钙处理工艺对耐腐蚀船板钢低温韧性的影响

吴战芳; 徐李军; 董富军; 仇圣桃; 李向阳

doi:10.7513/j.issn.1004-7638.2016.04.024

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钙处理工艺对耐腐蚀船板钢低温韧性的影响

doi: 10.7513/j.issn.1004-7638.2016.04.024

1. 钢铁研究总院连铸技术国家工程研究中心, 北京 100081;
2. 东北大学材料与冶金学院, 辽宁沈阳 110004;
3. 新余钢铁有限责任公司, 江西新余 338001;
4. 中国钢研科技集团有限公司, 北京 100081

详细信息

作者简介:
吴战芳(1988-),男,江西高安人,博士研究生,主要从事钢铁生产工艺优化基础研究工作

中图分类号: TF769
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- 文章访问数: 125
- HTML全文浏览量: 39
- PDF下载量: 2
- 被引次数: 0
出版历程
- 收稿日期: 2015-10-07
- 网络出版日期: 2016-08-28
- 刊出日期: 2016-08-28

Effect of Calcium Treatment on Low Temperature Toughness of Corrosion Resistant Steel

1. National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China;
2. School of materials and metallurgy, Northeastern University, Shenyang 110004, Liaoning, China;
3. Xinyu Iron and Steel Co., Ltd., Xinyu 338001, Jiangxi, China;
4. China Iron & Steel Research Institute Group, Beijing 100081, China

摘要

摘要: 针对高强度耐腐蚀船板钢的低温冲击韧性波动范围大,低温冲击韧性低这一生产中亟待解决的问题。研究了钙处理工艺对高强度耐腐蚀船板钢低温冲击性能的影响,与传统的钙处理工艺相比,改进后的钙处理工艺能较大提高试验钢的-20℃和-40℃的低温冲击性能。当夹杂物为球形钙铝酸盐+CaS的复合夹杂物且弥散分布时,试验钢的-20℃冲击功横向提高了24.6%,纵向提高了44.5%;-40℃冲击功横向提高了33.7%,纵向提高了32.7%。改进后的钙处理工艺,提高了钢水中[Ca]的收得率,使钙处理更充分,从而得到了低温冲击性能稳定且优良的试验钢板。
- 耐腐蚀船板钢 /
- 钙处理 /
- 冲击韧性 /
- 夹杂物
Abstract: In order to stabilize the low temperature toughness of corrosion resistant steel,effect of calcium treatment on low temperature toughness of corrosion resistant steel has been studied.The results show that compared with the traditional calcium treatment process,the modified calcium treatment process can greatly improve the low temperature impact properties of steel tested at the temperature of -20℃ and -40℃.When the inclusions are spherical calcium aluminate +CaS composite inclusions and dispersed,the test steel at -20℃ impact energy(transverse) was improved by 24.6%,and the value at -40℃ impact energy(transverse) was improved by 44.5%,and the impact values the sample along longitudinal direction was improved by 33.7% and 32.7% respectively.The modified calcium treatment technology can improve the absorption rate of[Ca] in the molten steel which makes it more effective and a steel plate of with satisfied low temperature impact toughness was obtained.
- corrosion resistant steel /
- calcium treatment /
- impact toughness /
- inclusions