Bioinspired low-magnetic Zr alloy with high strength and ductility

Weiwei Zhou, Xiaohao Sun, Yusuke Tsutsumi, Naoyuki Nomura, Takao Hanawa

Research output: Contribution to journalArticlepeer-review

Abstract

Generally, high strength and high ductility are two mutually exclusive properties of engineering materials. Nacre exhibits high strength and toughness owing to the presence of intelligent brick-and-mortar architectures. The present study demonstrates the design of a bioinspired nacre-like Zr-1Mo alloy via an appropriate thermomechanical treatment. The α-Zr phases and the elongated β-Zr nanoparticles in the alloy functioned as the hard bricks and soft mortar, respectively. Consequently, the nacre-like Zr-1Mo alloy possesses a high potential for biomaterial applications owing to its unique combination of high tensile strength (~812–968 MPa), high ductility (~10.3–12.6%), and low magnetic susceptibility (~1.2–1.4 × 10−6 cm3 g−1). This work provides new insights into the fabrication of bioinspired metallic materials with exceptionally high strength and ductility.

Original languageEnglish
Article number113856
JournalScripta Materialia
Volume199
DOIs
Publication statusPublished - 2021 Jul 1

Keywords

  • Bioinspired
  • Magnetic susceptibility
  • Thermomechanical treatment
  • Zr-1Mo alloy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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