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Elucidation of microstructure and wear behaviors of Ti–6Al–4V cladding using tungsten boride powder by the GTAW method

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Abstract

Tungsten boride (WB) powder was used as a wear-resistance material, then clad on a Ti–6Al–4V substrate by the gas tungsten arc welding (GTAW) method. The titanium boride (TiB) reinforcing phase was formed in situ in the clad layer during the cladding process. Since the TiB and tungsten (W) reinforcing phase exist in the clad layer, the hardness of the clad layer is double that of the substrate. Wear test results reveal that the tribological performance of the WB-clad layer is superior to that of the Ti–6Al–4V substrate. This investigation also discusses the forming mechanism of the clad layer microstructure.

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Acknowledgments

The authors would like to thank the National Science Council of the Republic of China, Taiwan, for financially supporting this research under Contract No. NSC97-2221-E-011-035.

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Authors and Affiliations

  1. Department of Mechanical Engineering, National Taiwan University of Science and Technology, 43, Keelung Road, Section 4, Taipei 106, Taiwan, ROC

    Yuan-Ching Lin & Yu-Chi Lin

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  1. Yuan-Ching Lin
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  2. Yu-Chi Lin
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Correspondence to Yuan-Ching Lin.

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Lin, YC., Lin, YC. Elucidation of microstructure and wear behaviors of Ti–6Al–4V cladding using tungsten boride powder by the GTAW method. J Coat Technol Res 8, 247–253 (2011). https://doi.org/10.1007/s11998-010-9281-2

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