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局部热处理对SPCC冷轧钢压印接头组织及静力学性能的影响

刘福龙, 何晓聪, 曾凯, 王医锋

刘福龙, 何晓聪, 曾凯, 王医锋. 局部热处理对SPCC冷轧钢压印接头组织及静力学性能的影响[J]. 焊接学报, 2015, 36(10): 41-43,48.
引用本文: 刘福龙, 何晓聪, 曾凯, 王医锋. 局部热处理对SPCC冷轧钢压印接头组织及静力学性能的影响[J]. 焊接学报, 2015, 36(10): 41-43,48.
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LIU Fulong, HE Xiaocong, ZENG Kai, WANG Yifeng. Effect of local heat treatment on microstructure and statics properties of clinched joints for SPCC steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(10): 41-43,48.
Citation: LIU Fulong, HE Xiaocong, ZENG Kai, WANG Yifeng. Effect of local heat treatment on microstructure and statics properties of clinched joints for SPCC steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(10): 41-43,48.
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局部热处理对SPCC冷轧钢压印接头组织及静力学性能的影响

  • 昆明理工大学 机电工程学院, 昆明 650500

基金项目: 国家自然科学基金资助项目(50965009)

Effect of local heat treatment on microstructure and statics properties of clinched joints for SPCC steel

  • Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China

摘要

    摘要
  • 摘要: 通过组建局部热处理试验装置,对压印接头进行局部热处理,之后制备金相试样,以观察热处理后压印接头的金相组织,检测热处理前与热处理后接头的组织硬度. 并对热处理前与热处理后的压印试件进行拉伸-剪切试验,对比热处理前与热处理后接头的静强度. 结果表明,局部热处理使压印接头部位材料由铁素体与珠光体组织发生转变出现马氏体组织;与前者相比,马氏体组织具有较高的强度与硬度,马氏体组织的这种特征最终使接头静强度得到大幅提升.
    Abstract: Local heat treatment was performed on the clinched joints by building an experiment apparatus for local heat treatment. The metallographic specimens were prepared to observe the microstructure of the specimen with heat treatment. The microhardness was measured on the specimens with heat treatment or without. The influence of heat treatment on the static tensile strength of clinched joints was analyzed by comparing two groups of specimen with heat treatment or the one without heat treatment. The results showed that the material of the clinched joints had martensitic structure after heat treatment. The static strength of the clinched joints was promoted largely owing to the martensitic structure compared to the ferrite and pearlite structure of clinched joints had not been treated.
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    • 参考文献(13)
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    [12] 胡美娟, 刘金合, 康文军, 等. 电子束局部热处理对TC4钛合金焊接接头组织和性能的影响[J]. 焊接学报, 2008, 29(2): 104-107. Hu Meijuan, Liu Jinhe, Kang Wenjun, et al. Effects of local heat treatment by electron beam on microstruc-ture and properties of TC4 titanium alloy welded joint[J]. Transactions of the China Welding Institution, 2008, 29(2): 104-107.
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  • 收稿日期:  2014-01-12

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