Control of Morphological and Microstructural Anisotropy through Powder-Based Metal Additive Manufacturing

• NAKANO Takayoshi

  Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University

• ISHIMOTO Takuya

  Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University

• HAGIHARA Koji

  Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University

Bibliographic Information

Other Title

• 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
• 平成28年度秋季大会 講演特集 : 粉末積層3D造形技術における課題と最先端研究 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
• ヘイセイ 28ネンド シュウキ タイカイ コウエン トクシュウ : フンマツ セキソウ 3D ゾウケイ ギジュツ ニ オケル カダイ ト サイセンタン ケンキュウ フンマツ セキソウ ゾウケイホウ ニ ヨル ケイジョウ ト ソシキ セイギョ ニ ヨル イホウセイ フヨ

Abstract

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.

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

Keywords

• powder bed fusion
• crystallographic texture
• scan strategy
• silicide
• beta-Ti alloy

Details

• CRID: 1390001206310073856
• NII Article ID: 40021244704
• NII Article ID: 130007311749
• NII Book ID: AN00222724
• DOI: 10.2497/jjspm.64.259
• ISSN: 18809014
• ISSN: 05328799
• NDL BIB ID: 028335944
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028335944
• Web Site: https://www.jstage.jst.go.jp/article/jjspm/64/6/64_259/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed