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Volume 23 Issue 3
Sep.  2013
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Article Navigation >  LASER TECHNOLOGY  > 1999 >  23(3): 142-145

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Effect of Creq/Nieq composition on structure and crack susceptibility of laser-clad Fe-base coating

  • 1.

    State Key Laboratory of Plastic Forming Simulation and Die and Mould Technology, HUST, Wuhan, 430074

  • Received Date: 1998-05-07
    Accepted Date: 1998-11-03
  • The crack of laser claded alloy also is a trouble thing in laser welding technique.In our study,we use the crackle density to indicate the crack susceptibility.It is shown that the Creq/Nieq composition has significant effect on the structure and the crack susceptibility of laser clad Fe-Cr-Ni coating.With the increasing of Creq/Nieq composition,the δ-Fe composition appears and becomes more and more,and the microstructure of the laser clad alloy changes.The crack susceptibility of the alloy is the lowest when Creq/Nieq composition is about 1.5 and δ-Fe composition is in the range of 5%～8%.
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  • [1]

    Dekumbis R.Controlling residual stresses in laser cladded coatings.Proc of the 6th Int.Conf.on Laser in Manufacturing,Birmingham,U K.1989
    [2]

    Song W L.Surface and Coatings Technology,1996;18(2)
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    Smitch J J.International Materials Reviews,1993;38(1)
    [4]

    Brooks J A.International Materials Reviews,1991;36(1)
    [5] 崔昆主编钢铁材料及有色金属材料.北京:机械工业出版社,1981:223
    [6] 陈伯蠡主编焊接冶金原理.北京:清华大学出版社,1991
    [7] 张文钺主编金属熔焊原理及工艺.北京:机械工业出版社,1981
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Effect of Creq/Nieq composition on structure and crack susceptibility of laser-clad Fe-base coating

  • 1. State Key Laboratory of Plastic Forming Simulation and Die and Mould Technology, HUST, Wuhan, 430074
  • Received Date: 1998-05-07
  • Accepted Date: 1998-11-03
  • Available Online: 1999-05-25

Abstract: The crack of laser claded alloy also is a trouble thing in laser welding technique.In our study,we use the crackle density to indicate the crack susceptibility.It is shown that the Creq/Nieq composition has significant effect on the structure and the crack susceptibility of laser clad Fe-Cr-Ni coating.With the increasing of Creq/Nieq composition,the δ-Fe composition appears and becomes more and more,and the microstructure of the laser clad alloy changes.The crack susceptibility of the alloy is the lowest when Creq/Nieq composition is about 1.5 and δ-Fe composition is in the range of 5%～8%.

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