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High tensile ductility in a nanostructured metal

Author

Listed:
  • Yinmin Wang

    (The Johns Hopkins University)

  • Mingwei Chen

    (The Johns Hopkins University)

  • Fenghua Zhou

    (The Johns Hopkins University)

  • En Ma

    (The Johns Hopkins University)

Abstract

Nanocrystalline metals—with grain sizes of less than 100 nm—have strengths exceeding those of coarse-grained and even alloyed metals1,2, and are thus expected to have many applications. For example, pure nanocrystalline Cu (refs 1–7) has a yield strength in excess of 400 MPa, which is six times higher than that of coarse-grained Cu. But nanocrystalline materials often exhibit low tensile ductility at room temperature, which limits their practical utility. The elongation to failure is typically less than a few per cent; the regime of uniform deformation is even smaller1,2,3,4,5,6,7. Here we describe a thermomechanical treatment of Cu that results in a bimodal grain size distribution, with micrometre-sized grains embedded inside a matrix of nanocrystalline and ultrafine (

Suggested Citation

  • Yinmin Wang & Mingwei Chen & Fenghua Zhou & En Ma, 2002. "High tensile ductility in a nanostructured metal," Nature, Nature, vol. 419(6910), pages 912-915, October.
    • Handle: RePEc:nat:nature:v:419:y:2002:i:6910:d:10.1038_nature01133
    DOI: 10.1038/nature01133
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    Cited by:

    1. Zan Li & Yin Zhang & Zhibo Zhang & Yi-Tao Cui & Qiang Guo & Pan Liu & Shenbao Jin & Gang Sha & Kunqing Ding & Zhiqiang Li & Tongxiang Fan & Herbert M. Urbassek & Qian Yu & Ting Zhu & Di Zhang & Y. Mor, 2022. "A nanodispersion-in-nanograins strategy for ultra-strong, ductile and stable metal nanocomposites," Nature Communications, Nature, vol. 13(1), pages 1-13, December.
    2. Jae Bok Seol & Won-Seok Ko & Seok Su Sohn & Min Young Na & Hye Jung Chang & Yoon-Uk Heo & Jung Gi Kim & Hyokyung Sung & Zhiming Li & Elena Pereloma & Hyoung Seop Kim, 2022. "Mechanically derived short-range order and its impact on the multi-principal-element alloys," Nature Communications, Nature, vol. 13(1), pages 1-13, December.
    3. Muhammad Farzik Ijaz & Basim T. Nashri & Mansour T. Qamash, 2024. "Sustainability through Optimal Compositional and Thermomechanical Design for the Al-7XXX Alloys: An ANOVA Case Study," Sustainability, MDPI, vol. 16(4), pages 1-25, February.
    4. Hai Wang & Wei Song & Mingfeng Liu & Shuyuan Zhang & Ling Ren & Dong Qiu & Xing-Qiu Chen & Ke Yang, 2022. "Manufacture-friendly nanostructured metals stabilized by dual-phase honeycomb shell," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    5. Chongle Zhang & Xiangyun Bao & Mengyuan Hao & Wei Chen & Dongdong Zhang & Dong Wang & Jinyu Zhang & Gang Liu & Jun Sun, 2022. "Hierarchical nano-martensite-engineered a low-cost ultra-strong and ductile titanium alloy," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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