Prediction of laser fusion zone profile of lotus-type porous metals by 3D heat transfer analysis

Takuya Tsumura, Fuxing Ye, Taichi Murakami, Hideo Nakajima, Kazuhiro Nakata

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Lotus-type porous metals, whose pores are aligned in one direction by unidirectional solidification, have a unique combination of properties. These are expected as revolutionary engineering materials with anisotropy of the properties. For the industrial use of the lotus-type porous metals, a reliable joining technology is required. We already reported the melting property of a few lotus-type porous metals by laser welding. These results indicated that these materials possessed anisotropy of melting property with the pore direction perpendicular and parallel to the specimen surface, especially remarkable anisotropy was obtained for the copper specimen owing to the difference of the laser energy absorption to the specimen surface. In this report, the three-dimensional heat transfer analyses, which take into account the difference of the laser energy absorption comparing with the anisotropy of thermal conductivity inherent to lotus-type porous metals, were performed by commercial code with user-defined subroutine. Predicted profile of weld fusion zone is in good agreement with the cross-sectional view obtained by experiments.

本文言語English
ホスト出版物のタイトルDesigning of Interfacial Structures in Advanced Materials and their Joints
編集者Masaaki Naka
出版社Trans Tech Publications Ltd
ページ307-312
ページ数6
ISBN(印刷版)9783908451334
DOI
出版ステータスPublished - 2007
イベントInternational Workshop on Designing of Interfacial Structures in Advanced Materials and their Joints, DIS 2006 - Osaka, Japan
継続期間: 2006 5 182006 5 20

出版物シリーズ

名前Solid State Phenomena
127
ISSN(印刷版)1012-0394
ISSN(電子版)1662-9779

Other

OtherInternational Workshop on Designing of Interfacial Structures in Advanced Materials and their Joints, DIS 2006
国/地域Japan
CityOsaka
Period06/5/1806/5/20

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 材料科学(全般)
  • 凝縮系物理学

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