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Investigation of the microstructure and surface morphology of a Ti6Al4V plate fabricated by vacuum selective laser melting

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Abstract

As an additive manufacturing technology, the selective laser melting (SLM) process is useful to directly form complicated shapes. The SLM process in a vacuum has been used to fabricate three-dimensional Ti6Al4V (Ti64) plates because this method can control the phase transformation. To investigate the laser melting and solidification dynamics, the formation of a Ti64 plate by SLM in a vacuum was captured by a high-speed video camera. Due to the effects of temperature and scanning speed on the phase transformation, the crystal orientation was evaluated with X-ray diffraction. A phase transformation of the crystal orientation occurred as the baseplate temperature was heated up from 50 to 150 °C.

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Acknowledgments

This work is partly supported by the New Energy and Industrial Technology Development Organization (NEDO) of Japan.

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Authors and Affiliations

  1. Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki, Osaka, 567-0047, Japan

    Yuji Sato, Masahiro Tsukamoto, Shinichiro Masuno & Nobuyuki Abe

  2. Industrial Research Institute of Ishikawa, 2-1 Kuratsuki, Kanazawa, Ishikawa, 920-8203, Japan

    Yorihiro Yamashita

  3. Graduate School of Engineering, Osaka University, 1-1 Yamadaoka, Suita, Osaka, 565-0871, Japan

    Kensuke Yamashita & Daichi Tanigawa

Authors
  1. Yuji Sato
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  2. Masahiro Tsukamoto
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  3. Shinichiro Masuno
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  4. Yorihiro Yamashita
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  5. Kensuke Yamashita
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  6. Daichi Tanigawa
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  7. Nobuyuki Abe
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Correspondence to Yuji Sato.

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Sato, Y., Tsukamoto, M., Masuno, S. et al. Investigation of the microstructure and surface morphology of a Ti6Al4V plate fabricated by vacuum selective laser melting. Appl. Phys. A 122, 439 (2016). https://doi.org/10.1007/s00339-016-9996-8

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  • DOI: https://doi.org/10.1007/s00339-016-9996-8

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