论文部分内容阅读
研究了不同固溶时效温度对10Ni3MnCuAl钢组织和力学性能的影响。结果表明:10Ni3MnCuAl钢在830~890℃固溶后可以获得优良的综合力学性能;在400~500℃时效时,随温度的升高,强度逐渐升高,塑韧性逐渐降低;500℃时效时硬化达到最大效果,强度达到峰值,塑韧性降到低谷;超过500℃后,随温度的升高,强度逐渐降低,塑韧性逐渐升高;与固溶态的钢相比,时效后钢的冲击韧度大幅下降,但与原始态的试验钢相比,同等硬度时,特别是过时效状态下,冲击韧度有了大幅提高。
The effect of different solution-aging temperature on microstructure and mechanical properties of 10Ni3MnCuAl steel was studied. The results show that 10Ni3MnCuAl steel can obtain excellent mechanical properties after solution treatment at 830 ~ 890 ℃. With the increase of temperature, the strength of 10Ni3MnCuAl steel gradually increases and the plasticity and ductility decreases gradually with aging at 400 ~ 500 ℃. When the temperature exceeds 500 ℃, the strength decreases gradually and the plasticity and toughness gradually increase. Compared with the solid solution steel, the impact toughness of the steel after aging However, compared with the original test steel, the impact toughness has been greatly improved under the same hardness, especially over-aged condition.