生体用低磁性ジルコニウム合金とその積層造形体の開発

Translated title of the contribution: Development of low magnetic zirconium-based alloys and the additively manufactured builds for biomedical applications

Naoyuki Nomura, Akira Kawasaki

Research output: Contribution to journalArticlepeer-review

Abstract

Low magnetic zirconium-based alloys were developed to prevent artifact formation in magnetic resonance images. The processes of the optimization of composition, evaluation of powder properties, and manufacturing by laser powder bed fusion were introduced for Zr-1Mo alloy. The gas atomized Zr-1Mo powder showed comparable powder properties to Ti-6Al-4V. The process map on the porosity were constructed and the different pore morphologies were observed depending on the energy density and laser scanning speed. Oxygen and nitrogen content in the build increased with increasing energy density and laser scan speed. Mechanical properties of as-built Zr-1Mo were also different depending on the parameters, and showed higher values in the higher energy density and lower laser scanning speed. Although the elongation of the as-build Zr-1Mo was about half as low as that of Ti-6Al-4V ELI, the UTS and elongation were improved comparable to those of Ti-6Al-4V ELI by a post treatment.

Translated title of the contributionDevelopment of low magnetic zirconium-based alloys and the additively manufactured builds for biomedical applications
Original languageJapanese
Pages (from-to)431-435
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume68
Issue number10
DOIs
Publication statusPublished - 2021

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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