| Cr12MoV钢CD渗碳后M／B_下复相组织对自攻钉搓丝板疲劳磨损失效的影响EI |
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| 引用本文： | 王兴贵 卢弘. Cr12MoV钢CD渗碳后M／B_下复相组织对自攻钉搓丝板疲劳磨损失效的影响EI[J]. 材料工程, 1995, 0(2): 27-29 |
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| 作者姓名： | 王兴贵 卢弘 |
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| 作者单位： | 天津理工学院一分院，天津无缝钢管公司 |
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| 摘 要： | 分析了Ｃｒ１２ＭｏＶ钢渗碳等温处理后各区域的组织、弯曲断口形貌和自攻钉搓丝板疲劳磨损的机理，以及Ｍ／Ｂ_下复相组织对疲劳磨损的影响。试验结果表明，表层高含碳量的Ｍ推迟疲劳裂纹的形核期，Ｍ／Ｂ_下复相组织阻碍疲劳裂纹的扩展，认为高碳高合金模具钢通过ＣＤ渗碳等温处理是提高模具服役寿命的有效途径。
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| 关 键 词： | 渗碳 模具钢 疲劳 磨损 Cr12MoV钢 CD carburizing Duplex microstructure of M/B Fatigue wear |
Effect of Duplex Microstructures of CD Carburized of Cr12MoV Steel on the Failure of Fatigue Wear in Self-Tapping Screw Dies |
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| Wang Xinggui, Liu Chunmei, Xia Liming. Effect of Duplex Microstructures of CD Carburized of Cr12MoV Steel on the Failure of Fatigue Wear in Self-Tapping Screw Dies[J]. Journal of Materials Engineering, 1995, 0(2): 27-29 |
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| Authors: | Wang Xinggui Liu Chunmei Xia Liming |
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| Affiliation: | Wang Xinggui; Liu Chunmei; Xia Liming (The First College Attached to the University of Science and Engineering Tianjin)Lu Hong ;Ning Mei(The Seamless Steel Pipe Corporation TianJin) |
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| Abstract: | his paper deals with the duplex microstructures of M/ B formed during austemepring after CD carbur-izing,the bending fracture topography,the michanism of fatigue wear in self-tapping screw dies and effectof duplex microstructure of M/ B on fatigue wear.The test revealed that the nucleation peried of fatiguecrack is put off because the martensite in carburizing layer keeps high carbon content,duplex microstruc-ture of M/Ehinder the spread of fatigue crack.The process of austemepring after CD carburing in highcarbon and alloy elements die steel seems to be effective methed that prolongs service life of dies. |
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| Keywords: | CD carburizing Duplex microstructure of M/B Fatigue wear |
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