粉末積層造形法による形状と組織制御による異方性付与  [in Japanese] Control of Morphological and Microstructural Anisotropy through Powder-Based Metal Additive Manufacturing  [in Japanese]

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Author(s)

    • 中野 貴由 NAKANO Takayoshi
    • 大阪大学大学院工学研究科マテリアル生産科学専攻 Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
    • 石本 卓也 ISHIMOTO Takuya
    • 大阪大学大学院工学研究科マテリアル生産科学専攻 Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
    • 萩原 幸司 HAGIHARA Koji
    • 大阪大学大学院工学研究科知能・機能創成工学専攻 Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University

Abstract

<p>The utilization of "anisotropy" is becoming an important direction for realizing highly-functionalized products overcoming the current functional limits for materials with isotropic properties. In particular for the use in aerospace and biomedical industries, some products are exposed to anisotropic stress fields. Therefore, the products should be anisotropic along the functional axis. Additive manufacturing (AM) technology was originally specialized to fabricate the complicated structures in an arbitrary way. However, when it comes to metal AM, the control of material anisotropy has received an increasing attention in recent years. In this review article, the latest findings regarding the control of mechanical anisotropy through the modifications of macroscopic porous structure, microstructure, and crystallographic orientation by powder-based metal AM technologies are introduced. The powder-based metal AM is able to control a wide range of anisotropy from crystallographic texture to pore structure, however, their simultaneous control is yet challenging. Attainment of this heightens the value of metal AM technology and enhances the AM products' functions.</p>

Journal

  • Journal of the Japan Society of Powder and Powder Metallurgy

    Journal of the Japan Society of Powder and Powder Metallurgy 64(6), 259-264, 2017

    Japan Society of Powder and Powder Metallurgy

Codes

  • NII Article ID (NAID)
    130007311749
  • Text Lang
    JPN
  • ISSN
    0532-8799
  • Data Source
    J-STAGE 
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