Article(id=1202984232588112461, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1202984226762219866, articleNumber=1009-5438(2022)03-0043-05, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1647532800000, receivedDateStr=2022-03-18, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1764743391414, onlineDateStr=2025-12-03, pubDate=1656086400000, pubDateStr=2022-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764743391414, onlineIssueDateStr=2025-12-03, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764743391414, creator=13701087609, updateTime=1764743391414, 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=43, endPage=47, ext={EN=ArticleExt(id=1202984232940434021, articleId=1202984232588112461, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Research on Microstructure and Properties of Steel Plate with Low Welding Crack Sensibility, columnId=1187340471245357385, journalTitle=Science & Technology of Baotou Steel, columnName=Quality of Variety and Experiment and Research, runingTitle=null, highlight=null, articleAbstract=
The 800 MPa grade hydropower engineering steel with low welding crack sensibility is developed through smelting test steel with 100 kg vacuum induction furnace as well as thermal mechanical control processing (TMCP), quenching and tempering processes adopting the alloy system route of low carbon, carbon equivalent (Ceq) and welding crack sensibility index (Pcm) in laboratory. Such mechanical properties as the strength, impact and bending of test steel are tested as well as its microstructure and fracture morphology are analyzed with the optical microscope (OM) and field emission scanning electron microscope (SEM). The results showed that its microstructure at room temperature was tempered sorbite, all its mechanical properties were excellent, its yield strength, tensile strength and elongation after fracture were 788 MPa, 842 MPa and 18.1%, low temperature impact absorbing energy at -40 ℃ was 197 J, strength and toughness well matched as well as welding crack sensitivity index was low, which could meet the performance requirements in use.
, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Hui-hui Wei, Hai-rui Bai, Xiong Yang, Xiao-yu Lu, Yuan-yuan Yang), CN=ArticleExt(id=1202984234098062005, articleId=1202984232588112461, tenantId=1146029695717560320, journalId=1185652524569653253, language=CN, title=低焊接裂纹敏感性钢板组织和性能研究, columnId=1185887584472417142, journalTitle=包钢科技, columnName=品种质量与试验研究, runingTitle=null, highlight=null, articleAbstract=采用低碳、低碳当量(Ceq)、低焊接裂纹敏感性指数(Pcm)的合金体系路线,利用100 kg真空感应炉进行试验钢冶炼,在TMCP及调质的工艺下在实验室研制800 MPa级水电工程用低焊接裂纹敏感性钢。对试验钢的强度、冲击及弯曲等力学性能进行了检测,并利用光学显微镜(OM)和场发射扫描电镜(SEM)对试验钢的显微组织及断口形貌进行分析。结果表明,试验钢室温显微组织为回火索氏体,各项力学性能优良,试验钢屈服强度、抗拉强度、断后伸长率分别为788 MPa、842 MPa、18.1%,-40 ℃低温冲击吸收功为197 J,强韧性匹配好,焊接裂纹敏感指数低,满足使用性能要求。, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=P4SXmJ75CktHUOIUYLd/WQ==, magXml=tP8pClIm+5D7y612Iqvn5w==, pdfUrl=null, pdf=VhyQkCdV1RPNQpOgVVd/8g==, pdfFileSize=1237832, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=6mhmvrasES9v7DExp2CdZA==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=zARXr8xg4da8pas6B+JM8w==, mapNumber=null, authorCompany=null, fund=null, authors=
魏慧慧(1988-),女,内蒙古乌兰察布市人,硕士,工程师,现从事宽厚板产品研发工作。
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魏慧慧(1988-),女,内蒙古乌兰察布市人,硕士,工程师,现从事宽厚板产品研发工作。
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魏慧慧(1988-),女,内蒙古乌兰察布市人,硕士,工程师,现从事宽厚板产品研发工作。
