A strong and ductile medium-entropy alloy resists hydrogen embrittlement and corrosion

Hong Luo, Seok Su Sohn, Wenjun Lu, Linlin Li, Xiaogang Li (), Chandrahaasan K. Soundararajan, Waldemar Krieger, Zhiming Li () and Dierk Raabe ()
Additional contact information
Hong Luo: University of Science and Technology Beijing
Seok Su Sohn: Max-Planck-Institut für Eisenforschung
Wenjun Lu: Max-Planck-Institut für Eisenforschung
Linlin Li: Max-Planck-Institut für Eisenforschung
Xiaogang Li: University of Science and Technology Beijing
Chandrahaasan K. Soundararajan: Max-Planck-Institut für Eisenforschung
Waldemar Krieger: Max-Planck-Institut für Eisenforschung
Zhiming Li: Max-Planck-Institut für Eisenforschung
Dierk Raabe: Max-Planck-Institut für Eisenforschung

Nature Communications, 2020, vol. 11, issue 1, 1-8

Abstract: Abstract Strong and ductile materials that have high resistance to corrosion and hydrogen embrittlement are rare and yet essential for realizing safety-critical energy infrastructures, hydrogen-based industries, and transportation solutions. Here we report how we reconcile these constraints in the form of a strong and ductile CoNiV medium-entropy alloy with face-centered cubic structure. It shows high resistance to hydrogen embrittlement at ambient temperature at a strain rate of 10−4 s−1, due to its low hydrogen diffusivity and the deformation twinning that impedes crack propagation. Moreover, a dense oxide film formed on the alloy’s surface reduces the hydrogen uptake rate, and provides high corrosion resistance in dilute sulfuric acid with a corrosion current density below 7 μA cm−2. The combination of load carrying capacity and resistance to harsh environmental conditions may qualify this multi-component alloy as a potential candidate material for sustainable and safe infrastructures and devices.

Date: 2020
References: Add references at CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/s41467-020-16791-8 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16791-8

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-020-16791-8

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().