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Micro-Structures Of Hard Coatings Deposited On Titanium Alloys By Laser Alloying Technique

Author

Listed:
  • WEI LI

    (Key Laboratory for Liquid–Solid Structural Evolution, and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China)

  • HUIJUN YU

    (School of Mechanical Engineering, Shandong University, Jinan 250061, China)

  • CHUANZHONG CHEN

    (Key Laboratory for Liquid–Solid Structural Evolution, and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China)

  • DIANGANG WANG

    (Key Laboratory for Liquid–Solid Structural Evolution, and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China)

  • FEI WENG

    (Key Laboratory for Liquid–Solid Structural Evolution, and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China)

Abstract

This work is based on micro-structural performance of theTi–B4C–Claser alloying coatings onTi–6Al–4Vtitanium alloy. The test results indicated that laser alloying of theTi–B4C–Cpre-placed powders on theTi–6Al–4Valloy substrate can form the ceramics reinforced hard alloying coatings, which increased the micro-hardness and wear resistance of substrate. The test result also indicated that theTiBphase was produced in alloying coating, which corresponded to its (101) crystal plane. In addition, yttria has a refining effect on micro-structures of the laser alloying coating, and its refinement mechanism was analyzed. This research provided essential experimental and theoretical basis to promote the applications of the laser alloying technique in manufacturing and repairing of the aerospace parts.

Suggested Citation

  • Wei Li & Huijun Yu & Chuanzhong Chen & Diangang Wang & Fei Weng, 2013. "Micro-Structures Of Hard Coatings Deposited On Titanium Alloys By Laser Alloying Technique," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 20(01), pages 1-6.
    • Handle: RePEc:wsi:srlxxx:v:20:y:2013:i:01:n:s0218625x13500078
    DOI: 10.1142/S0218625X13500078
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