Article(id=1320423006397125469, tenantId=1146029695717560320, journalId=1319355204128309394, issueId=1320422991322796787, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1001-4837.2026.01.002, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1743609600000, receivedDateStr=2025-04-03, revisedDate=1762963200000, revisedDateStr=2025-11-13, acceptedDate=null, acceptedDateStr=null, onlineDate=1792742976998, onlineDateStr=2026-10-23, pubDate=1769702400000, pubDateStr=2026-01-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792742976998, onlineIssueDateStr=2026-10-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792742976998, creator=13701087609, updateTime=1792742976998, updator=13701087609, issue=Issue{id=1320422991322796787, tenantId=1146029695717560320, journalId=1319355204128309394, year='2026', volume='43', issue='1', pageStart='1', pageEnd='86', issueExtLink='null', onlineDate='null', pubDate='1769702400000', pubDateStr='2026-01-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792742973404, creator='13701087609', updateTime=1792745324599, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320432853012304549, tenantId=1146029695717560320, journalId=1319355204128309394, issueId=1320422991322796787, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320432853016498854, tenantId=1146029695717560320, journalId=1319355204128309394, issueId=1320422991322796787, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=9, endPage=16, ext={EN=ArticleExt(id=1320423006598452062, articleId=1320423006397125469, tenantId=1146029695717560320, journalId=1319355204128309394, language=EN, title=Effect of short‑term overtemperature service on microstructure and properties of 30CrNiMo8 steel, columnId=1320422992476226524, journalTitle=Pressure Vessel Technology, columnName=Experimental Researches, runingTitle=null, highlight=null, articleAbstract=
To address the short‑term overtemperature issues during service of ultra‑high‑pressure polyethylene tubular reactors,optical microscopy (OM),scanning electron microscopy (SEM),energy‑dispersive X‑ray spectroscopy (EDS),Vickers hardness testing,and nanoindentation were employed to systematically investigate the effects of overtemperature temperature,duration,and overtemperature cycles on the microstructure and mechanical properties of key material 30CrNiMo8 steel.Results show that during overtemperature for approximately 30 s,the primary effect on 30CrNiMo8 steel shifts from phase transformation to changes in grain size and morphology,manifested as enhanced brittleness and reduced hardness.When overtemperature exceeds the complete austenitization temperature to 860 ℃,material hardness first sharply increases then decreases due to massive martensite precipitation,carbide formation,and segregation of C,Cr,and Mo elements at grain boundaries.After 6 overtemperature cycles,martensite laths significantly widen with altered bundle orientations,causing grain structure coarsening and mechanical property degradation.This study provides data support and design references for safe operation of ultra‑high‑pressure polyethylene tubular reactors.
, authors=Ruomeng YAN
1, Qifei HUANG
2, Ying ZHANG
3, Shouguang JI
4, Tianxue YANG
5, Kanglin LIU
2, authorsList=Ruomeng YAN, Qifei HUANG, Ying ZHANG, Shouguang JI, Tianxue YANG, Kanglin LIU, authorCompany=null, correspAuthors=Kanglin LIU, 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, fund=null), CN=ArticleExt(id=1320423010440434546, articleId=1320423006397125469, tenantId=1146029695717560320, journalId=1319355204128309394, language=CN, title=30CrNiMo8钢短时超温服役对组织和性能的影响, columnId=1320422992698524638, journalTitle=压力容器, columnName=试验研究, runingTitle=null, highlight=null, articleAbstract=
针对超高压聚乙烯管式反应器服役中面临的短时超温问题,采用光学显微镜(OM)、扫描电镜(SEM)、能量色散X射线光谱(EDS)、维氏硬度计和纳米压痕等表征方法,系统研究短时超温温度、时间及超温次数对关键材料30CrNiMo8钢显微组织与力学性能的影响规律。结果表明:超温约30 s时,对30CrNiMo8钢的主要影响由组织相变转变为晶粒尺寸及形态改变,表现为脆性增强和硬度下降;当超温温度超过完全奥氏体化温度至860 ℃时,因大量马氏体析出、碳化物形成及晶界处C,Cr和Mo元素偏析,材料硬度陡升后降低;超温次数达6次后,马氏体板条显著变宽、板条束取向改变,导致晶粒结构粗化和力学性能劣化。研究可为超高压聚乙烯管式反应器的安全运行提供数据支撑和设计参考。
, authors=严若梦
1, 黄齐飞
2, 张颖
3, 汲寿广
4, 杨天雪
5, 刘康林
2, authorsList=严若梦, 黄齐飞, 张颖, 汲寿广, 杨天雪, 刘康林, authorCompany=null, correspAuthors=刘康林, authorNote=
严若梦(2000),女,主要研究方向为化工装备与控制工程,通信地址:050021河北省石家庄市体育南大街261号中核第四研究设计工程有限公司,E-mail:daisyrm1126@163.com。
