硫质量分数对Ti-Zr脱氧E36钢中夹杂物的影响

doi:10.3969/j.issn.1005-3026.2015.09.013

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (9): 1273-1277.DOI: 10.3969/j.issn.1005-3026.2015.09.013

硫质量分数对Ti-Zr脱氧E36钢中夹杂物的影响

战东平¹，唐磊¹，姜周华¹，张慧书²

(1. 东北大学材料与冶金学院，辽宁沈阳110819; 2. 辽宁科技学院冶金学院，辽宁本溪117004)

收稿日期:2014-08-06 修回日期:2014-08-06 出版日期:2015-09-15 发布日期:2015-09-14
通讯作者: 战东平
作者简介:战东平(1976-)，男，黑龙江鹤岗人，东北大学副教授; 姜周华(1963-)，男，浙江萧山人，东北大学教授，博士生导师.
基金资助:
国家高技术研究发展计划项目(2012AA03A503)；辽宁科技学院博士启动基金资助项目(1406B06).

Effect of Sulfur Mass Fraction on Inclusions in Steel E36 Deoxidized by Titanium and Zirconium

ZHAN Dong-ping¹， TANG Lei¹， JIANG Zhou-hua¹， ZHANG Hui-shu²

1． School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China； 2. School of Metallurgy， Liaoning Institute of Science and Technology， Benxi 117004， China.

Received:2014-08-06 Revised:2014-08-06 Online:2015-09-15 Published:2015-09-14
Contact: ZHAN Dong-ping
About author:-
Supported by:
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摘要/Abstract

摘要： 为明确钢中硫质量分数对Ti-Zr脱氧的E36船板钢中夹杂物的影响，在1873K下，在MoSi₂电阻炉上用70mm×100mm MgO坩埚开展了3炉E36钢炼钢实验.结果表明，Ti-Zr脱氧钢中夹杂物主要以含TiO_○x和ZrO₂成分的外围包裹MnS的球形夹杂物为主，典型夹杂物为Al₂O₃-TiO_○x-MnS，MgO-SiO₂-Al₂O₃，Al₂O₃-SiO₂-TiO_○x-ZrO₂，TiO_○x-SiO₂-Al₂O₃-MnS等.随着硫质量分数的增加，小于10μm的夹杂物所占比例逐渐提高到99.5%，夹杂物平均直径由1.7μm增大到2.3μm，夹杂物中平均硫质量分数和单个夹杂物中MnS所占的面积百分比均增加，w［S］=0.001 5%时面积比为0.15%，w［S］=0.011%时面积比达到0.72%.

关键词: 炼钢, 船板钢, 硫质量分数, 夹杂物, 脱氧

Abstract: In order to study the effect of sulfur mass fraction on inclusions in steel E36 deoxidized by titanium and zirconium， steelmaking experiments of three heats of steel E36 were done in a MoSi₂ furnace with 70mm×100mm MgO crucible at 1873K. The results showed that most of the inclusions in steel E36 deoxidized by titanium and zirconium are spherical inclusions of TiO_○x and ZrO₂ coated by MnS. The typical inclusions are Al₂O₃-TiO_○x-MnS， MgO-SiO₂-Al₂O₃， Al₂O₃-SiO₂-TiO_○x-ZrO₂ and TiO_○x-SiO₂-Al₂O₃-MnS. With the increasing of the sulfur mass fraction in steel， the inclusion percentages with the diameter less than 10μm increase to 99.5%; the average diameter of the inclusions reaches 2.3μm from 1.7μm; the sulfur mass fraction in the inclusions and the area of MnS in single inclusion are also bigger， the area is 0.15% when w［S］ is 0.001 5%， and it becomes 0.72% when w ［S］ is 0.011%.

Key words: steelmaking, ship plate steel, sulfur mass fraction, inclusion, deoxidation

中图分类号:

TG142.1

战东平，唐磊，姜周华，张慧书. 硫质量分数对Ti-Zr脱氧E36钢中夹杂物的影响[J]. 东北大学学报:自然科学版, 2015, 36(9): 1273-1277.

ZHAN Dong-ping， TANG Lei， JIANG Zhou-hua， ZHANG Hui-shu. Effect of Sulfur Mass Fraction on Inclusions in Steel E36 Deoxidized by Titanium and Zirconium[J]. Journal of Northeastern University:Natural Science, 2015, 36(9): 1273-1277.

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硫质量分数对Ti-Zr脱氧E36钢中夹杂物的影响

Effect of Sulfur Mass Fraction on Inclusions in Steel E36 Deoxidized by Titanium and Zirconium

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