Article(id=1199810034105418269, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199810028623458694, articleNumber=1009-5438(2022)06-0033-04, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1665590400000, receivedDateStr=2022-10-13, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1763986603522, onlineDateStr=2025-11-24, pubDate=1671897600000, pubDateStr=2022-12-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763986603522, onlineIssueDateStr=2025-11-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763986603522, creator=13701087609, updateTime=1763986603522, updator=13701087609, issue=Issue{id=1199810028623458694, tenantId=1146029695717560320, journalId=1185652524569653253, year='2022', volume='48', issue='6', pageStart='1', pageEnd='98', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763986602216, creator=13701087609, updateTime=1764034375076, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200010402584163079, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199810028623458694, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200010402584163080, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199810028623458694, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=33, endPage=36, ext={EN=ArticleExt(id=1199810034432573985, articleId=1199810034105418269, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Research and Development of Cold Rolled 980 MPa Martensitic Steel Product, columnId=1187340471245357385, journalTitle=Science & Technology of Baotou Steel, columnName=Quality of Variety and Experiment and Research, runingTitle=null, highlight=null, articleAbstract=
In this paper, the chemical composition and production process are designed according to the technical requirements of cold rolled 980 MPa martensitic steel as well as the study of its annealing process in laboratory is carried out with pilot-scale test platform. The study results showed that the yield strength was 750~940 MPa, tensile strength reached over 1 020 MPa and elongation was over 10% for the products of cold rolled 980 MPa martensitic steel produced with the same chemical composition and rolling process through adjusting the slow cooling temperature of annealing, which could meet technical requirements. The effect laws of slow cooling temperature on microstructure and properties of cold rolled 980 MPa martensitic steel are clear and definite as well as the soaking temperature is determined to be 800 ℃,slow cooling rate is determined to be 3 ℃/s, rapid cooling rate is determined to be 45 ℃/s and the optimum slow cooling temperature is determined to be 680 ℃ when rapid cooling temperature is 280 ℃ with the composition system combining with the microstructure and mechanical properties of finished products.
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文章根据冷轧980 MPa级马氏体钢技术要求进行了化学成分和生产工艺设计,并采用中试平台开展了冷轧980 MPa级马氏体钢实验室退火工艺研究。研究结果表明,采用相同化学成分及轧制工艺生产的冷轧980 MPa级马氏体钢通过调整退火缓冷温度得到的产品屈服强度为750~940 MPa,抗拉强度达到1 020 MPa以上,延伸率在10%以上,满足技术要求。明确了缓冷温度对冷轧980 MPa级马氏体钢组织性能的影响规律,结合显微组织及成品机械性能确定该成分体系下均热温度为800 ℃、缓冷冷速为3 ℃/s、快冷冷速为45 ℃/s、快冷温度为280 ℃时,最佳缓冷温度为680 ℃。
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杨源远(1984-),男,内蒙古巴彦淖尔市人,高级工程师,现从事板材新产品及工艺研究。
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杨源远(1984-),男,内蒙古巴彦淖尔市人,高级工程师,现从事板材新产品及工艺研究。
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金属热处理,
2014,
39(4):76-80., articleTitle=过时效处理对冷轧超高强马氏体钢板组织与性能的影响, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1200024811616436723, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, xref=1, ext=[AuthorCompanyExt(id=1200024811624825332, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, companyId=1200024811616436723, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China), AuthorCompanyExt(id=1200024811633213941, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, companyId=1200024811616436723, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 内蒙古包钢钢联股份有限公司技术中心, 内蒙古 包头 014010)]), AuthorCompany(id=1200024811754848763, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, xref=2, ext=[AuthorCompanyExt(id=1200024811763237373, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, companyId=1200024811754848763, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Rare Earth Steel Plate Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China), AuthorCompanyExt(id=1200024811784208894, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, companyId=1200024811754848763, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 内蒙古包钢钢联股份有限公司稀土钢板材厂, 内蒙古 包头 014010)])], figs=[ArticleFig(id=1200024816116925110, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, language=EN, label=null, caption=null, figureFileSmall=JumsZRSK8zAzvpOesei7Ww==, figureFileBig=71EF6BvfkH3B3yMJpeWUNw==, tableContent=null), ArticleFig(id=1200024816213394104, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, language=CN, label=图1, caption=
