高级检索
    谷志刚, 杜宏建, 李伟航, 由向群. 冷凝塔地脚螺栓断裂失效分析[J]. 机械工程材料, 2007, 31(2): 59-61.
    引用本文: 谷志刚, 杜宏建, 李伟航, 由向群. 冷凝塔地脚螺栓断裂失效分析[J]. 机械工程材料, 2007, 31(2): 59-61.
    shu
    GU Zhi-gang, DU Hong-jian, LI Wei-hang, YOU Xiang-qun. Failure Analysis on Barb Bolt of a Condensing Tower[J]. Materials and Mechanical Engineering, 2007, 31(2): 59-61.
    Citation: GU Zhi-gang, DU Hong-jian, LI Wei-hang, YOU Xiang-qun. Failure Analysis on Barb Bolt of a Condensing Tower[J]. Materials and Mechanical Engineering, 2007, 31(2): 59-61.
    shu

    冷凝塔地脚螺栓断裂失效分析

    Failure Analysis on Barb Bolt of a Condensing Tower

      摘要
    • 摘要: 通过宏观、化学成分、金相、断口与能谱分析等方法,对冷凝塔地脚螺栓的断裂进行了失效分析.结果表明:螺栓在服役2 a后就发生了断裂,主要是因为螺栓加工不良和钢中存在严重的偏析与夹杂物等冶金缺陷;在交变拉应力作用下,使得螺栓在螺纹沟处发生脆性疲劳断裂.

       

      Abstract: The failure of the barb bolts in a condensing tower was studied by means of macrostructure,composition,metallography,fractography,EDS etc.The bolts was fractured after used for two years,resulting from bad working and serious metallurgical defects ,such as segregation and inclusion.The cracks are originated in the bottom of the screw thread due to fatigue fracture.

       

      • HTML全文
      • 参考文献(4)
      • 相关文章
      • 施引文献
    • 资源附件(0)

    /

    返回文章
    返回