高级别船板钢生产过程中夹杂物的演变规律

doi:10.13228/j.boyuan.issn0449-749x.20180168

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摘要通过采用扫描电镜对船板钢F40中的夹杂物进行全流程系统分析，研究了冶炼过程中夹杂物的形成和演变规律，并采用夹杂物的弹性模量概念对其在轧制过程中的变形机理进行解释。结果表明，LF出站后钢中的主要夹杂物为MgO-Al2O3复合夹杂，在钙处理后夹杂物逐渐向低熔点的CaO-Al2O3-MgO-CaS系夹杂转变。在轧制过程中，高弹性模量的夹杂物，在轧制中相对塑性变形低。热力学计算表明，当船板钢中的w（[Als]）为0.02%～0.04%时，为使夹杂物改性完全，钙处理后钢液中的w（[Ca]）应控制在0.001 8%～0.002 8%。为避免钙处理后生成CaS，可通过控制w（[S]）在0.002 1%以内，减小其对浇注过程和钢性能的不利影响。

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	周宇涛
	杨树峰
	李京社
	梁雪

关键词 ：船板钢, 夹杂物, 钙处理, 钙铝酸盐, 轧制

Abstract：Based on the systematic sampling and the scanning electron microscopy （SEM） analysis on inclusions， the formation and the evolution of inclusions in ship plate steel F40 during steelmaking process were studied by industrial trials， and the Young’s modulus was used to evaluate the deformability of inclusions during the rolling process. The results show that the main inclusions after LF refining are compound MgO-Al2O3 inclusions， and inclusions gradually transform into low-melting CaO-Al2O3-MgO-CaS inclusions after the calcium treatment. The inclusion with a high Young’s modulus have a relatively low plastic deformation during the rolling process. The thermodynamic calculation results show that w（[Als]） of the ship steel is controlled from 0.02% to 0.04%， w（[Ca]） in the molten steel after calcium treatment could be controlled in 0.001 8%～0.002 8%. To avoid the formation of CaS inclusions after the calcium treatment， w（[S]） should be controlled to about 0.002 1% to reduce its adverse effect on the casting process and steel properties.

收稿日期: 2018-04-24 出版日期: 2019-02-22

PACS:

TF769

引用本文:

周宇涛，杨树峰，李京社，梁雪. 高级别船板钢生产过程中夹杂物的演变规律[J]. , 2019, 54(1): 33-42. ZHOU Yu-tao，YANG Shu-feng，LI Jing-she，LIANG Xue. Inclusions evolution of high-grade ship plate steel in practical production processes. Iron and Steel, 2019, 54(1): 33-42.

