一种新型高强奥氏体低密度钢的强塑性机理
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李夫顺, 刘志鹏, 丁灿灿, 胡斌, 罗海文
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Strengthening and Plastifying Mechanisms of a Novel High-Strength Low-Density Austenitic Steel
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LI Fushun, LIU Zhipeng, DING Cancan, HU Bin, LUO Haiwen
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表1 实验用钢经不同工艺处理后的拉伸力学性能
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Table 1 Tensile properties of the experimental steel subjected to different processing routes
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| Specimen | Processing route | YS MPa | SYS MPa·cm3·g-1 | UTS MPa | SUTS MPa·cm3·g-1 | TE % |
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| 35CR | CR by 35% | 1260 | 193.9 | 1405 | 216.2 | 20.4 | | 35CR-T | CR by 35% + aging at 450 oC for 1.5 h | 1375 | 211.5 | 1425 | 219.2 | 15.6 | | 75CR | CR by 75% | 1605 | 246.9 | 1855 | 285.4 | 5.4 | | 75CR-T | CR by 75% + aging at 450 oC for 1.5 h | 2085 | 320.8 | 2210 | 340.0 | 2.3 | | 75CR-AT | CR by 75% + annealing at 925 oC for 10 s + | 1365 | 210.0 | 1425 | 219.2 | 21.5 | | aging at 450 oC for 1.5 h | | | | | |
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