连续退火冷却曲线, figureFileSmall=JumsZRSK8zAzvpOesei7Ww==, figureFileBig=71EF6BvfkH3B3yMJpeWUNw==, tableContent=null), ArticleFig(id=1200024816322446014, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, language=EN, label=null, caption=null, figureFileSmall=c1d6DiR2Xj6evfos4PwEgA==, figureFileBig=Nr4n/3kqiJHn27PoZPEwUQ==, tableContent=null), ArticleFig(id=1200024816418915012, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, language=CN, label=图2, caption=
热轧后显微组织, figureFileSmall=c1d6DiR2Xj6evfos4PwEgA==, figureFileBig=Nr4n/3kqiJHn27PoZPEwUQ==, tableContent=null), ArticleFig(id=1200024816502801097, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, language=EN, label=null, caption=null, figureFileSmall=T+Yl7YAkaaKoSf1amuK5kA==, figureFileBig=Tw7ZdRQjpNE1Espu2zBfvw==, tableContent=null), ArticleFig(id=1200024816653796051, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, language=CN, label=图3, caption=
退火后显微组织, figureFileSmall=T+Yl7YAkaaKoSf1amuK5kA==, figureFileBig=Tw7ZdRQjpNE1Espu2zBfvw==, tableContent=null), ArticleFig(id=1200024816779625177, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199810034105418269, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| C | Si | Mn | P | S | Alt |
| ≤0.20 | ≤2.2 | ≤3.0 | ≤0.02 | ≤0.025 | ≥0.01 |
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化学成分要求(质量分数) %
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| C | Si | Mn | P | S | Alt |
| ≤0.20 | ≤2.2 | ≤3.0 | ≤0.02 | ≤0.025 | ≥0.01 |
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| Rp0.2/MPa | Rm/MPa | A80/% |
| 700~960 | ≥980 | ≥2 |
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力学性能要求
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| Rp0.2/MPa | Rm/MPa | A80/% |
| 700~960 | ≥980 | ≥2 |
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| C | Si | Mn | P | S | Alt | Cr |
| 0.13~0.14 | 0.50~0.55 | 1.70~1.80 | ≤0.020 | ≤0.010 | 0.038 | 0.25~0.35 |
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钢种成分(质量分数) %
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| C | Si | Mn | P | S | Alt | Cr |
| 0.13~0.14 | 0.50~0.55 | 1.70~1.80 | ≤0.020 | ≤0.010 | 0.038 | 0.25~0.35 |
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| 精轧开轧温度 | 精轧终轧温度 | 模拟卷取温度 |
| 1 230±10 | 880±10 | 580±10 |
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主要工艺参数 ℃
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| 精轧开轧温度 | 精轧终轧温度 | 模拟卷取温度 |
| 1 230±10 | 880±10 | 580±10 |
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| 道次 | 厚度/mm | 压下率/% |
| 0 | 110.0 | |
| 1 | 85.0 | 23 |
| 2 | 54.0 | 36 |
| 3 | 32.0 | 41 |
| 4 | 18.0 | 44 |
| 5 | 11.5 | 36 |
| 6 | 8.0 | 30 |
| 7 | 5.8 | 28 |
| 8 | 4.3 | 26 |
| 9 | 3.5 | 19 |
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热轧压下规程
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| 道次 | 厚度/mm | 压下率/% |
| 0 | 110.0 | |
| 1 | 85.0 | 23 |
| 2 | 54.0 | 36 |
| 3 | 32.0 | 41 |
| 4 | 18.0 | 44 |
| 5 | 11.5 | 36 |
| 6 | 8.0 | 30 |
| 7 | 5.8 | 28 |
| 8 | 4.3 | 26 |
| 9 | 3.5 | 19 |
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| Ac1 | Ac3 | Bs | Ms | Mf |
| 737 | 815 | 584 | 402 | 292 |
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冷轧980 MPa级马氏体钢组织转变温度理论值 ℃
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| Ac1 | Ac3 | Bs | Ms | Mf |
| 737 | 815 | 584 | 402 | 292 |
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| 工艺 | 加热段 | | 均热段 | | 缓冷段 | | 快冷段 | | 过时效段(保温) | | 终冷段 |
加热速度 /(℃·s-1) | 温度 /℃ | 时间 /s | 冷却速度 /(℃·s-1) | 温度 /℃ | 冷却速度 /(℃·s-1) | 温度 /℃ | 温度 /℃ | 时间 /s | 温度 /℃ |
| 工艺1 | 10 | | 820 | 100 | | 3 | 730 | | 45 | 280 | | 280 | 400 | | 150 |
| 工艺2 | 10 | | 820 | 100 | | 3 | 700 | | 45 | 280 | | 280 | 400 | | 150 |
| 工艺3 | 10 | | 820 | 100 | | 3 | 680 | | 45 | 280 | | 280 | 400 | | 150 |
| 工艺4 | 10 | | 820 | 100 | | 3 | 670 | | 45 | 280 | | 280 | 400 | | 150 |
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连续退火工艺参数设计
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| 工艺 | 加热段 | | 均热段 | | 缓冷段 | | 快冷段 | | 过时效段(保温) | | 终冷段 |
加热速度 /(℃·s-1) | 温度 /℃ | 时间 /s | 冷却速度 /(℃·s-1) | 温度 /℃ | 冷却速度 /(℃·s-1) | 温度 /℃ | 温度 /℃ | 时间 /s | 温度 /℃ |
| 工艺1 | 10 | | 820 | 100 | | 3 | 730 | | 45 | 280 | | 280 | 400 | | 150 |
| 工艺2 | 10 | | 820 | 100 | | 3 | 700 | | 45 | 280 | | 280 | 400 | | 150 |
| 工艺3 | 10 | | 820 | 100 | | 3 | 680 | | 45 | 280 | | 280 | 400 | | 150 |
| 工艺4 | 10 | | 820 | 100 | | 3 | 670 | | 45 | 280 | | 280 | 400 | | 150 |
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| 项目 | Rp0.2/MPa | Rm/MPa | A80/% |
| 技术要求 | 700~960 | ≥980 | ≥2.0 |
| 工艺1 | 937 | 1 157 | 10.5 |
| 工艺2 | 911 | 1 152 | 10.0 |
| 工艺3 | 871 | 1 098 | 11.5 |
| 工艺4 | 750 | 1 020 | 12.5 |
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力学性能要求和实际结果
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| 项目 | Rp0.2/MPa | Rm/MPa | A80/% |
| 技术要求 | 700~960 | ≥980 | ≥2.0 |
| 工艺1 | 937 | 1 157 | 10.5 |
| 工艺2 | 911 | 1 152 | 10.0 |
| 工艺3 | 871 | 1 098 | 11.5 |
| 工艺4 | 750 | 1 020 | 12.5 |
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