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作者向本刊所投稿件一经本刊录用,则该论文的复制权、发行权、信息网络传播权、翻译权、汇编权等权利视为自动转让给本刊。本刊为国内各主要数据库收录期刊,本刊所发表的稿件将同时通过因特网进行网络出版或提供信息服务(包括印刷版、光盘版和网络版等各种使用方式)。, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=XxJ5Pf3VgOYpymXvuI6mzA==, magXml=afPVT42ye+yog7YScfHD9A==, pdfUrl=null, pdf=FMXCPNa5UZuHpn6FAJ2zyA==, pdfFileSize=4757513, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=814yQSdw3IBNihMzagyJaw==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=XBAR9X3UNBhUl/7cLhL4gQ==, mapNumber=null, fund=null)}, authors=[Author(id=1320423011145077635, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=daisyrm1126@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1320423011233158021, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, authorId=1320423011145077635, language=EN, stringName=Ruomeng YAN, firstName=Ruomeng, middleName=null, lastName=YAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1The Fourth Research and Design Engineering Corporation of CNNC,Shijiazhuang 050021,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1320423011296072582, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, authorId=1320423011145077635, language=CN, stringName=严若梦, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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严若梦(2000),女,主要研究方向为化工装备与控制工程,通信地址:050021河北省石家庄市体育南大街261号中核第四研究设计工程有限公司,E-mail:daisyrm1126@163.com。
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严若梦(2000),女,主要研究方向为化工装备与控制工程,通信地址:050021河北省石家庄市体育南大街261号中核第四研究设计工程有限公司,E-mail:daisyrm1126@163.com。
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2福州大学 化工学院,福州 350116, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1320423010796950390, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, xref=2, ext=[AuthorCompanyExt(id=1320423010805338999, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, companyId=1320423010796950390, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3Changzhou University,Changzhou 213164,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1320423013401613200, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, authorId=1320423013233841037, language=CN, stringName=张颖, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3常州大学,江苏 常州 213164, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1320423010868253561, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, xref=3, ext=[AuthorCompanyExt(id=1320423010876642170, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, companyId=1320423010868253561, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2College of Chemical Engineering,Fuzhou University,Fuzhou 350116,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1320423014081090463, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, authorId=1320423013934289820, language=CN, stringName=刘康林, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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The original microstructure of 30CrNiMo8 steel, figureFileSmall=yCq53QEWbVjsSNSUbzYKOA==, figureFileBig=814yQSdw3IBNihMzagyJaw==, tableContent=null), ArticleFig(id=1320423015163220909, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=CN, label=图1, caption=
30CrNiMo8钢的原始显微组织, figureFileSmall=yCq53QEWbVjsSNSUbzYKOA==, figureFileBig=814yQSdw3IBNihMzagyJaw==, tableContent=null), ArticleFig(id=1320423015343575982, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=EN, label=Fig.2, caption=
FE-SEM images of 30CrNiMo8 steel overtemperatured for 20 s at different overtemperatures, figureFileSmall=T+GrChGQsYBo04ABV94PIQ==, figureFileBig=xhSvMf86RYUK+YFG18u2Fg==, tableContent=null), ArticleFig(id=1320423015419073455, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=CN, label=图2, caption=
30CrNiMo8钢在不同超温温度下超温20 s的FE-SEM图, figureFileSmall=T+GrChGQsYBo04ABV94PIQ==, figureFileBig=xhSvMf86RYUK+YFG18u2Fg==, tableContent=null), ArticleFig(id=1320423015502959536, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=EN, label=Fig.3, caption=
Microstructure of 30CrNiMo8 steel treated at 860 ℃ for different overtemperature times, figureFileSmall=SJvTbvDm3KIrrNzxf/hkFg==, figureFileBig=3DCZOE0ossFt2YLZ+PUtXA==, tableContent=null), ArticleFig(id=1320423015582651313, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=CN, label=图3, caption=
30CrNiMo8钢在860 ℃下经不同超温时间处理的显微组织, figureFileSmall=SJvTbvDm3KIrrNzxf/hkFg==, figureFileBig=3DCZOE0ossFt2YLZ+PUtXA==, tableContent=null), ArticleFig(id=1320423015653954482, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=EN, label=Fig.4, caption=
