| 应用超快冷工艺开发540MPa级C-Mn双相钢试验 |
| |
| 引用本文： | 刘彦春,董瑞峰,闫波,刘相华,王国栋.应用超快冷工艺开发540MPa级C-Mn双相钢试验[J].轧钢,2007,24(2):6-9. |
| |
| 作者姓名： | 刘彦春 董瑞峰 闫波 刘相华 王国栋 |
| |
| 作者单位： | 1. 东北大学轧制技术及连轧自动化国家重点实验室,辽宁,沈阳,110004
2. 包钢钢联股份有限公司薄板坯连铸连轧厂,内蒙古,包头,014010 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| |
| 摘 要： | 介绍了在包钢CSP线上应用超快速冷却工艺开发540MPa级热轧双相钢的工业试验概况;以0．07% C—1．20%Mn—0．15%Si钢为原料,采用薄板坯连铸连轧、层流冷却和超快速冷却工艺,得到厚6mm的热轧双相钢带;其微观组织为铁素体和马氏体,马氏体体积分数为12%,σb为555～565MPa,σs为335～355MPa,δ为31%～34%,σs/σb为0．59～0．64,n值为0．18,整卷带钢性能均匀,应用于重型卡车横梁,性能良好。
|
| 关 键 词： | 超快速冷却 热轧双相钢 薄板坯连铸连轧 屈强比 n值 |
| 文章编号： | 1003-9996(2007)02-0006-04 |
| 修稿时间： | 2006-12-12 |
Experiment of Development C-Mn Dual-phase Hot Strip Steel by Ultra-fast Cooling Technology on CSP Line |
| |
| LIU Yan-chun,DONG Rui-feng,YAN Bo,LIU Xiang-hua,WANG Guo-dong.Experiment of Development C-Mn Dual-phase Hot Strip Steel by Ultra-fast Cooling Technology on CSP Line[J].Steel Rolling,2007,24(2):6-9. |
| |
| Authors: | LIU Yan-chun DONG Rui-feng YAN Bo LIU Xiang-hua WANG Guo-dong |
| |
| Affiliation: | 1.The State Key Lab. of Rolling and Automation, Northeastern University,Shenyang 110004, 2. Baotou Steel( Union |
| |
| Abstract: | An industrial experiment of development 540MPa grade dual-phase hot strip steel by ultra-fast cooling technology on Baotou CSP line was introduced. The test dual-phase steel of 6mm thickness was produced by thin-slab continuous rolling and two stage cooling process,including of laminar and ultra-fast cooling; The mi- crostructures of the test dual-phase steel are ferrite and martensite, and the volume fraction of martensite is 12%. The mechanical properties of the test dual-phase steel are uniform with the tensile strength of 555- 565MPa, the yield strength of 335-355MPa, the total elongation of 31%-34%, the yield ratio of 0.59-0.64 and the n value of 0.18. The test dual-phase steel with good service performance has been used tentatively for making the beam and the tail-board of heave-duty truck. |
| |
| Keywords: | ultra-fast cooling dual-phase hot strip steel thin-slab continuous casting and rolling yield ratio nvalue |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
