Article(id=1199809975481630758, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199809968984650567, articleNumber=1009-5438(2022)05-0077-04, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1658764800000, receivedDateStr=2022-07-26, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1763986589545, onlineDateStr=2025-11-24, pubDate=1666627200000, pubDateStr=2022-10-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763986589545, onlineIssueDateStr=2025-11-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763986589545, creator=13701087609, updateTime=1763986589545, updator=13701087609, issue=Issue{id=1199809968984650567, tenantId=1146029695717560320, journalId=1185652524569653253, year='2022', volume='48', issue='5', 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=1763986587997, creator=13701087609, updateTime=1764034198143, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200009660469183174, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199809968984650567, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200009660469183175, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199809968984650567, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=77, endPage=80, ext={EN=ArticleExt(id=1199809975863312431, articleId=1199809975481630758, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Research and Development of Non-quenched and Tempered Steel F28MnSiVTiRE with High Strength and Toughness, columnId=1187340471245357385, journalTitle=Science & Technology of Baotou Steel, columnName=Quality of Variety and Experiment and Research, runingTitle=null, highlight=null, articleAbstract=
Such elements that could refine grain as V, Nb, Ti, Al and rare earth (RE) are added into the medium carbon steel as well as the stable compound formed by N, C and elements that could refine grain is used to refine the austenite grain and increase the strength and toughness of non-quenched and tempered steel. The stable compound formed by N, C, V, Nb, Ti and Al are observed with metallographic microscope and transmission electron microscope so that the non-quenched and tempered ferrite-pearlite steel is successfully developed. Its yield strength is greater than 550 MPa, tensile strength is greater than 780 MPa, hardness (HB) is not less than 210, elongation is greater than 18%, reduction of area is greater than 45% and impact value of V-notch at room temperature is greater than 50 J. Compared with common non-quenched and tempered steel, the non-quenched and tempered steel F28MnSiVTiRE is with such advantages as high strength and toughness and free cutting so that it could be used for machining such components as vehicle crankshaft and engine connecting rod.
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中碳钢中加入V、Nb、Ti、Al、RE等细化晶粒元素,利用N、C与细化晶粒元素形成稳定的化合物来细化奥氏体晶粒,增加非调质钢的强度及韧性,采用金相显微镜和透射电镜观察,N、C与V、Nb、Ti、Al形成稳定化合物,成功研发出铁素体-珠光体型非调质钢,其屈服强度大于550 MPa,抗拉强度大于780 MPa,硬度(HB)不小于210,延伸率大于18%,面缩率大于45%,常温V型缺口冲击值大于50 J。与普通非调质钢相比,非调质钢F28MnSiVTiRE具有高强度、高韧性、易切削等优点,可用于加工汽车曲轴、发动机连杆等部件。
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宋振东(1982-),男,内蒙古赤峰市人,高级工程师,现从事特钢、型钢新产品开发工作。
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38(10):1-4., articleTitle=CSP工艺热轧SPHC组织演变和析出物研究, refAbstract=null), Reference(id=1200030239502988082, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809975481630758, doi=null, pmid=null, pmcid=null, year=2017, volume=null, issue=4, pageStart=20, pageEnd=23, url=null, language=null, rfNumber=[6], rfOrder=5, authorNames=Qing J S, Shen H F, Liu M, journalName=Iron & Steel, refType=null, unstructuredReference=
Qing J S,
Shen H F,
Liu M. V-N Microalloying of High Strength Weathering Steel YQ450NQR1[J].
