Article(id=1208718238595289832, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1208718233222386276, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20230364, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1766110484980, onlineDateStr=2025-12-19, pubDate=1721404800000, pubDateStr=2024-07-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1766110484980, onlineIssueDateStr=2025-12-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766110484980, creator=13701087609, updateTime=1766110484980, updator=13701087609, issue=Issue{id=1208718233222386276, tenantId=1146029695717560320, journalId=1189873562199433220, year='2024', volume='', issue='7', pageStart='1', pageEnd='72', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1766110483699, creator=13701087609, updateTime=1766110483699, updator=13701087609, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=45, endPage=48, ext={EN=ArticleExt(id=1208718238905668340, articleId=1208718238595289832, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Causes Analysis of Wear and Failure of Engine Valve Guide, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Currently, with the continuous improvement of engine performance, the working environment of the valve guide has become more harsh, so the failure problem of the valve guide has become more and more common. A comparative analysis of the durable and failed components of the engine exhaust valve guide is conducted to identify the causes of material failure. The wear resistance, microstructure, and porosity of the valve guide are studied. The results show that the wear test results of the 2 specimens are consistent with the bench test results, and the failed specimen experiences wear serious. The microstructure of both is consistent with a small amount of pearlite and a large amount of irregular pearlite and alloy phase and pores. The porosity results indicate that the durable specimen has a higher porosity ratio, storing more oil and with a density meeting the standard. However, the failed specimen has a large hole with a diameter of 100 μm, which reduces its wear resistance. Therefore, the cause of wear failure is identified as lower porosity and the existence of larger pores.
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随着发动机性能的不断提升,气门导管的工作环境也变得更为恶劣,导致气门导管的失效问题频发,对发动机排气门导管的耐久件和失效件进行对比分析寻找材料失效的原因。对导管的耐磨性能、显微组织和孔隙进行分析,结果表明,2个工件的耐磨试验结果符合台架试验结果,失效件磨损严重;2个样品的显微组织一致,均为少量珠光体+大量不规则珠光体+合金相+孔隙;耐久件孔隙率占比高,储油多且密度符合标准,失效件内部存在直径100 μm的大孔隙,降低耐磨性能。故导致磨损失效的原因为较低的孔隙率和存在较大的孔隙。
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郭福建(1990—),男,博士学位,研究方向为高性能钢铁材料设 计与应用技术研究。
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1 Materials Science and Engineering, Guangdong Ocean University, Yangjiang 529500
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1 广东海洋大学材料科学与工程学院, 阳江 529500
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郭福建(1990—),男,博士学位,研究方向为高性能钢铁材料设 计与应用技术研究。
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郭福建(1990—),男,博士学位,研究方向为高性能钢铁材料设 计与应用技术研究。
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2 Yangjiang Alloy Materials Laboratory, Yangjiang 529500
3 State Key Laboratory of New Metals, University of Science and Technology Beijing, Beijing 100083, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1208739373038833719, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1208718238595289832, authorId=1208739372866867244, language=CN, stringName=刘文乐, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 阳江合金材料实验室, 阳江 529500
3 北京科技大学新金属国家重点实验室, 北京 100083, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1208739372124476413, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1208718238595289832, xref=2, ext=[AuthorCompanyExt(id=1208739372132865022, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1208718238595289832, companyId=1208739372124476413, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2 Yangjiang Alloy Materials Laboratory, Yangjiang 529500
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2 阳江合金材料实验室, 阳江 529500
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2 Yangjiang Alloy Materials Laboratory, Yangjiang 529500
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2 阳江合金材料实验室, 阳江 529500
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3 北京科技大学新金属国家重点实验室, 北京 100083)])])], keywords=[Keyword(id=1208739374955630701, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1208718238595289832, language=EN, orderNo=1, keyword=Valve guide), Keyword(id=1208739375052099698, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1208718238595289832, language=EN, orderNo=2, keyword=Wear failure), Keyword(id=1208739375148568694, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1208718238595289832, language=EN, orderNo=3, keyword=Microstructure), Keyword(id=1208739375270203512, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1208718238595289832, language=EN, orderNo=4, keyword=Pore), Keyword(id=1208739375433781373, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1208718238595289832, language=CN, orderNo=1, keyword=气门导管), Keyword(id=1208739375534444671, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1208718238595289832, language=CN, orderNo=2, keyword=磨损失效), Keyword(id=1208739375618330757, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1208718238595289832, language=CN, orderNo=3, keyword=显微组织), Keyword(id=1208739375731576972, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1208718238595289832, language=CN, orderNo=4, keyword=孔隙)], refs=[Reference(id=1208739377543516350, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1208718238595289832, doi=null, pmid=null, pmcid=null, year=2016, volume=45, issue=20, pageStart=255, pageEnd=258, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=张孝超, 宣天鹏, 戴泽玉, journalName=热加工工艺, refType=null, unstructuredReference=张孝超, 宣天鹏, 戴泽玉, 等. 汽车发动机排气门导管的偏磨失效分析[J].
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