Article(id=1188430998275506847, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1188430994622268045, articleNumber=1009-5438(2024)04-0067-05, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1717171200000, receivedDateStr=2024-06-01, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1761273629969, onlineDateStr=2025-10-24, pubDate=1724515200000, pubDateStr=2024-08-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1761273629969, onlineIssueDateStr=2025-10-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1761273629969, creator=13701087609, updateTime=1761273629969, updator=13701087609, issue=Issue{id=1188430994622268045, tenantId=1146029695717560320, journalId=1185652524569653253, year='2024', volume='50', issue='4', pageStart='1', pageEnd='98', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=0, articleOrder=1, issueType=-1, specialIssue=null, createTime=1761273629097, creator=13701087609, updateTime=1761283356674, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1188471795062555053, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1188430994622268045, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1188471795062555054, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1188430994622268045, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=67, endPage=71, ext={EN=ArticleExt(id=1188430998497804960, articleId=1188430998275506847, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Study on Effects of Rare Earth Element Ce on DWTT (Drop Weight Tear Test) Properties of X80 Pipeline Steel, columnId=null, journalTitle=Science & Technology of Baotou Steel, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In this paper, the effects of rare earth element Ce on DWTT properties of pipeline steel are studied in laboratory by taking X80 pipeline steel as the research object. The study results showed that the addition of rare earth element Ce could help to improve the low temperature toughness of test steel. The impact energy of sample after adding rare earth element Ce could reach 210 J at -40 ℃, which is increased by 19.3% compared with that of sample without adding rare earth. The addition of rare earth element Ce could help to reduce the ductile-brittle transition temperature of pipeline steel. The impact energy of heat affected zone after welding for sample without adding rare earth element is 189 J and the impact energy of heat affected zone for sample after adding rare earth element Ce could reach 216 J, which is increased by 14.3%.
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文章以X80管线钢为研究对象,在实验室开展稀土元素Ce对管线钢DWTT性能影响研究。研究结果表明,稀土元素Ce的添加有利于提高试验钢的低温韧性,-40 ℃时添加稀土元素Ce后的试样冲击功达到210 J,与未添加稀土的试样相比增幅达到19.3%。添加稀土元素Ce有利于降低管线钢的韧脆转变温度。不添加稀土元素的试样焊后热影响区的冲击功为189 J,添加稀土元素Ce后的试样热影响区冲击功达到216 J,增幅为14.3%。
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袁晓鸣(1983-),男,内蒙古包头市人,博士,高级工程师,现从事管线钢、耐磨钢等板材产品研发工作。
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袁晓鸣(1983-),男,内蒙古包头市人,博士,高级工程师,现从事管线钢、耐磨钢等板材产品研发工作。
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袁晓鸣(1983-),男,内蒙古包头市人,博士,高级工程师,现从事管线钢、耐磨钢等板材产品研发工作。
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| 项目 | C | Si | Mn | P | S | Nb | Ti | Mo | Ce |
| 范围 | ≤0.07 | ≤0.30 | ≤1.80 | ≤0.015 | ≤0.005 | 0.05~0.08 | ≤0.025 | 0.12~0.27 | |
| X80 | 0.05 | 0.21 | 1.78 | 0.010 | 0.001 | 0.08 | 0.020 | 0.20 | |
| X80(RE) | 0.06 | 0.21 | 1.75 | 0.011 | 0.002 | 0.08 | 0.020 | 0.19 | 0.005 0 |