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[1]	杨才福，苏航.高性能船舶及海洋工程用钢的开发[J].钢铁, 2012, 47(12):1-8
[1]	杨才福，苏航.高性能船舶及海洋工程用钢的开发[J].钢铁, 2012, 47(12):1-8
[2]	王国栋.近年我国轧制技术的发展、现状和前景[J].轧钢, 2017, 34(1):1-8
[2]	王国栋.近年我国轧制技术的发展、现状和前景[J].轧钢, 2017, 34(1):1-8
[3]	王小勇，狄国标，杨永达，等.铌微合金化高强船板钢向性能不合原因分析[J].钢铁, 2015, 50(10):85-89
[3]	王小勇，狄国标，杨永达，等.铌微合金化高强船板钢向性能不合原因分析[J].钢铁, 2015, 50(10):85-89
[4]	翁宇庆，陈蕴博，刘玠，等．特殊钢在先进装备制造业应用中的战略研究[M]．北京：冶金工业出版社，2012．（WEN Yu-qing，CHEN Yun-bo，LIU-Jie，et al．Research on strategic application of special steel in advanced equipment manufacturing[M]．Beijing：Press of Metallurgy Industry，2012．）
[4]	翁宇庆，陈蕴博，刘玠，等．特殊钢在先进装备制造业应用中的战略研究[M]．北京：冶金工业出版社，2012．（WEN Yu-qing，CHEN Yun-bo，LIU-Jie，et al．Research on strategic application of special steel in advanced equipment manufacturing[M]．Beijing：Press of Metallurgy Industry，2012．）
[5]	贺道中，周宇涛.高强度船板钢钙处理热力学计算分析-夹杂物变质研究和应用[J].特殊钢, 2017, 38(3):23-27
[5]	贺道中，周宇涛.高强度船板钢钙处理热力学计算分析-夹杂物变质研究和应用[J].特殊钢, 2017, 38(3):23-27
[6]	郝鑫，王新华，杨光维，等.高级别船板钢炉外精炼过程洁净度研究[J].北京科技大学学报, 2014, 36(11):1471-1475
[6]	郝鑫，王新华，杨光维，等.高级别船板钢炉外精炼过程洁净度研究[J].北京科技大学学报, 2014, 36(11):1471-1475
[7]	吴华杰，元鹏飞，岳峰.生产船板钢洁净度[J].北京科技大学学报, 2011, 33(增刊):131-136
[7]	吴华杰，元鹏飞，岳峰.生产船板钢洁净度[J].北京科技大学学报, 2011, 33(增刊):131-136
[8]	杨俊，杜江，陈波涛，等.超低氧精炼时钙处理对氧化物夹杂的影响[J].钢铁, 2015, 50(1):19-26
[8]	杨俊，杜江，陈波涛，等.超低氧精炼时钙处理对氧化物夹杂的影响[J].钢铁, 2015, 50(1):19-26
[9]	Wakoh M，Sawai T，Mizoguchi S.Effect of S content on the MnS precipitation in steel with oxide nuclei[J].ISIJ International, 1996, 36(8):1014-1021
[9]	Wakoh M，Sawai T，Mizoguchi S.Effect of S content on the MnS precipitation in steel with oxide nuclei[J].ISIJ International, 1996, 36(8):1014-1021
[10]	黄希祜．钢铁冶金原理[M]．北京：冶金工业出版社，2006．（HUANG Xi-hu.Metallurgy theory of iron and steel[M]．Beijing：Press of Metallurgy Industry，2006．）
[10]	黄希祜．钢铁冶金原理[M]．北京：冶金工业出版社，2006．（HUANG Xi-hu.Metallurgy theory of iron and steel[M]．Beijing：Press of Metallurgy Industry，2006．）
[11]	Yang S F, Wang Q Q, Zhang L F, et al.Formation and modification of MgO?Al2O3-Based inclusions in alloy steels[J].Metallurgical and Materials Transactions: B, 2012, 43(4):731-750
[11]	Yang S F, Wang Q Q, Zhang L F, et al.Formation and modification of MgO?Al2O3-Based inclusions in alloy steels[J].Metallurgical and Materials Transactions: B, 2012, 43(4):731-750
[12]	杨树峰．铝脱氧合金钢中MgO?Al2O3夹杂物控制研究[D]．北京：北京科技大学，2010．（YANG Shu-feng．Study on the control of MgO?Al2O3 inclusion in the alloy steel skilled by Al[D]．Beijing：University of Science and Technology Beijing，2010．）
[12]	杨树峰．铝脱氧合金钢中MgO?Al2O3夹杂物控制研究[D]．北京：北京科技大学，2010．（YANG Shu-feng．Study on the control of MgO?Al2O3 inclusion in the alloy steel skilled by Al[D]．Beijing：University of Science and Technology Beijing，2010．）
[13]	陈家祥．炼钢常用图表数据手册[M]．北京：冶金工业出版社，2010．（CHEN Jia-xiang．Common charts and databook for steelmaking[M]．Beijing：Press of Metallurgy Industry，2010．）
[13]	陈家祥．炼钢常用图表数据手册[M]．北京：冶金工业出版社，2010．（CHEN Jia-xiang．Common charts and databook for steelmaking[M]．Beijing：Press of Metallurgy Industry，2010．）
[14]	Yang G W, Wang X H.Inclusion evolution after calcium addition in low carbon Al-killed steel with ultra low sulfur content[J].ISIJ International, 2015, 55(1):126-133
[14]	Yang G W, Wang X H.Inclusion evolution after calcium addition in low carbon Al-killed steel with ultra low sulfur content[J].ISIJ International, 2015, 55(1):126-133
[15]	Xu J F, Huang F X, Wang X H.Formation mechanism of CaS-Al2O3 inclusions in low sulfur Al-killed steel after calcium treatment[J].Metallurgical and Materials Transactions: B, 2017, 47(2):1217-1227
[15]	Xu J F, Huang F X, Wang X H.Formation mechanism of CaS-Al2O3 inclusions in low sulfur Al-killed steel after calcium treatment[J].Metallurgical and Materials Transactions: B, 2017, 47(2):1217-1227
[16]	王新华，陈斌，姜敏，等.渣-钢反应对高强度合金结构钢中生成较低熔点非金属夹杂物的影响[J].钢铁, 2008, 43(12):28-32
[16]	王新华，陈斌，姜敏，等.渣-钢反应对高强度合金结构钢中生成较低熔点非金属夹杂物的影响[J].钢铁, 2008, 43(12):28-32
[17]	Gladman T.The Physical Metallurgy of Microalloyed Steels[M]. London: The Institute of Materials, 1997.
[17]	Gladman T.The Physical Metallurgy of Microalloyed Steels[M]. London: The Institute of Materials, 1997.
[18]	潘涛，杨志刚，白秉哲，等.钢中夹杂物与奥氏体基体热膨胀系数差异导致的热应力和应变能研究[J].金属学报, 2003, 39(10):1037-1042
[18]	潘涛，杨志刚，白秉哲，等.钢中夹杂物与奥氏体基体热膨胀系数差异导致的热应力和应变能研究[J].金属学报, 2003, 39(10):1037-1042
[19]	Hillig W B.A methodology for estimating the mechanical properties of oxides at high temperatures[J].Journal of the American Ceramic Society, 1993, 76(1):129-138
[19]	Hillig W B.A methodology for estimating the mechanical properties of oxides at high temperatures[J].Journal of the American Ceramic Society, 1993, 76(1):129-138
[20]	Cicutti C E, Madias J, Gonzatez J C.Control of microinclusions in calcium treated aluminium killed steels[J].Ironmaking and Steelmaking, 1997, 24(2):155-159
[20]	Cicutti C E, Madias J, Gonzatez J C.Control of microinclusions in calcium treated aluminium killed steels[J].Ironmaking and Steelmaking, 1997, 24(2):155-159
[21]	Ashizuka M, Aimoto Y, Okuno T.Mechanical properties of sintered silicate srystals[J].Journal of the Ceramic Society of Japan, 2010, 97(5):544-548
[21]	Ashizuka M, Aimoto Y, Okuno T.Mechanical properties of sintered silicate srystals[J].Journal of the Ceramic Society of Japan, 2010, 97(5):544-548
[22]	Zhang L F, Guo C G, YangW, et al.Deformability of oxide inclusions in tire cord steels[J].Metallurgical and Materials Transactions: B, 2018, 49(2):803-811
[22]	Zhang L F, Guo C G, YangW, et al.Deformability of oxide inclusions in tire cord steels[J].Metallurgical and Materials Transactions: B, 2018, 49(2):803-811