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研究了形变强化双相钢的低温冲击韧度。试验结果表明，形变强化双相钢经490℃回复90min后，低温冲击韧度显著改善。对试验数据进行了计算机拟合。
The low temperature impact toughness of deformation strengthened duplex steel was studied. The test results show that the ductility of dual-phase steel strengthened after 490 ℃ for 90min, low temperature impact toughness improved significantly. The experimental data were computerized.