Bioinspired low-magnetic Zr alloy with high strength and ductility

SCRIPTA MATERIALIA

卷:199

Article

Zhou, Weiwei¹  Sun, Xiaohao²  Tsutsumi, Yusuke³  Nomura, Naoyuki¹  Hanawa, Takao^4,5 

[1] Tohoku Univ, Grad Sch Engn, Dept Mat Proc, Sendai, Miyagi 9808579, Japan

[2] Tianjin Univ Technol, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China

[3] Natl Inst Mat Sci, Res Ctr Struct Mat, Tsukuba, Ibaraki 3050047, Japan

[4] Tokyo Med & Dent Univ, Inst Biomat & Bioengn, Chiyoda Ku, Tokyo 1010062, Japan

[5] Kobe Univ, Ctr Adv Med Engn Res & Dev, Kobe, Hyogo 6500047, Japan

关键词: Bioinspired;    Zr-1Mo alloy;    Thermomechanical treatment;    Magnetic susceptibility;   

DOI  :  10.1016/j.scriptamat.2021.113856

来源: Elsevier

【 摘 要 】

Generally, high strength and high ductility are two mutually exclusive properties of engineering mate-rials. 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 alpha-Zr phases and the elongated beta-Zr nanoparticles in the alloy functioned as the hard bricks and soft mortar, respectively. Consequently, the nacre-like Zr-1Mo al-loy possesses a high potential for biomaterial applications owing to its unique combination of high tensile strength (similar to 812-968 MPa), high ductility (similar to 10.3-12.6%), and low magnetic susceptibility (similar to 1.2-1.4 x 10(-6) cm(3) g(-1)). This work provides new insights into the fabrication of bioinspired metallic materials with exceptionally high strength and ductility. (c) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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