Iron & Steel,
2017,(4):20-23., articleTitle=V-N Microalloying of High Strength Weathering Steel YQ450NQR1, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1200030232632717873, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809975481630758, xref=1, ext=[AuthorCompanyExt(id=1200030232645300786, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809975481630758, companyId=1200030232632717873, 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=1200030232662078006, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809975481630758, companyId=1200030232632717873, 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=1200030232863404607, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809975481630758, xref=2, ext=[AuthorCompanyExt(id=1200030232938902080, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809975481630758, companyId=1200030232863404607, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Special Steel Branch Co. of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China), AuthorCompanyExt(id=1200030232947290689, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809975481630758, companyId=1200030232863404607, 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特钢分公司, 内蒙古 包头 014010)])], figs=[ArticleFig(id=1200030236067853044, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809975481630758, language=EN, label=null, caption=null, figureFileSmall=GS5ifWk9y7JT9/0iC50DFA==, figureFileBig=FAKl4pxWN0Q1jsoD7AmqVg==, tableContent=null), ArticleFig(id=1200030237242258169, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809975481630758, language=CN, label=图1, caption=
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| C | Si | Mn | P | S | V | Nb | Ti | Al | RE |
| ≤0.28 | ≤0.80 | ≤1.70 | ≤0.025 | ≤0.025 | ≤0.15 | ≤0.06 | ≤0.06 | ≤0.050 | ≤0.003 0 |
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非调质钢F28MnSiVTiRE的化学成分(质量分数) %
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| C | Si | Mn | P | S | V | Nb | Ti | Al | RE |
| ≤0.28 | ≤0.80 | ≤1.70 | ≤0.025 | ≤0.025 | ≤0.15 | ≤0.06 | ≤0.06 | ≤0.050 | ≤0.003 0 |
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| 编号 | 屈服强度 /MPa | 抗拉强度 /MPa | 延伸率 /% | 面缩率 /% |
| 8# | 583.64 | 800.30 | 23.56 | 57.14 |
| 8# | 604.62 | 809.61 | 24.12 | 67.21 |
| 9# | 580.33 | 794.28 | 24.80 | 63.76 |
| 9# | 580.76 | 782.93 | 24.00 | 63.30 |
| 技术要求 | ≥550 | ≥780 | ≥18 | ≥45 |
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非调质钢F28MnSiVTiRE拉伸试验结果及技术要求
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| 编号 | 屈服强度 /MPa | 抗拉强度 /MPa | 延伸率 /% | 面缩率 /% |
| 8# | 583.64 | 800.30 | 23.56 | 57.14 |
| 8# | 604.62 | 809.61 | 24.12 | 67.21 |
| 9# | 580.33 | 794.28 | 24.80 | 63.76 |
| 9# | 580.76 | 782.93 | 24.00 | 63.30 |
| 技术要求 | ≥550 | ≥780 | ≥18 | ≥45 |
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| 编号 | KV2 | | KU2 | |
| 8# | | 89.7 | 100.2 | 100.5 | | 115.4 | 137.2 | 124.1 |
| 8# | 95.5 | 89.1 | 87.1 | 125.1 | 135.7 | 131.8 |
| 9# | 93.9 | 83.0 | 106.6 | 122.3 | 129.3 | 127.9 |
| 9# | 86.2 | 104.5 | 97.9 | 134.7 | 113.7 | 140.1 |
| 技术要求 | ≥50 | ≥50 |
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非调质钢室温条件下F28MnSiVTiRE冲击结果及技术要求 J
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| 编号 | KV2 | | KU2 | |
| 8# | | 89.7 | 100.2 | 100.5 | | 115.4 | 137.2 | 124.1 |
| 8# | 95.5 | 89.1 | 87.1 | 125.1 | 135.7 | 131.8 |
| 9# | 93.9 | 83.0 | 106.6 | 122.3 | 129.3 | 127.9 |
| 9# | 86.2 | 104.5 | 97.9 | 134.7 | 113.7 | 140.1 |
| 技术要求 | ≥50 | ≥50 |
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| 编号 | 布氏硬度(HB) |
| 硬度值1 | 硬度值2 | 硬度值3 | 硬度值4 | 硬度值5 | 硬度值6 |
| 8# | 232 | 234 | 230 | 228 | 228 | 229 |
| 9# | 230 | 230 | 228 | 229 | 226 | 225 |
| 技术要求 | ≥210 |
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| 编号 | 布氏硬度(HB) |
| 硬度值1 | 硬度值2 | 硬度值3 | 硬度值4 | 硬度值5 | 硬度值6 |
| 8# | 232 | 234 | 230 | 228 | 228 | 229 |
| 9# | 230 | 230 | 228 | 229 | 226 | 225 |
| 技术要求 | ≥210 |
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