原位自生2%TiB2 颗粒对2024Al增材制造合金组织和力学性能的影响

孙腾腾, 王洪泽, 吴一, 汪明亮, 王浩伟

Effect ofIn Situ 2%TiB2 Particles on Microstructure and Mechanical Properties of 2024Al Additive Manufacturing Alloy

SUN Tengteng, WANG Hongze, WU Yi, WANG Mingliang, WANG Haowei

表1 不同热处理后L-PBF成形2024Al合金和2024Al-2%TiB2合金的拉伸性能

Table 1 Mechanical properties of the 2024Al alloy and 2024Al-2%TiB2 alloy sample after different heat treatment

Condition Sample UTS / MPa YS / MPa EL / % Ref. L-PBF 2024Al 180 ± 3.2 0.3 ± 0.18 [14] 2024Al-2%TiB2 327 ± 6.02 225.6 ± 4.96 4.15 ± 0.2 [14] ST 2024Al 240.1 ± 2.6 236.8 ± 3.1 0.3 ± 0.1 This work 2024Al-2%TiB2 457.6 ± 3.6 339.5 ± 1.0 5.1 ± 0.3 This work T6 2024Al 261.3 ± 4.3 252.6 ± 2.5 0.3 ± 0.1 This work 2024Al ~427 ~345 ~5 [24,25] 2024Al-2%TiB2 458.2 ± 6.5 398.4 ± 2.7 3.4 ± 0.4 This work Annealed 2024Al ~220 ~95 ~12 [24,25]