钢包添加纳米TiN颗粒优化Q345C钢生产工艺的试验
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摘要
为优化Q345C钢生产工艺,在不改变Q345B钢原有炼钢和轧钢工艺的前提下,在Q345B钢包中进行了添加纳米TiN颗粒生产Q345C钢的试验,研究了不同纳米TiN颗粒添加量对Q345钢力学性能和金相组织的影响。结果表明:在Q345B钢包添加质量分数0.05%纳米TiN颗粒生产的试验钢力学性能可以满足Q345C钢要求,提高Q345C钢轧钢生产效率20%以上。添加质量分数0.05%纳米TiN颗粒试验钢晶粒度为8~10级,晶粒有一定程度的细化,TiN颗粒在Q345钢中以纯物质状态存在,在钢中起到了一定程度的异质形核和钉扎作用。
In order to optimizate Q345 Csteel production process,the experiment has been carried out on Q345 Csteel by adding TiN nanoparticle in Q345 Bladles without changing the process of steelmaking and rolling.The effect of different TiN nanoparticle additions on mechanical properties and microstructure of Q345 steel was researched.The results showed that the mechanical properties of Q345 Btest steel could meet the requirements of Q345 Csteel with 0.05 %(mass fraction)TiN nanoparticle addition,and the efficiency of Q345 Csteel rolling production was increased by 20 %with the test process.The grain size of the test steel was refined slightly and reached to between Class 8and Class 10.The TiN nanoparticlethe added in the Q345 steel existed in the form of pure substance in the steel and play the role of heterogeneity nucleation and nail in steel.
In order to optimizate Q345 Csteel production process,the experiment has been carried out on Q345 Csteel by adding TiN nanoparticle in Q345 Bladles without changing the process of steelmaking and rolling.The effect of different TiN nanoparticle additions on mechanical properties and microstructure of Q345 steel was researched.The results showed that the mechanical properties of Q345 Btest steel could meet the requirements of Q345 Csteel with 0.05 %(mass fraction)TiN nanoparticle addition,and the efficiency of Q345 Csteel rolling production was increased by 20 %with the test process.The grain size of the test steel was refined slightly and reached to between Class 8and Class 10.The TiN nanoparticlethe added in the Q345 steel existed in the form of pure substance in the steel and play the role of heterogeneity nucleation and nail in steel.
引文
[1]翁宇庆.超细晶钢理论及技术进展[J].钢铁,2005(3):1-8.
[2]高晓龙,夏天东,王晓军,等.金属晶粒细化方法的研究现状[J].金属功能材料,2009(6):60-65.
[3]李海,刘志义,雷毅,等.ZrC粒子对低碳钢晶粒细化及力学性能的影响[J].中南工业大学学报,2002(1):71-73.
[4]李胜利,颜秉宇,曹震,等.添加ZrO2纳米粒子对碳钢铸造和热轧后晶粒细化作用[J].辽宁科技大学学报,2012(4):385-387.
[5]Gregg J M,Bhadeshia H K D H.Solid-state nucleation of acicular ferrite on minerals added to molten steel[J].Acta Mater,1997,45(2):739-748.
[6]王国承,黄浪,谢君阳,等.添加Al2O3纳米粉对中空钢55SiMnMo力学性能与夹杂物的影响[J].特殊钢,2008(1):19-21.
[7]牛建钢,王宝军,王翠表,等.第一性原理计算TiN(111)/BN/TiN(111)界面的电子结构、成键特性和结合强度[J].金属学报,2009,45(10):1185-1189.
[8]于仁红,蒋明学.TiN的性质、用途及其粉末制备技术[J].耐火材料,2005,39(5):386-389.
[9]雍岐龙.钢铁材料中的第二相[M].北京:冶金工业出版社,2006.
[10]雍岐龙,孙新军,郑磊,等.钢铁材料中第二相的作用[J].科技创新导报,2009(8):2-3.
[11]王国承,谢君阳,鲍宇飞,等.添加纳米TiN颗粒对55SiMnMo钢性能的影响[J].炼钢,2010,26(5):60-64.
[2]高晓龙,夏天东,王晓军,等.金属晶粒细化方法的研究现状[J].金属功能材料,2009(6):60-65.
[3]李海,刘志义,雷毅,等.ZrC粒子对低碳钢晶粒细化及力学性能的影响[J].中南工业大学学报,2002(1):71-73.
[4]李胜利,颜秉宇,曹震,等.添加ZrO2纳米粒子对碳钢铸造和热轧后晶粒细化作用[J].辽宁科技大学学报,2012(4):385-387.
[5]Gregg J M,Bhadeshia H K D H.Solid-state nucleation of acicular ferrite on minerals added to molten steel[J].Acta Mater,1997,45(2):739-748.
[6]王国承,黄浪,谢君阳,等.添加Al2O3纳米粉对中空钢55SiMnMo力学性能与夹杂物的影响[J].特殊钢,2008(1):19-21.
[7]牛建钢,王宝军,王翠表,等.第一性原理计算TiN(111)/BN/TiN(111)界面的电子结构、成键特性和结合强度[J].金属学报,2009,45(10):1185-1189.
[8]于仁红,蒋明学.TiN的性质、用途及其粉末制备技术[J].耐火材料,2005,39(5):386-389.
[9]雍岐龙.钢铁材料中的第二相[M].北京:冶金工业出版社,2006.
[10]雍岐龙,孙新军,郑磊,等.钢铁材料中第二相的作用[J].科技创新导报,2009(8):2-3.
[11]王国承,谢君阳,鲍宇飞,等.添加纳米TiN颗粒对55SiMnMo钢性能的影响[J].炼钢,2010,26(5):60-64.