Article(id=1202984229564015003, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1202984226762219866, articleNumber=1009-5438(2022)03-0048-04, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1639065600000, receivedDateStr=2021-12-10, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1764743390694, onlineDateStr=2025-12-03, pubDate=1656086400000, pubDateStr=2022-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764743390694, onlineIssueDateStr=2025-12-03, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764743390694, creator=13701087609, updateTime=1764743390694, updator=13701087609, issue=Issue{id=1202984226762219866, tenantId=1146029695717560320, journalId=1185652524569653253, year='2022', volume='48', issue='3', 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=1764743390026, creator=13701087609, updateTime=1764744768237, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1202990007461049256, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1202984226762219866, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1202990007461049257, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1202984226762219866, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=48, endPage=51, ext={EN=ArticleExt(id=1202984229895365031, articleId=1202984229564015003, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Cause Analysis on Surface Cracks of H Beam Steel Web, 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 causes of cracks are analyzed with the macro morphological observation, chemical composition analysis, metallographic microstructure inspection, scanning electron microscopy and energy spectrum analysis aiming at the surface cracks of H beam web of a large domestic steel plant. The results showed that there was decarburization in the microstructure near cracks as well as there were secondary oxide particles containing silicon and manganese and the characteristic element sodium near matrix, which indicate that the cracks are generated during continuous casting of casting blank and finally formed on the surface of web.
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王海明(1983-),男,内蒙古巴彦淖尔市人,高级工程师,现从事金属材料及热处理工艺工作。
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王海明(1983-),男,内蒙古巴彦淖尔市人,高级工程师,现从事金属材料及热处理工艺工作。
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王海明(1983-),男,内蒙古巴彦淖尔市人,高级工程师,现从事金属材料及热处理工艺工作。
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纵截面裂纹形貌, figureFileSmall=fBqyJQDiwTZupKZGk2ritg==, figureFileBig=cFyPd9A/XiFbCsg0lgVipg==, tableContent=null), ArticleFig(id=1202984233489883768, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984229564015003, language=EN, label=null, caption=null, figureFileSmall=Y+2WvJfJdogRbkTW6JHmlA==, figureFileBig=5BZtSGe/pI00DNuDEjMQvA==, tableContent=null), ArticleFig(id=1202984233582158458, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984229564015003, language=CN, label=图4, caption=
缺陷处扫描电镜形貌及能谱图, figureFileSmall=Y+2WvJfJdogRbkTW6JHmlA==, figureFileBig=5BZtSGe/pI00DNuDEjMQvA==, tableContent=null), ArticleFig(id=1202984233682821759, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984229564015003, language=EN, label=null, caption=null, figureFileSmall=hHoKYmVmqMHfGVzVV6T42A==, figureFileBig=LXFwajF0pQKQU1ha0vbGtw==, tableContent=null), ArticleFig(id=1202984233796067971, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984229564015003, language=CN, label=图5, caption=
夹杂物处扫描电镜形貌及能谱图, figureFileSmall=hHoKYmVmqMHfGVzVV6T42A==, figureFileBig=LXFwajF0pQKQU1ha0vbGtw==, tableContent=null), ArticleFig(id=1202984233884148358, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984229564015003, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | C | Si | Mn | P | S | Ni | Cr | Cu | Nb |
| H型钢 | 0.08 | 0.44 | 0.41 | 0.086 | 0.008 | 0.26 | 0.43 | 0.27 | 0.033 |
| 协议要求 | 0.06~0.10 | 0.35~0.55 | 0.30~0.50 | 0.07~0.1 | ≤0.015 | 0.2~0.3 | 0.4~0.5 | 0.2~0.3 | 0.025~0.035 |
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H型钢腹板表面裂纹缺陷的化学成分(质量分数)%
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | C | Si | Mn | P | S | Ni | Cr | Cu | Nb |
| H型钢 | 0.08 | 0.44 | 0.41 | 0.086 | 0.008 | 0.26 | 0.43 | 0.27 | 0.033 |
| 协议要求 | 0.06~0.10 | 0.35~0.55 | 0.30~0.50 | 0.07~0.1 | ≤0.015 | 0.2~0.3 | 0.4~0.5 | 0.2~0.3 | 0.025~0.035 |
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| C | O | Mg | Na | Al | S | Si | Mn | Fe | Ca |
| 1.33 | 48.7 | 3.11 | 2.14 | 3.14 | 0.61 | 11.14 | 8.31 | 3.19 | 18.35 |
), ArticleFig(id=1202984234119029391, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984229564015003, language=CN, label=表2, caption=
铸坯表面粘结物化学成分(质量分数)%
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| C | O | Mg | Na | Al | S | Si | Mn | Fe | Ca |
| 1.33 | 48.7 | 3.11 | 2.14 | 3.14 | 0.61 | 11.14 | 8.31 | 3.19 | 18.35 |
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