Plasma Cladding and High-Efficient CO_2 Laser Cladding of Nickel Based Alloy Powder on the Machinery Parts(Laser processing)

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概要

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• The SUS316L stainless steel is widely used as the machinery parts for chemical plant and power plant. In order to improve the wear- and corrosion-resistance quality of parts, usually, the plasma process has been adopted to clad Co-based and Ni-based alloys powder on parts surface of SUS316L stainless steel. In the present work, the CO_2 laser (CW-2.4kW) cladding of low residual stress and small distortion, and plasma cladding were investigated to deposit Ni-based alloy powder (WELPC-6) on the cylindrical prod for power plant. The smooth clad bead was obtained by CO_2 laser cladding. The phases of clad layer were investigated by an optical microscope, scanning electron microscopy (SEM), X-ray diffractometer (XRD), electron probe microanalysis (EPMA), and energy-dispersive spectrometer (EDS). The microstructures of clad layers belong to a hypereutectic structure. Primary phases consist of boride CrB and carbide Cr_7C_3. The eutectic structure consists ofγ-Ni+Cr_2B or γ-Ni+Cr_<23>C_6. Comparing with the plasma cladding, the fine microstructures, low dilutions, high Vickers hardness and excellent wear-resistance were obtained by CO_2 laser cladding.

• 一般社団法人日本機械学会の論文
• 2005-10-18

著者

• Haneda Mitsuaki

  Hitachi Seisakusho

• XU Guojian

  Student, Dept. of Materials Science and Eng., School of Eng., Nagoya University

• KUTSUNA Munaharu

  Dept. of Materials Science and Eng., School of Eng., Nagoya University

• ZHANG Hong

  Dept. of Materials Science and Eng., School of Eng., Nagoya University

• LIU Zhongjie

  Student, Dept. of Materials Science and Eng., School of Eng., Nagoya University

• KOIDE Hiroo

  HITACHI SEISAKUSHO

• Xu Guojian

  Materials Physics And Energy Engineering Graduate School Of Eng. Nagoya University

• Liu Zhongjie

  Materials Physics And Energy Engineering Graduate School Of Eng. Nagoya University

• Kutsuna Munaharu

  Materials Physics And Energy Engineering Graduate School Of Eng. Nagoya University

• Zhang Hong

  Dept. Of Materials Science And Eng. School Of Eng. Nagoya University

関連論文

• Plasma Cladding and High-Efficient CO_2 Laser Cladding of Nickel Based Alloy Powder on the Machinery Parts(Laser processing)
• CO_2 Laser Cladding and Plasma Cladding of Ni-Based Alloy Powder on the SUS316LN Stainless Steel(Advanced Manufacturing Technology (II))
• Spontaneous Rupture of Primary Hepatocellalur Carcinoma : Single Center Experience of Emergency Laparotomy in 28 Cases
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