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A low-cost hierarchical nanostructured beta-titanium alloy with high strength

Author

Listed:
  • Arun Devaraj

    (Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory)

  • Vineet V. Joshi

    (Energy and Environment Directorate, Pacific Northwest National Laboratory)

  • Ankit Srivastava

    (Texas A&M University)

  • Sandeep Manandhar

    (Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory)

  • Vladimir Moxson

    (Advance Materials Products Inc. (ADMA))

  • Volodymyr A. Duz

    (Advance Materials Products Inc. (ADMA))

  • Curt Lavender

    (Energy and Environment Directorate, Pacific Northwest National Laboratory)

Abstract

Lightweighting of automobiles by use of novel low-cost, high strength-to-weight ratio structural materials can reduce the consumption of fossil fuels and in turn CO2 emission. Working towards this goal we achieved high strength in a low cost β-titanium alloy, Ti–1Al–8V–5Fe (Ti185), by hierarchical nanostructure consisting of homogenous distribution of micron-scale and nanoscale α-phase precipitates within the β-phase matrix. The sequence of phase transformation leading to this hierarchical nanostructure is explored using electron microscopy and atom probe tomography. Our results suggest that the high number density of nanoscale α-phase precipitates in the β-phase matrix is due to ω assisted nucleation of α resulting in high tensile strength, greater than any current commercial titanium alloy. Thus hierarchical nanostructured Ti185 serves as an excellent candidate for replacing costlier titanium alloys and other structural alloys for cost-effective lightweighting applications.

Suggested Citation

  • Arun Devaraj & Vineet V. Joshi & Ankit Srivastava & Sandeep Manandhar & Vladimir Moxson & Volodymyr A. Duz & Curt Lavender, 2016. "A low-cost hierarchical nanostructured beta-titanium alloy with high strength," Nature Communications, Nature, vol. 7(1), pages 1-8, September.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11176
    DOI: 10.1038/ncomms11176
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    Cited by:

    1. 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.
    2. Chongle Zhang & Shuaiyang Liu & Jinyu Zhang & Dongdong Zhang & Jie Kuang & Xiangyun Bao & Gang Liu & Jun Sun, 2023. "Trifunctional nanoprecipitates ductilize and toughen a strong laminated metastable titanium alloy," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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