Article(id=1186982294913958478, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1186982287943021298, articleNumber=1009-5438(2025)01-0060-04, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1732982400000, receivedDateStr=2024-12-01, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1760928232172, onlineDateStr=2025-10-20, pubDate=1740412800000, pubDateStr=2025-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1760928232172, onlineIssueDateStr=2025-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1760928232172, creator=13701087609, updateTime=1760928232172, updator=13701087609, issue=Issue{id=1186982287943021298, tenantId=1146029695717560320, journalId=1185652524569653253, year='2025', volume='51', issue='1', 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=0, createTime=1760928230509, creator=13701087609, updateTime=1760928585419, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1186983776602173865, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1186982287943021298, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1186983776602173866, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1186982287943021298, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=60, endPage=63, ext={EN=ArticleExt(id=1187102807841714864, articleId=1186982294913958478, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Hardenability Test of 770 MPa Grade Steel for Crane Boom, columnId=1187095652984042303, journalTitle=Science & Technology of Baotou Steel, columnName=Variety Quality and Experimental Study, runingTitle=null, highlight=null, articleAbstract=
In this paper, the continuous cooling transformation (CCT) behavior of undercooled austenite and hardenability at different quenching temperatures of 770 MPa grade steel for crane boom are systematically studied. The critical transformation points of test steel are determined and evolution rules of metallographic structure for test steel at different cooling speeds are analyzed through thermal simulation test. The results showed that complete martensitic structure could be obtained when cooling speed reached above 30 ℃/s. The depth of hardening layer corresponding to 50% of martensitic structure content was 30 mm when hot quenching was at 920 ℃, which showed that test steel was with good hardenability.
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康 虹(1989-),女,内蒙古包头市人,硕士,高级工程师,现从事无缝钢管新产品开发工作。
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康 虹(1989-),女,内蒙古包头市人,硕士,高级工程师,现从事无缝钢管新产品开发工作。
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康 虹(1989-),女,内蒙古包头市人,硕士,高级工程师,现从事无缝钢管新产品开发工作。
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钢的淬透性应用技术[M]. 北京: 机械工业出版社,
1994., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1187102906458190823, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1186982294913958478, xref=null, ext=[AuthorCompanyExt(id=1187102906466579432, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1186982294913958478, companyId=1187102906458190823, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Inner Mongolia Baotou Steel Pipe Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China), AuthorCompanyExt(id=1187102906474968041, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1186982294913958478, companyId=1187102906458190823, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=内蒙古包钢钢管有限公司,内蒙古 包头 014010)])], figs=[ArticleFig(id=1187102909280956448, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1186982294913958478, language=EN, label=null, caption=null, figureFileSmall=knCttS9L4mqHVGj2XQp7bQ==, figureFileBig=WvikmzaJA/ji6ab5p6PDeg==, tableContent=null), ArticleFig(id=1187102909373231139, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1186982294913958478, language=CN, label=图1, caption=
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试验钢的淬透性曲线, figureFileSmall=AwG2vnIPBvCnyPoiELGlPg==, figureFileBig=lCohAkdcrz3gpdzKOaVcWg==, tableContent=null), ArticleFig(id=1187102909717164075, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1186982294913958478, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| C | Si | Mn | P | S | Cr | Mo+V+ Ni |
| 0.16 | 0.35 | 1.32 | 0.012 | 0.010 | 0.70 | ≤0.80 |
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化学成分(质量分数) %
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| C | Si | Mn | P | S | Cr | Mo+V+ Ni |
| 0.16 | 0.35 | 1.32 | 0.012 | 0.010 | 0.70 | ≤0.80 |
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距淬火端面 距离/mm | 880 ℃ | 900 ℃ | 920 ℃ |
| 1.5 | 42.55 | 43.30 | 43.45 |
| 3 | 41.65 | 43.45 | 43.30 |
| 5 | 42.35 | 43.50 | 43.40 |
| 7 | 41.35 | 41.45 | 41.30 |
| 9 | 38.40 | 38.05 | 39.75 |
| 11 | 35.50 | 35.75 | 35.40 |
| 13 | 33.80 | 32.45 | 34.80 |
| 15 | 31.55 | 32.05 | 33.85 |
| 20 | 30.50 | 30.45 | 31.15 |
| 25 | 27.05 | 26.70 | 30.10 |
| 30 | 25.55 | 25.35 | 28.55 |
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试验钢洛氏硬度(HRC)检测结果
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距淬火端面 距离/mm | 880 ℃ | 900 ℃ | 920 ℃ |
| 1.5 | 42.55 | 43.30 | 43.45 |
| 3 | 41.65 | 43.45 | 43.30 |
| 5 | 42.35 | 43.50 | 43.40 |
| 7 | 41.35 | 41.45 | 41.30 |
| 9 | 38.40 | 38.05 | 39.75 |
| 11 | 35.50 | 35.75 | 35.40 |
| 13 | 33.80 | 32.45 | 34.80 |
| 15 | 31.55 | 32.05 | 33.85 |
| 20 | 30.50 | 30.45 | 31.15 |
| 25 | 27.05 | 26.70 | 30.10 |
| 30 | 25.55 | 25.35 | 28.55 |
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