Article(id=1325115385036538700, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1325115367466611474, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1303315200000, receivedDateStr=2011-04-21, revisedDate=1318348800000, revisedDateStr=2011-10-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1793861727246, onlineDateStr=2026-11-05, pubDate=1371225600000, pubDateStr=2013-06-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793861727246, onlineIssueDateStr=2026-11-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793861727246, creator=13701087609, updateTime=1793861727246, updator=13701087609, issue=Issue{id=1325115367466611474, tenantId=1146029695717560320, journalId=1255847867265597444, year='2013', volume='27', issue='3', pageStart='313', pageEnd='472', issueExtLink='null', onlineDate='null', pubDate='1371225600000', pubDateStr='2013-06-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793861723056, creator='13701087609', updateTime=1793861723056, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=337, endPage=342, ext={EN=ArticleExt(id=1325115385221088077, articleId=1325115385036538700, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Microstructure and Mechanical Properties of Internal Thread during Cold Extrusion for Q460 High Strength Steel, columnId=null, journalTitle=Chinese Journal of High Pressure Physics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

According to the forming process of internal thread, the microstructure, microhardness and mechanical properties of internal thread surface layer were investigated. The microstructure change and deformation mechanism, harden ability and depth of hardening layers on the crest, the flank and the root of the thread along the layer depth direction were obtained. The results showed that the grains on the surface layers of the thread were refined after the cold extrusion. Fibrous structure of the metal surfaces on the root of thread was pressed to distinguish the grains difficultly, and formed a layer of flown line and smoothly rounded the root to flow from the flank to the crest. The grains on the root were the smallest, followed by the flank and the crest. In the extrusion processes, the microhardness and the tensile strength of the material were increased significantly, and the plasticity and the toughness were decreased. The work-hardening phenomenon greatly increased the surface texture and the mechanical strength of internal thread with cold extrusion.

, authors=Hong MIAO1, Dun-Wen ZUO2, Rui-Hong ZHANG1, authorsList=Hong MIAO, Dun-Wen ZUO, Rui-Hong ZHANG, authorCompany=null, correspAuthors=Dun-Wen ZUO, 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=1325115385418220366, articleId=1325115385036538700, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=Q460高强度钢冷挤压内螺纹的表层显微组织及力学性能, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

根据冷挤压内螺纹的成型过程,对螺纹表层的微观结构、显微硬度和力学性能进行了测试,得到了牙顶、牙侧和牙底3个位置硬化程度、硬化层深度及沿层深的组织变化规律。结果表明,冷挤压加工可使内螺纹表层组织显著细化,在挤压过程中,表层纤维组织被压紧到难以分辨出晶粒的程度,形成一层流线,平稳绕过牙底并沿牙侧向牙顶方向流动。其中牙根处晶粒最细,牙顶处晶粒最粗,牙侧部分介于二者之间。同时,挤压过程中螺纹表层的显微硬度与抗拉强度显著增加,而塑性和韧性出现下降,产生了加工硬化现象,大大提高了冷挤压内螺纹的表面质量和机械强度。

, authors=缪宏1, 左敦稳2, 张瑞宏1, authorsList=缪宏, 左敦稳, 张瑞宏, authorCompany=null, correspAuthors=左敦稳, authorNote=

缪宏(1981—),男,博士,讲师,主要从事抗疲劳制造技术研究. E-mail:

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左敦稳(1962—),男,博士,教授,主要从事抗疲劳制造技术与精密加工技术研究. E-mail:
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缪宏(1981—),男,博士,讲师,主要从事抗疲劳制造技术研究. E-mail:

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Q460高强度钢冷挤压内螺纹的表层显微组织及力学性能
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缪宏 1 , 左敦稳 2 , 张瑞宏 1
高压物理学报 | 2013,27(3): 337-342
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高压物理学报 | 2013 , 27 (3) : 337 -342
Q460高强度钢冷挤压内螺纹的表层显微组织及力学性能
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缪宏1 , 左敦稳2 , 张瑞宏1
作者信息
  • 1.扬州大学机械工程学院,江苏 扬州 225009
  • 2.南京航空航天大学机电学院,江苏 南京 210016
通讯作者:
左敦稳(1962—),男,博士,教授,主要从事抗疲劳制造技术与精密加工技术研究. E-mail:
作者简介:

缪宏(1981—),男,博士,讲师,主要从事抗疲劳制造技术研究. E-mail:

Microstructure and Mechanical Properties of Internal Thread during Cold Extrusion for Q460 High Strength Steel
Hong MIAO1 , Dun-Wen ZUO2 , Rui-Hong ZHANG1
Affiliations
  • 1.College of Mechanical Engineering, yangzhou University, yangzhou 225000, China
  • 2.Mechanical Engineering Institute, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
出版时间: 2013-06-15
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根据冷挤压内螺纹的成型过程,对螺纹表层的微观结构、显微硬度和力学性能进行了测试,得到了牙顶、牙侧和牙底3个位置硬化程度、硬化层深度及沿层深的组织变化规律。结果表明,冷挤压加工可使内螺纹表层组织显著细化,在挤压过程中,表层纤维组织被压紧到难以分辨出晶粒的程度,形成一层流线,平稳绕过牙底并沿牙侧向牙顶方向流动。其中牙根处晶粒最细,牙顶处晶粒最粗,牙侧部分介于二者之间。同时,挤压过程中螺纹表层的显微硬度与抗拉强度显著增加,而塑性和韧性出现下降,产生了加工硬化现象,大大提高了冷挤压内螺纹的表面质量和机械强度。

内螺纹  /  挤压成型  /  显微组织  /  力学性能

According to the forming process of internal thread, the microstructure, microhardness and mechanical properties of internal thread surface layer were investigated. The microstructure change and deformation mechanism, harden ability and depth of hardening layers on the crest, the flank and the root of the thread along the layer depth direction were obtained. The results showed that the grains on the surface layers of the thread were refined after the cold extrusion. Fibrous structure of the metal surfaces on the root of thread was pressed to distinguish the grains difficultly, and formed a layer of flown line and smoothly rounded the root to flow from the flank to the crest. The grains on the root were the smallest, followed by the flank and the crest. In the extrusion processes, the microhardness and the tensile strength of the material were increased significantly, and the plasticity and the toughness were decreased. The work-hardening phenomenon greatly increased the surface texture and the mechanical strength of internal thread with cold extrusion.

internal thread  /  extrusion process  /  microstructure  /  mechanical properties
缪宏, 左敦稳, 张瑞宏. Q460高强度钢冷挤压内螺纹的表层显微组织及力学性能. 高压物理学报, 2013 , 27 (3) : 337 -342 .
Hong MIAO, Dun-Wen ZUO, Rui-Hong ZHANG. Microstructure and Mechanical Properties of Internal Thread during Cold Extrusion for Q460 High Strength Steel[J]. Chinese Journal of High Pressure Physics, 2013 , 27 (3) : 337 -342 .
  • 国家863计划(SQ2008AA10XK1468859)
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2013年第27卷第3期
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  • 接收时间:2011-04-21
  • 首发时间:2026-11-05
  • 出版时间:2013-06-15
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  • 收稿日期:2011-04-21
  • 修回日期:2011-10-12
基金
国家863计划(SQ2008AA10XK1468859)
作者信息
    1.扬州大学机械工程学院,江苏 扬州 225009
    2.南京航空航天大学机电学院,江苏 南京 210016

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左敦稳(1962—),男,博士,教授,主要从事抗疲劳制造技术与精密加工技术研究. E-mail:
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2种不同金属材料的力学参数
科
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属数
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genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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