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    ZHANG Xu-ping, HAN Wei-hong, REN Yao-jian. Failure Analysis on the Welded Joint Cracking of Boiler Pipe of Power Plant[J]. Materials and Mechanical Engineering, 2006, 30(11): 95-98.
    Citation: ZHANG Xu-ping, HAN Wei-hong, REN Yao-jian. Failure Analysis on the Welded Joint Cracking of Boiler Pipe of Power Plant[J]. Materials and Mechanical Engineering, 2006, 30(11): 95-98.
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    Failure Analysis on the Welded Joint Cracking of Boiler Pipe of Power Plant

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    • Received Date: January 19, 2006
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    • The leaking of nozzle stub of boiler furnace at service was discovered and investigated.The results show that the temperature at welding joint is too high and lead grain become bulky in heat-affected zone.Some restraint stress and cracks are produced in welding joint for the fast cooling velocity after welding at heat-affected zone in steel 102,subscale is formed at repairing welding and lead the existence crack extended further,nozzle stub leaked at crack finally.
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      • References (2)
    • [1]
      胡光立.钢的热处理[M].西安:西北工业大学出版社,1996.
      [2]
      陶达天.金相检验实例[M].北京:机械工业出版社,1983.
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