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

Sato, Yuji*; Tsukamoto, Masahiro*; Shobu, Takahisa ; Yamashita, Yoshihiro*; Yamagata, Shuto*; Nishi, Takaya*; Higashino, Ritsuko*; Okubo, Tomomasa*; Nakano, Hitoshi*; Abe, Nobuyuki*

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 degrees at a baseplate temperature of 500 $^{circ}$ 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.

Language	:	English
Journal	:	Applied Physics A
Volume	:	124
Number	:	4
Pages	:	p.288_1 - 288_6
Publication Year/Month	:	2018/04
Meeting title	:
Held date	:
Location (city)	:
Location (country)	:
Patent information	:
PDF	:
Paper URL	:	https://doi.org/10.1007/s00339-018-1712-4
DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	Preheat effect; sputter-free; selective laser melting; Synchrotron Radiation
Research Facility	:	SPring-8(大型放射光施設)
Press Release	:
JAEA R&D Navigator	:	Successful Observation of the Melting and Solidification Phenomena of Metal with a Time Resolution of One Millisecond; Contributing to the Advancement of Laser Welding Technology[/]
Cooperating Institute	:

Accesses	:	- Accesses
Web of Science® Times Cited Count	:	Times Cited Count： If you would like to get the latest times cited, please access the Web of Science®. http://www.webofknowledge.com/wos
InCites™	:	Percentile:58.84 Category:Materials Science, Multidisciplinary
Altmetrics	:

Registration No. : AA20180024
JAEA Abstracts No. : 47000361
Paper Submission No. : 21033

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.