Article(id=1199809974953148442, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199809968984650567, articleNumber=1009-5438(2022)05-0051-04, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1654790400000, receivedDateStr=2022-06-10, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1763986589419, onlineDateStr=2025-11-24, pubDate=1666627200000, pubDateStr=2022-10-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763986589419, onlineIssueDateStr=2025-11-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763986589419, creator=13701087609, updateTime=1763986589419, 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=51, endPage=54, ext={EN=ArticleExt(id=1199809975305469987, articleId=1199809974953148442, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Determination and Analysis on Continuous Cooling Transformation (CCT) Curve of 800 MPa Grade Steel for Hydropower Project, columnId=1187340471245357385, journalTitle=Science & Technology of Baotou Steel, columnName=Quality of Variety and Experiment and Research, runingTitle=null, highlight=null, articleAbstract=
The phase transition temperature and static CCT curve at critical point of 800 MPa grade steel for hydropower project with low susceptivity to weld cracking are determined with phase change instrument Formast-F and the dilatation method combing with metallographic method as well as the effects of cooling rate on microstructure are studied. The results showed that the phase transition temperatures of test steel, Ac1 was 675 ℃, Ac3 was 875 ℃, Ar1 was 615 ℃ and Ar3 was 739 ℃; when the cooling rate was less than 0.25 ℃/s, the transformation products were ferrite (F) + pearlite (P) + a small amount of bainite (B); when the cooling rate was 0.25~1 ℃/s, the transformation products were ferrite (F)+ bainite (B); when the cooling rate was 1~5 ℃/s, the transformation product was bainite (B); when the cooling rate was 5~20 ℃/s, the transformation products were bainite (B)+ martensite (M); when the cooling rate was greater than 20 ℃/s, the transformation product was martensite (M).
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利用膨胀法并结合金相法,采用相变仪Formast-F测定了800 MPa级水电工程用低焊接裂纹敏感性钢的临界点相变温度和连续冷却转变静态CCT曲线,并研究了冷却速度对显微组织的影响。结果表明:试验钢Ac1为675 ℃,Ac3为875 ℃,Ar1为615 ℃,Ar3为739 ℃;当冷速小于0.25 ℃/s时,转变产物为铁素体(F)+珠光体(P)+少量贝氏体(B);当冷速在0.25~1 ℃/s时,相变产物为铁素体(F)+贝氏体(B);当冷速在1~5 ℃/s时,转变产物为贝氏体(B);当冷速在5~20 ℃/s时,转变产物为贝氏体(B)+马氏体(M);当冷速大于20 ℃/s时,转变产物为马氏体(M)。
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白海瑞(1986-),男,内蒙古土默特左旗人,硕士,高级工程师,现从事宽厚板产品研发工作。
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白海瑞(1986-),男,内蒙古土默特左旗人,硕士,高级工程师,现从事宽厚板产品研发工作。
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白海瑞(1986-),男,内蒙古土默特左旗人,硕士,高级工程师,现从事宽厚板产品研发工作。
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热加工工艺,
2011,
40(22):45-47., articleTitle=27SiMn钢奥氏体连续冷却转变曲线, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1200030230288101851, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809974953148442, xref=null, ext=[AuthorCompanyExt(id=1200030230317461980, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809974953148442, companyId=1200030230288101851, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China), AuthorCompanyExt(id=1200030230330044895, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809974953148442, companyId=1200030230288101851, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=内蒙古包钢钢联股份有限公司技术中心, 内蒙古 包头 014010)])], figs=[ArticleFig(id=1200030234625012401, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809974953148442, language=EN, label=null, caption=null, figureFileSmall=MIYR1nU4SL54w4wKmqNTaw==, figureFileBig=HqLo1X6yvnOwwb81RR9L4w==, tableContent=null), ArticleFig(id=1200030234742452918, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809974953148442, language=CN, label=图1, caption=
试验钢连续冷却转变静态CCT曲线, figureFileSmall=MIYR1nU4SL54w4wKmqNTaw==, figureFileBig=HqLo1X6yvnOwwb81RR9L4w==, tableContent=null), ArticleFig(id=1200030234880864957, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809974953148442, language=EN, label=null, caption=null, figureFileSmall=kpKVoyyB23LQFITaTDz52w==, figureFileBig=XFjb7qRS9fYGrpH3VsmaHQ==, tableContent=null), ArticleFig(id=1200030234968945347, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809974953148442, language=CN, label=图2, caption=
试验钢不同冷却速度下的金相组织, figureFileSmall=kpKVoyyB23LQFITaTDz52w==, figureFileBig=XFjb7qRS9fYGrpH3VsmaHQ==, tableContent=null), ArticleFig(id=1200030235098968775, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809974953148442, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| C | Si | Mn | P | S | Ni | Cr | Mo | Cu | Nb+V+Ti |
| ≤0.09 | ≤0.40 | ≤1.60 | ≤0.015 | ≤0.007 | ≥1.50 | ≤0.60 | ≤0.60 | ≤0.50 | ≤0.10 |
), ArticleFig(id=1200030235195437772, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199809974953148442, language=CN, label=表1, caption=
试验钢化学成分(质量分数) %
, figureFileSmall=null, figureFileBig=null, tableContent=
| C | Si | Mn | P | S | Ni | Cr | Mo | Cu | Nb+V+Ti |
| ≤0.09 | ≤0.40 | ≤1.60 | ≤0.015 | ≤0.007 | ≥1.50 | ≤0.60 | ≤0.60 | ≤0.50 | ≤0.10 |
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