Microstructure of 30CrNiMo8 steel treated by different overtemperature cycles at 860 ℃ for 20 s, figureFileSmall=6wIqIKJ9jnX5CaOvUTW89g==, figureFileBig=NYNAMeZYNg2xrdvzmUr/UA==, tableContent=null), ArticleFig(id=1320423015721063347, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=CN, label=图4, caption=
30CrNiMo8钢在860 ℃下超温20 s时经不同超温次数处理的显微组织, figureFileSmall=6wIqIKJ9jnX5CaOvUTW89g==, figureFileBig=NYNAMeZYNg2xrdvzmUr/UA==, tableContent=null), ArticleFig(id=1320423015804949428, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=EN, label=Fig.5, caption=
Qualitative curves of carbon concentration via EDS at 800 ℃ and 860 ℃, figureFileSmall=op80YJGdsUjXie0xGDKZ8Q==, figureFileBig=GVztUFKiekoxS160fnqcgw==, tableContent=null), ArticleFig(id=1320423015884641205, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=CN, label=图5, caption=
800 ℃及860 ℃下EDS碳浓度定性曲线, figureFileSmall=op80YJGdsUjXie0xGDKZ8Q==, figureFileBig=GVztUFKiekoxS160fnqcgw==, tableContent=null), ArticleFig(id=1320423017566557110, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=EN, label=Fig.6, caption=
The chemical concentration curves of alloying elements at 800 ℃ and 860 ℃, figureFileSmall=3LquM4f3wmoHBj68auKvgA==, figureFileBig=3FZTOPpBnPSQwhFfnWl9Mw==, tableContent=null), ArticleFig(id=1320423017683997623, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=CN, label=图6, caption=
800 ℃及860 ℃下合金元素的化学浓度变化曲线, figureFileSmall=3LquM4f3wmoHBj68auKvgA==, figureFileBig=3FZTOPpBnPSQwhFfnWl9Mw==, tableContent=null), ArticleFig(id=1320423017759495096, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=EN, label=Fig.7, caption=
Effect of temperature and time on Vickers hardness of 30CrNiMo8 steel under single short‑term overtemperature treatment, figureFileSmall=a6yvhnXNS4PD1swLUi+/VA==, figureFileBig=SuSXbgkp5e2068MGZg233g==, tableContent=null), ArticleFig(id=1320423017834992569, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=CN, label=图7, caption=
单次短时超温处理下温度与时间对30CrNiMo8钢维氏硬度的影响, figureFileSmall=a6yvhnXNS4PD1swLUi+/VA==, figureFileBig=SuSXbgkp5e2068MGZg233g==, tableContent=null), ArticleFig(id=1320423017906295738, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=EN, label=Fig.8, caption=
Effect of short‑term overtemperature cycles at 860 ℃ for 20 s on Vickers hardness of 30CrNiMo8 steel, figureFileSmall=GuZ0ndPedkYIVxhVnPHXTQ==, figureFileBig=4JNRjKfTBJ/GV2fxHtLWHA==, tableContent=null), ArticleFig(id=1320423017981793211, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=CN, label=图8, caption=
860 ℃及20 s条件下短时超温循环次数对30CrNiMo8钢维氏硬度的影响, figureFileSmall=GuZ0ndPedkYIVxhVnPHXTQ==, figureFileBig=4JNRjKfTBJ/GV2fxHtLWHA==, tableContent=null), ArticleFig(id=1320423018065679292, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=EN, label=Fig.9, caption=
Average load‑displacement curves of martensitic grains after short‑term overtemperature at 950 ℃ for 20 s and 30 s, figureFileSmall=oY4npIfqNORBjMCU54Iivw==, figureFileBig=yg7Zxms3gjWsnWUL+SahwA==, tableContent=null), ArticleFig(id=1320423018132788157, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=CN, label=图9, caption=
950 ℃短时超温20 s与30 s处理后马氏体晶粒的平均载荷-位移曲线, figureFileSmall=oY4npIfqNORBjMCU54Iivw==, figureFileBig=yg7Zxms3gjWsnWUL+SahwA==, tableContent=null), ArticleFig(id=1320423018199897022, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=EN, label=Tab.1, caption=
Chemical composition of 30CrNiMo8 steel
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| 元素 | C | Mn | Ni | Cr | Mo | Si | P | S |
|---|
| 实测值 | 0.29 | 0.43 | 1.92 | 1.98 | 0.33 | 0.27 | 0.013 | 0.001 |
), ArticleFig(id=1320423018267005887, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=CN, label=表1, caption=
30CrNiMo8钢的化学成分
, figureFileSmall=null, figureFileBig=null, tableContent=
| 元素 | C | Mn | Ni | Cr | Mo | Si | P | S |
|---|
| 实测值 | 0.29 | 0.43 | 1.92 | 1.98 | 0.33 | 0.27 | 0.013 | 0.001 |
), ArticleFig(id=1320423018329920448, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423006397125469, language=EN, label=Tab.2, caption=
Nanoindentation hardness of martensitic grains and elastic modulus of the material after short‑term overheating at 950 ℃ for 20 s and 30 s
, figureFileSmall=null, figureFileBig=null, tableContent=
| 超温条件 | 纳米硬度平均值/GPa | 弹性模量/GPa |
|---|
| 950 ℃超温20 s | 317.75 | 126.58 |
| 950 ℃超温30 s | 333.76 | 156.67 |
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950 ℃短时超温处理20 s与30 s后马氏体晶粒的纳米压痕硬度及材料弹性模量
, figureFileSmall=null, figureFileBig=null, tableContent=
| 超温条件 | 纳米硬度平均值/GPa | 弹性模量/GPa |
|---|
| 950 ℃超温20 s | 317.75 | 126.58 |
| 950 ℃超温30 s | 333.76 | 156.67 |
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