超高强高韧化钢的研究进展和展望
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罗海文,沈国慧
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Progress and Perspective of Ultra-High Strength Steels Having High Toughness
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Haiwen LUO,Guohui SHEN
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| 表7 典型超高强装甲钢的化学成分及性能[91,92,93] |
| Table 7 Compositions and properties of typical ultra-high strength armor steels[91,92,93] |
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Steel | Composition (mass fraction / %) | YS MPa | UTS MPa | EL % | Hardness HB | Ak (20 ℃) J | Ref. |
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| C | Mn | Si | Cr | Ni | Mo | Other | Fe |
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| Armox 440T | 0.21 | 1.2 | 0.5 | 1.0 | 2.5 | 0.7 | 0.005B | Bal. | 1100 | 1500 | 10 | 420~480 | 45 (-40 ℃) | [91] | | Armox 500T | 0.32 | 1.2 | 0.27 | 1.0 | 1.8 | 0.7 | 0.005B | Bal. | 1250 | 1600 | 8 | 480~540 | 32 (-40 ℃) | [91] | | Armox 600T | 0.47 | 1.0 | 0.4 | 1.5 | 3.0 | 0.7 | 0.003B | Bal. | - | 2000 | 7 | 570~640 | 12 (-40 ℃) | [91] | | MIL-A46100 | 0.28 | 0.9 | 0.53 | 0.3 | 0.19 | 0.24 | 0.03Ti+0.18Cu | Bal. | 1050 | 1750 | 12 | 480~540 | 25 (-40 ℃) | [92] | | UHT 440 | 0.25 | 1.4 | 0.6 | 1.2 | 0.5 | 0.35 | 0.002B | Bal. | 1150 | 1450 | 14 | 420~480 | 16 (-40 ℃) | [93] | | HHA 500 | 0.32 | 0.8 | 0.5 | 1.2 | 0.5 | 0.3 | 0.002B | Bal. | 1350 | 1640 | 14 | 477~534 | 16 (-40 ℃) | [93] |
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