ISSN：1003-8620

CN：42-1243/TF

Governed by: CITIC Pacific Special Steel Group Co., LTD

Sponsored by: Daye Special Steel Co., LTD.

Special Steel ›› 2006, Vol. 27 ›› Issue (1): 24-27.

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Effect of Pre-Deformation on ε-Cu Precipitation Behavior in Ultra-Low-Carbon-Bainitic Steel

Zhang    Yinyan1,Tang    Jinquan2,Guo    Aimin2 , Yuan    Zexil1   

  1. 1 Hubei Province Key Laboratory of Ceramics and Refractories,Wuhan University of Science and Technology,Wuhan 430081;
    2 Wuhan Iron and Steel Co,Wuhan 430080
  • Received:2005-08-30 Online:2006-02-01 Published:2006-02-01

预变形对超低碳贝氏体钢中ε-Cu析出行为的影响

张胤彦¹, 唐金权², 郭爱民², 袁泽喜¹   

  1. 1武汉科技大学高温陶瓷与耐火材料湖北省重点实验室，武汉430081;
    2武汉钢铁(集团)公司，武汉430080
  • 通讯作者: 袁泽喜，教授，武汉科技大学192信箱，武汉430081
  • 作者简介:张胤彦(1981-),女，硕士研究生，从事冶金材料研究

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Abstract: 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,0.0013~0.0023B containing 0.98~2.90Cu at temperature 450 ℃ and 550 ℃ for 1~104 min.The test result showed that the peak hardness of e-Cu precipitation dynamic curves occurred during ageing of steel; as the steel was pre-deformed the time occurred peak hardness of e-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 ℃

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,0.025～0.029Nb,0.011～0.019Ti,0.0013～0.0023B)在450℃和 550 ℃处理1~10⁴ min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，e-Cu析出动力学曲线出 现硬度峰值，当经过预变形处理后，e-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

关键词: 超低碳贝氏体钢, 时效,e-Cu沉淀&, ,预变形

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