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LASER SURFACE REINFORCEMENT OF THE Ti/Al TIG WELDED JOINT

Author

Listed:
  • ZHIYUN YE

    (School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, P. R. China)

  • JIANING LI

    (School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, P. R. China)

  • JUAN WANG

    (#x2020;School of Materials Science and Engineering, Shandong University, Jinan 250061, China)

  • SHUBO XU

    (School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, P. R. China)

  • CAINIAN JING

    (School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, P. R. China)

  • YANHUA ZHAO

    (#xA7;School of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, P. R. China)

  • GUANCHAO LI

    (#x2021;Faculty for Energy, Clausthal University of Technology, Clausthal-Zellerfeld 38678, Germany)

  • XINZHU GAN

    (School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, P. R. China)

  • FUKUN MA

    (School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, P. R. China)

  • FUSHENG YU

    (#xA7;School of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, P. R. China)

Abstract

The microstructure of the Ti/Al weld seam (WS) was uniform, and a good metallurgy bond between TC4/5052 aluminum alloy substrates was obtained without obvious defects after the Tungsten inert gas (TIG) process. Then, a remelt layer (RL) with fine microstructure can be formed by means of a laser remelting (LR) technique of the Ti/Al TIG joints. The Ti–Al intermetallics were produced adhered to the weld joints’ surface, exhibiting the extreme high surface hardness. The micro-hardness distribution of this RL surface was in a range of 1150–1200 HV0.2, which was significantly higher than that of the TC4 titanium alloy substrate. The high micro-hardness of the weld joints’ surface can be mainly ascribed to the actions of the Ti–Al intermetallics, the fine grain and the solid solution strengthening.

Suggested Citation

  • Zhiyun Ye & Jianing Li & Juan Wang & Shubo Xu & Cainian Jing & Yanhua Zhao & Guanchao Li & Xinzhu Gan & Fukun Ma & Fusheng Yu, 2020. "LASER SURFACE REINFORCEMENT OF THE Ti/Al TIG WELDED JOINT," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 27(12), pages 1-5, December.
    • Handle: RePEc:wsi:srlxxx:v:27:y:2020:i:12:n:s0218625x2050016x
    DOI: 10.1142/S0218625X2050016X
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    Cited by:

    1. Tatiana de Macedo Nogueira Lima, 2022. "Documento de Trabalho 03/2022 - Aprendizado de máquina e antitruste," Documentos de Trabalho 2022030, Conselho Administrativo de Defesa Econômica (Cade), Departamento de Estudos Econômicos.

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