Effects of Boron and Carbon Added Titanium Filler on Microstructure and Mechanical Properties of Ti-15-3 Alloy Weldments

  • Authors

    • Izzul Adli Bin Mohd Arif
    • Mahesh Kumar Talari
    • N Kishore Babu
    • Ahmad Lutfi Bin Anis
    • Muhammad Hussain Ismail
    • Rosmamuhamadani Bin Ramli
    2019-12-24
    https://doi.org/10.14419/ijet.v7i4.14.27786
  • Boron, Carbon, Grain Refinement, GTAW, Ti-15-3

  • Abstract

    Microstructural and mechanical properties beta Titanium (β-Ti) weldments can be improved by grain refinement and formation of insoluble precipitates in the weld. This paper reports the effect of Boron (B) and Carbon (C) addition to Ti-15V-3Cr-3Sn-3Al (Ti-15-3) fillers on the microstructural and mechanical properties of Ti-15-3 gas tungsten arc weldments. X-ray diffraction and scanning electron microscopic analysis revealed the presence of β-Ti phase in the weldments prepared without the filler modification, while additional TiB and TiC phases are observed in the weldments prepared with fillers modified with B and C, respectively. B and C addition to the fillers has resulted in the grain refinement of the weldments and the grain size reduction is seen to be higher with the increasing B and C addition. The formation of TiB, TiC and growth restriction effect due to the presence of B and C in the filler resulted in the decreased grain size of the β-Ti weldments. Mechanical properties such as hardness and tensile strength improved as the amount of B and C addition increased. The improvement of mechanical properties is contributed by the grain refinement and the formation of TiB and TiC precipitates in weldments.

     

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  • How to Cite

    Adli Bin Mohd Arif, I., Kumar Talari, M., Kishore Babu, N., Lutfi Bin Anis, A., Hussain Ismail, M., & Bin Ramli, R. (2019). Effects of Boron and Carbon Added Titanium Filler on Microstructure and Mechanical Properties of Ti-15-3 Alloy Weldments. International Journal of Engineering & Technology, 7(4.14), 538-543. https://doi.org/10.14419/ijet.v7i4.14.27786

    Received date: 2019-02-22

    Accepted date: 2019-02-22

    Published date: 2019-12-24