摘要
研究了10％预变形对0．98％～2．90％Cu超低碳贝氏体钢（％：0．042～0．045C，1．43～1．48Mn，0．30～0．33Si，0．70～0．73Ni，0．29～0．30Mo，0．625～0．029Nb，0．011～0．019Ti，0．0013～0．0023B）在450℃和550℃处理1～104rain的时效动力学行为的影响。试验结果表明，该钢在时效过程时，ε-Cu析出动力学曲线出现硬度峰值，当经过预变形处理后，ε-Cu析出峰值出现的时间显著降低，峰值高度明显增加。在450℃时效时，预变形的这一作用更为明显。
The effect of 10% pre-deformation on aging dynamic behavior of an ultra-low-carbon-bainitic steel 0..042 ～ 0.045C-1.43 ～ 1.48Mn-0.30 ～ 0.33Si-0.70 ～ 0.73Ni-0.29 ～ 0.30Mo-0.025 ～ 0.029Nb-0.011 ～0.019Ti, 0.001 3 ～ 0.002 3B containing 0.98 ～ 2.90Cu at temperature 450 ℃ and 550℃ for 1 ～ 104 min. The test results showed that the peak hardness of ε-Cu precipitation dynamic curves occurred during ageing of steel; as the steel was pre-deformed the time occurred peak hardness of ε-Cu precipitation obviously decreased and the value of peak hardness increased appreciably. The effect of pre-deformation was more evident for steel aging at 450℃.
出处
《特殊钢》
北大核心
2006年第1期24-27,共4页
Special Steel
关键词
超低碳贝氏体钢
时效
ε-Cu沉淀
预变形
Ultra-Low-Carbon-Bainitic Steel, Aging, ε-Cu Precipitation, Pre-Deformation
