超高强Ti-Al-V-Mo-Nb-Zr合金

陈志鹏, 朱智浩, 宋梦凡, 张爽, 刘田雨, 董闯

An Ultra-high-strength Ti-Al-V-Mo-Nb-Zr Alloy Designed from Ti-6Al-4V Cluster Formula

CHEN Zhipeng, ZHU Zhihao, SONG Mengfan, ZHANG Shuang, LIU Tianyu, DONG Chuang

表1 Ti-6Al-4V和Ti-Al-V-Mo-Nb-Zr团簇式、质量百分比、当量以及估算的固液区间

Table1 Cluster formulas, compositions, Mo- and Al- equivalents, and solidification ranges of Ti-6Al-4V and Ti-Al-V-Mo-Nb-Zr alloys

Alloy	Composition formula	Composition / %, mass fraction	^a[Mo]_eq	^b[Al]_eq	^cΔT_L-S / ℃
Ti-6Al-4V	12[Al-Ti₁₂](AlTi₂)+5[Al-Ti₁₄](V₂Ti)	Ti_90.01Al_6.05V_3.94	2.7	6.0	13.3
Ti2	12[Al-Ti₁₂](AlTi₂)+5[Al-Ti_13.4Zr_0.6](AlV_1.2Mo_0.6Nb_0.2)	Ti_85.7Al_7.0Mo_2.2Nb_0.7V_2.3Zr_2.1	3.94	7.3	10.9
Ti4	12[Al-Ti₁₂](AlTi₂)+5[Al-Ti₁₃Zr₁](AlV_1.2Mo_0.6Nb_0.2)	Ti_84.4Al_6.9Mo_2.2Nb_0.7V_2.3Zr_3.5	3.91	7.5	18.3
Ti6	12[Al-Ti₁₂](AlTi₂)+5[Al-Ti_12.4Zr_1.6](AlV_1.2Mo_0.6Nb_0.2)	Ti_82.4Al_6.9Mo_2.2Nb_0.7V_2.3Zr_5.5	3.88	7.8	24.3
Ti7	12[Al-Ti₁₂](AlTi₂)+5[Al-Ti₁₂Zr₂](AlV_1.2Mo_0.6Nb_0.2)	Ti_81.3Al_6.8Mo_2.1Nb_0.7V_2.3Zr_6.8	3.85	8.0	26.6
Ti9	12[Al-Ti₁₂](AlTi₂)+5[Al-Ti_11.4Zr_2.6](AlV_1.2Mo_0.6Nb_0.2)	Ti_79.4Al_6.8Mo_2.1Nb_0.7V_2.3Zr_8.7	3.81	8.2	32.5
Ti10	12[Al-Ti₁₂](AlTi₂)+5[Al-Ti₁₁Zr₃](AlV_1.2Mo_0.6Nb_0.2)	Ti_78.3Al_6.7Mo_2.1Nb_0.7V_2.2Zr_10.0	3.79	8.4	34.8