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MICROSCOPIC MORPHOLOGY AND MICROSTRUCTURE OFTi-NANDTi-NiPHASE BETWEEN THE DILUTION ZONE AND THE CLAD ZONE IN LASER REMELTINGNiCrBSi/TiNLAYER ONTi-6Al-4VALLOY SURFACE

Author

Listed:
  • RONGXIANG LIU

    (School of Material Science and Engineering, Harbin Institute of Technology, P. O. Box 433, Harbin 150001, P. R. China)

  • LIXIN GUO

    (School of Material Science and Engineering, Harbin Institute of Technology, P. O. Box 433, Harbin 150001, P. R. China)

  • TINGQUAN LEI

    (School of Material Science and Engineering, Harbin Institute of Technology, P. O. Box 433, Harbin 150001, P. R. China)

Abstract

The microscopic morphology and microstructure ofTi-NandTi-Niphase between the dilution zone and the clad zone in laser remeltingNiCrBSi/TiNlayer on aTi-6Al-4Valloy were characterized using TEM and SEM. The experimental results showed that during laser irradiation heating,TiNparticles were partially dissolved into the meltedNi-base alloy, and the dissolvedTiandNatoms were precipitated in the form ofTiN,TiN0.3.Tiexhibits height activity, it combines withNiformingTi2Ni,TiNimatrix intermetallic during laser remelting, faults exist in theTi2NiandTiNiphase, and crystal lattice ofTiNiphase is superlattice. Lastly, the cause of the formation of theTi-NandTi-Niphase is discussed.

Suggested Citation

  • Rongxiang Liu & Lixin Guo & Tingquan Lei, 2004. "MICROSCOPIC MORPHOLOGY AND MICROSTRUCTURE OFTi-NANDTi-NiPHASE BETWEEN THE DILUTION ZONE AND THE CLAD ZONE IN LASER REMELTINGNiCrBSi/TiNLAYER ONTi-6Al-4VALLOY SURFACE," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 11(06), pages 497-502.
    • Handle: RePEc:wsi:srlxxx:v:11:y:2004:i:06:n:s0218625x04006530
    DOI: 10.1142/S0218625X04006530
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