Relationship between solidification time and porosity with directed energy deposition of Inconel 718

Tatsuhiko Kuriya, Ryo Koike, Takanori Mori, Yasuhiro Kakinuma

研究成果: Article

抄録

Directed Energy Deposition (DED) of metal materials has been widely studied with Inconel 718 using in aerospace industry. Void generation in a deposited part causes deterioration of the mechanical strength. Hence, void should be avoided in the DED process. In this study, a mechanism of void generation was investigated through the dynamic observation by high-speed camera, the thermal observation and the evaluation of the porosity. The experimental result shows that solidification time has an influence on the void generation.

元の言語English
ジャーナルJournal of Advanced Mechanical Design, Systems and Manufacturing
12
発行部数5
DOI
出版物ステータスPublished - 2018 1 1

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Solidification
Porosity
Aerospace industry
High speed cameras
Strength of materials
Deterioration
Metals
Hot Temperature

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

これを引用

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abstract = "Directed Energy Deposition (DED) of metal materials has been widely studied with Inconel 718 using in aerospace industry. Void generation in a deposited part causes deterioration of the mechanical strength. Hence, void should be avoided in the DED process. In this study, a mechanism of void generation was investigated through the dynamic observation by high-speed camera, the thermal observation and the evaluation of the porosity. The experimental result shows that solidification time has an influence on the void generation.",
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AU - Kuriya, Tatsuhiko

AU - Koike, Ryo

AU - Mori, Takanori

AU - Kakinuma, Yasuhiro

PY - 2018/1/1

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N2 - Directed Energy Deposition (DED) of metal materials has been widely studied with Inconel 718 using in aerospace industry. Void generation in a deposited part causes deterioration of the mechanical strength. Hence, void should be avoided in the DED process. In this study, a mechanism of void generation was investigated through the dynamic observation by high-speed camera, the thermal observation and the evaluation of the porosity. The experimental result shows that solidification time has an influence on the void generation.

AB - Directed Energy Deposition (DED) of metal materials has been widely studied with Inconel 718 using in aerospace industry. Void generation in a deposited part causes deterioration of the mechanical strength. Hence, void should be avoided in the DED process. In this study, a mechanism of void generation was investigated through the dynamic observation by high-speed camera, the thermal observation and the evaluation of the porosity. The experimental result shows that solidification time has an influence on the void generation.

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KW - High-speed camera

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KW - Porosity

KW - Solidification time

KW - Two-color temperature measurement

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