A low-cost hierarchical nanostructured beta-titanium alloy with high strength
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. Furthermore hierarchical nanostructured Ti185 serves as an excellent candidate for replacing costlier titanium alloys and other structural alloys for cost-effective lightweighting applications.
- Authors:
-
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Texas A & M Univ., College Station, TX (United States)
- Advance Materials Products Inc. (ADMA), Hudson, OH (United States)
- Publication Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States). Environmental Molecular Sciences Laboratory (EMSL)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1253835
- Report Number(s):
- PNNL-SA-116064
Journal ID: ISSN 2041-1723; ncomms11176
- Grant/Contract Number:
- AC05-76RL01830
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 7; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; hierarchical nanostructure; β-titanium alloy; low-cost titanium alloy; atom probe tomography; Environmental Molecular Sciences Laboratory
Citation Formats
Devaraj, Arun, Joshi, Vineet V., Srivastava, Ankit, Manandhar, Sandeep, Moxson, Vladimir, Duz, Volodymyr A., and Lavender, Curt. A low-cost hierarchical nanostructured beta-titanium alloy with high strength. United States: N. p., 2016.
Web. doi:10.1038/ncomms11176.
Devaraj, Arun, Joshi, Vineet V., Srivastava, Ankit, Manandhar, Sandeep, Moxson, Vladimir, Duz, Volodymyr A., & Lavender, Curt. A low-cost hierarchical nanostructured beta-titanium alloy with high strength. United States. https://doi.org/10.1038/ncomms11176
Devaraj, Arun, Joshi, Vineet V., Srivastava, Ankit, Manandhar, Sandeep, Moxson, Vladimir, Duz, Volodymyr A., and Lavender, Curt. Fri .
"A low-cost hierarchical nanostructured beta-titanium alloy with high strength". United States. https://doi.org/10.1038/ncomms11176. https://www.osti.gov/servlets/purl/1253835.
@article{osti_1253835,
title = {A low-cost hierarchical nanostructured beta-titanium alloy with high strength},
author = {Devaraj, Arun and Joshi, Vineet V. and Srivastava, Ankit and Manandhar, Sandeep and Moxson, Vladimir and Duz, Volodymyr A. and Lavender, Curt},
abstractNote = {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. Furthermore hierarchical nanostructured Ti185 serves as an excellent candidate for replacing costlier titanium alloys and other structural alloys for cost-effective lightweighting applications.},
doi = {10.1038/ncomms11176},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {Fri Apr 01 00:00:00 EDT 2016},
month = {Fri Apr 01 00:00:00 EDT 2016}
}
Web of Science
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