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X80管线钢化学成分(质量分数) %
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| 项目 | C | Si | Mn | P | S | Nb | Ti | Mo | Ce |
| 范围 | ≤0.07 | ≤0.30 | ≤1.80 | ≤0.015 | ≤0.005 | 0.05~0.08 | ≤0.025 | 0.12~0.27 | |
| X80 | 0.05 | 0.21 | 1.78 | 0.010 | 0.001 | 0.08 | 0.020 | 0.20 | |
| X80(RE) | 0.06 | 0.21 | 1.75 | 0.011 | 0.002 | 0.08 | 0.020 | 0.19 | 0.005 0 |
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| 性能 | 屈服强度/MPa | 抗拉强度/MPa |
| 要求 | ≥555 | ≥625 |
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X80管线钢力学性能
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| 性能 | 屈服强度/MPa | 抗拉强度/MPa |
| 要求 | ≥555 | ≥625 |
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| 钢种 | 成品厚度 /mm | 加热炉 温度/℃ | 中间坯 厚度/mm | 粗轧开轧 温度/℃ | 精轧开轧 温度/℃ | 终轧温度 /℃ | 卷取温度 /℃ | 冷速 /(℃·s-1) |
| X80 | 11 | 1 165 | 35 | 1 053 | 947 | 826 | 404 | 23 |
| X80(RE) | 11 | 1 166 | 35 | 1 065 | 945 | 823 | 374 | 25 |
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热轧工艺参数
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| 钢种 | 成品厚度 /mm | 加热炉 温度/℃ | 中间坯 厚度/mm | 粗轧开轧 温度/℃ | 精轧开轧 温度/℃ | 终轧温度 /℃ | 卷取温度 /℃ | 冷速 /(℃·s-1) |
| X80 | 11 | 1 165 | 35 | 1 053 | 947 | 826 | 404 | 23 |
| X80(RE) | 11 | 1 166 | 35 | 1 065 | 945 | 823 | 374 | 25 |
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| 焊接位置 | 填充材料 | 尺寸 /mm | 电流 /A | 电压 /V | 焊接速度 /(cm·min-1) | 线能量 /(kJ·cm-1) |
| 根焊 | JM-100C | 1.2 | 200~280 | 20~30 | 30~40 | 10~15 |
| 实际控制 | JM-100C | 1.2 | 240 | 25.2 | 33 | 10.9 |
| 填充 | JW-8M2 | | 550~650 | 25~35 | 40~50 | 22~28 |
| 实际控制 | JW-8M2 | | 600 | 30 | 44 | 24.5 |
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焊接评价试验方案
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| 焊接位置 | 填充材料 | 尺寸 /mm | 电流 /A | 电压 /V | 焊接速度 /(cm·min-1) | 线能量 /(kJ·cm-1) |
| 根焊 | JM-100C | 1.2 | 200~280 | 20~30 | 30~40 | 10~15 |
| 实际控制 | JM-100C | 1.2 | 240 | 25.2 | 33 | 10.9 |
| 填充 | JW-8M2 | | 550~650 | 25~35 | 40~50 | 22~28 |
| 实际控制 | JW-8M2 | | 600 | 30 | 44 | 24.5 |
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| 样品 | 试样编号 | 试样位置 | 试样形式 | 抗拉强度Rm/MPa | 断裂位置 |
| X80(RE) | 1# | 焊接接头 | 矩形 | 741 | 断于熔合线 |
| X80(RE) | 1# | 焊接接头 | 矩形 | 743 | 断于熔合线 |
| X80 | 2# | 焊接接头 | 矩形 | 746 | 断于熔合线 |
| X80 | 2# | 焊接接头 | 矩形 | 748 | 断于熔合线 |
| Q/SY GJX 0503.2—2016要求 | 焊接接头 | 矩形 | ≥625 | |
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焊缝及热影响区拉伸试验
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| 样品 | 试样编号 | 试样位置 | 试样形式 | 抗拉强度Rm/MPa | 断裂位置 |
| X80(RE) | 1# | 焊接接头 | 矩形 | 741 | 断于熔合线 |
| X80(RE) | 1# | 焊接接头 | 矩形 | 743 | 断于熔合线 |
| X80 | 2# | 焊接接头 | 矩形 | 746 | 断于熔合线 |
| X80 | 2# | 焊接接头 | 矩形 | 748 | 断于熔合线 |
| Q/SY GJX 0503.2—2016要求 | 焊接接头 | 矩形 | ≥625 | |
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| 样品 | 试样编号 | 试样位置 | 冲击功AKV/J | 断口剪切面积SA/% |
| X80(RE) | 1# | 焊缝 | 184 | 77 |
| X80(RE) | 1# | 热影响区 | 216 | 88 |
| X80 | 2# | 焊缝 | 131 | 73 |
| X80 | 2# | 热影响区 | 189 | 73 |
| Q/SY GJX 0503.2—2016要求 | 焊缝、热影响区 | ≥80 | |
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试验钢冲击试验
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| 样品 | 试样编号 | 试样位置 | 冲击功AKV/J | 断口剪切面积SA/% |
| X80(RE) | 1# | 焊缝 | 184 | 77 |
| X80(RE) | 1# | 热影响区 | 216 | 88 |
| X80 | 2# | 焊缝 | 131 | 73 |
| X80 | 2# | 热影响区 | 189 | 73 |
| Q/SY GJX 0503.2—2016要求 | 焊缝、热影响区 | ≥80 | |
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