Applied Physics A

, 124:288 | Cite as

Preheat effect on titanium plate fabricated by sputter-free selective laser melting in vacuum

  • Yuji Sato
  • Masahiro Tsukamoto
  • Takahisa Shobu
  • Yorihiro Yamashita
  • Shuto Yamagata
  • Takaya Nishi
  • Ritsuko Higashino
  • Tomomasa Ohkubo
  • Hitoshi Nakano
  • Nobuyuki Abe
Article
Part of the following topical collections:
  1. COLA2017

Abstract

The dynamics of titanium (Ti) melted by laser irradiation was investigated in a synchrotron radiation experiment. As an indicator of wettability, the contact angle between a selective laser melting (SLM) baseplate and the molten Ti was measured by synchrotron X-rays at 30 keV during laser irradiation. As the baseplate temperature increased, the contact angle decreased, down to 28° at a baseplate temperature of 500 °C. Based on this result, the influence of wettability of a Ti plate fabricated by SLM in a vacuum was investigated. It was revealed that the improvement of wettability by preheating suppressed sputtering generation, and a surface having a small surface roughness was fabricated by SLM in a vacuum.

Notes

Acknowledgements

This work was supported by the Strategic Innovative Promotion Program of the Japan New Energy and Industrial Technology Development Organization (NEDO). The synchrotron radiation experiments were performed at the BL22XU in SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (Proposal No. 2016B3721, No. 2017A3721).

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Yuji Sato
    • 1
  • Masahiro Tsukamoto
    • 1
  • Takahisa Shobu
    • 2
  • Yorihiro Yamashita
    • 3
  • Shuto Yamagata
    • 4
  • Takaya Nishi
    • 5
  • Ritsuko Higashino
    • 1
  • Tomomasa Ohkubo
    • 6
  • Hitoshi Nakano
    • 5
  • Nobuyuki Abe
    • 1
  1. 1.Joining and Welding Research InstituteOsaka UniversityOsakaJapan
  2. 2.Japan Atomic Energy AgencyHyogoJapan
  3. 3.Industrial Research Institute of IshikawaKanazawaJapan
  4. 4.Graduate School of EngineeringOsaka UniversitySuitaJapan
  5. 5.Graduate School of Science and EngineeringKindai UniversityHigashi-OsakaJapan
  6. 6.Department of Mechanical EngineeringTokyo University of TechnologyHachioujiJapan

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