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试验钢不同调质工艺下冷弯照片, figureFileSmall=i2DBL+WS9ec6/aLdGI1RbQ==, figureFileBig=6mhmvrasES9v7DExp2CdZA==, tableContent=null), ArticleFig(id=1202984236639810402, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984232588112461, language=EN, label=null, caption=null, figureFileSmall=CESSWSeqO14MMdrGAO+I+g==, figureFileBig=2hxMnjUrzHePzsVasTSnew==, tableContent=null), ArticleFig(id=1202984236723696487, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984232588112461, language=CN, label=图2, caption=
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| C | Si | Mn | P | S | Ni | Cr | Mo | Nb+V+Ti |
| ≤0.09 | 0.15~0.50 | ≤1.50 | ≤0.015 | ≤0.005 | ≥1.5 | ≤0.6 | ≤0.6 | 适量 |
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试验钢化学成分(质量分数)%
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| C | Si | Mn | P | S | Ni | Cr | Mo | Nb+V+Ti |
| ≤0.09 | 0.15~0.50 | ≤1.50 | ≤0.015 | ≤0.005 | ≥1.5 | ≤0.6 | ≤0.6 | 适量 |
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| 调质工艺 | 屈服强度 Rel/MPa | 抗拉强度 Rm/MPa | 断后延 伸率A/% | -40 ℃冲击吸收功KV2/J | 180° 弯曲试验 |
| 900 ℃保温20 min淬火、640 ℃保温30 min回火 | 784 | 793 | 17.0 | 198 | 192 | 195 | 合格 |
| 920 ℃保温20 min淬火、640 ℃保温30 min回火 | 788 | 842 | 18.1 | 198 | 200 | 193 | 合格 |
| 940 ℃保温20 min淬火、640 ℃保温30 min回火 | 839 | 868 | 17.2 | 204 | 187 | 193 | 合格 |
| 920 ℃保温20 min淬火、620 ℃保温30 min回火 | 763 | 811 | 16.7 | 169 | 172 | 158 | 合格 |
| 920 ℃保温20 min淬火、600 ℃保温30 min回火 | 827 | 875 | 16.5 | 57 | 147 | 194 | 合格 |
| 技术要求 | ≥690 | 780~930 | ≥15 | ≥47 | 无裂纹 |
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试验钢力学性能
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| 调质工艺 | 屈服强度 Rel/MPa | 抗拉强度 Rm/MPa | 断后延 伸率A/% | -40 ℃冲击吸收功KV2/J | 180° 弯曲试验 |
| 900 ℃保温20 min淬火、640 ℃保温30 min回火 | 784 | 793 | 17.0 | 198 | 192 | 195 | 合格 |
| 920 ℃保温20 min淬火、640 ℃保温30 min回火 | 788 | 842 | 18.1 | 198 | 200 | 193 | 合格 |
| 940 ℃保温20 min淬火、640 ℃保温30 min回火 | 839 | 868 | 17.2 | 204 | 187 | 193 | 合格 |
| 920 ℃保温20 min淬火、620 ℃保温30 min回火 | 763 | 811 | 16.7 | 169 | 172 | 158 | 合格 |
| 920 ℃保温20 min淬火、600 ℃保温30 min回火 | 827 | 875 | 16.5 | 57 | 147 | 194 | 合格 |
| 技术要求 | ≥690 | 780~930 | ≥15 | ≥47 | 无裂纹 |
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| 调制工艺 | -20 ℃ | -40 ℃ | -50 ℃ | -60 ℃ | -80 ℃ |
| 204 | 198 | 228 | 150 | 114 |
| 920 ℃保温20 min淬火,640 ℃保温30 min回火 | 220 | 200 | 181 | 173 | 162 |
| 204 | 193 | 221 | 75 | 165 |
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试验钢系列温度冲击吸收功J
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| 调制工艺 | -20 ℃ | -40 ℃ | -50 ℃ | -60 ℃ | -80 ℃ |
| 204 | 198 | 228 | 150 | 114 |
| 920 ℃保温20 min淬火,640 ℃保温30 min回火 | 220 | 200 | 181 | 173 | 162 |
| 204 | 193 | 221 | 75 | 165 |
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| 调制工艺 | 残余应 变量/% | 保温制度 | 试验温度 /℃ | 冲击吸收功KV2/J | 冲击吸收功 平均值KV2/J |
| 920 ℃保温20 min淬火, | 5 | 250 ℃、1 h | -20 | 191 | 201 | 198 | 197 |
| 640 ℃保温30 min回火 | | | -40 | 188 | 188 | 198 | 191 |
| 技术要求 | | | -20 | | | | ≥47 |
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试验钢应变时效冲击吸收能
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| 调制工艺 | 残余应 变量/% | 保温制度 | 试验温度 /℃ | 冲击吸收功KV2/J | 冲击吸收功 平均值KV2/J |
| 920 ℃保温20 min淬火, | 5 | 250 ℃、1 h | -20 | 191 | 201 | 198 | 197 |
| 640 ℃保温30 min回火 | | | -40 | 188 | 188 | 198 | 191 |
| 技术要求 | | | -20 | | | | ≥47 |
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