TiAl合金板材轧制研究现状

陈玉勇, 叶园, 孙剑飞

Present Status for Rolling TiAl Alloy Sheet

CHEN Yuyong, YE Yuan, SUN Jianfei

表1 国内TiAl合金轧板名义成分、轧制方法、尺寸及力学性能[19,21,23,24,27,29,30,33~36]

Table 1 Nominal composition, rolling method, dimension, and mechanical properties of TiAl alloy sheet in China[19,21,23,24,27,29,30,33-36]

Composition Method Size / mm3 Room temperature 800oC Institution σ0.2 σb δ σ0.2 σb δ MPa MPa % MPa MPa % Ti-44Al-8Nb-0.2W-0.2B-Y[19] IM rolling 410 × 70 × 2.1 962 1174 1.01 681 777 - HIT Ti-43Al-9V-0.2Y[23] IM rolling 875 × 70 × 2.6 684 826 1.4 - 391 67.5 HIT Ti-44Al-5V-1Cr[21] IM rolling 300 × 200 × 2.7 - 725 2.0 - - - YSU Ti-45Al-8.5Nb-0.2W-0.2B- IM rolling 600 × 75 × 3 911 1053 1.8 556 745 93.6 USTB 0.03Y[24] TLA γ-TiAl[27] PM rolling 370 × 220 × 2 608 668 2.56 - - - IMR Ti-45Al-7Nb-0.3W[29] PM rolling Thickness 4 mm 582 621 2.0 460 650 7.2 CSU Ti-43Al-9V-0.3Y[30] PM rolling - 541 650 3.0 371 366 58 HIT Ti-45Al-8.5Nb-(Nb, W, B)[33] Direct-rolling 350 × 90 × 3.5 646 691 0.5 529 539 0.7 USTB Ti-44.45Al-3.80Nb-1.01Mo- Direct-rolling 510 × 105 × 1.4 348 571 1.78 411 460 16.76 USTB 0.29Si-0.14B[34] Ti-45Al-8.5Nb-0.2W-0.2B- Direct-rolling 300 × 80 × 3 - 858 0.26 573 744 6.0 USTB 0.2Y[35] Ti-44Al-5Nb-1Mo-2V-0.2B[36] Direct-rolling 330 × 115 × 3 - - - - 553 32 NEU