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Volume 20 Issue 6
Sep.  2013
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Article Navigation >  LASER TECHNOLOGY  > 1996 >  20(6): 335-337

Citation:
shu

Microstructure and property of cast aluminium alloy after laser remelted treatment

  • 1.

    Shanghai University of Engineering Science

  • Received Date: 1995-09-06
    Accepted Date: 1996-01-16
  • By means of the optical microscope,scanning electron microscope and microhardness meter,the paper deals with the microstructure and property of a cost aluminum alloy after laser remelted treatment.The microstructure can be divided into remelted zone,transition layer and substrate.In the remelted zone,the width of dendritical pro eutectic α phase has been fined to 2～3μm from 20～40μm original state.Meanwhile the eutectic microstructure has also been broken up extremely.These changes make the microhardness of the treated surface be increased to 109～115μm from 67.4.
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  • [1] 李应堂,余风伦,李庆春主编.现代汽车铝铸件.上海:上海科学技术出版社,1990:253
    [2] 虞觉奇,易文质,陈邦迪 et al.编译.二元合金状态图集.上海:上海科学技术出版社,1987:712
    [3] 朱祖昌,张光钧,王维荣 et al.中国激光,1991;18(2):132
    [4] 朱祖昌,潘惠泉.金属学报,1991;27(2):A 121
    [5]

    Flemings M C.Solidification processing. New York:McGraw-Hill,1974:364
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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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Microstructure and property of cast aluminium alloy after laser remelted treatment

  • 1. Shanghai University of Engineering Science
  • Received Date: 1995-09-06
  • Accepted Date: 1996-01-16
  • Available Online: 1996-11-25

Abstract: By means of the optical microscope,scanning electron microscope and microhardness meter,the paper deals with the microstructure and property of a cost aluminum alloy after laser remelted treatment.The microstructure can be divided into remelted zone,transition layer and substrate.In the remelted zone,the width of dendritical pro eutectic α phase has been fined to 2～3μm from 20～40μm original state.Meanwhile the eutectic microstructure has also been broken up extremely.These changes make the microhardness of the treated surface be increased to 109～115μm from 67.4.

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