Abstract
Fatigue failures of structural materials pose enormous risks to in-service structures, as well as human lives. The development of advanced durable structural materials with fatigue resistance has important social impact. The novel concept of high-entropy alloys (HEAs) has engendered considerable attention due to their exhibited unusual mechanical properties, and correspondingly opening a new road to design fatigue-resistant structural materials. The present work discusses and reviews the current findings on fatigue behavior and mechanisms of HEAs. Based on the understanding of fatigue-resistant favorable deformation mechanisms in HEAs, the perspectives from the viewpoint of materials design are provided to advance the development of fatigue-resistant HEAs, and future works are also suggested.
| Original language | English |
|---|---|
| Pages (from-to) | 4-24 |
| Number of pages | 21 |
| Journal | High Entropy Alloys and Materials |
| Volume | 1 |
| Issue number | 1 |
| DOIs | |
| State | Published - Mar 2023 |
Funding
RF thanks for the support from Materials and Engineering Initiative at the Spallation Neutron Source (SNS) and High Flux Isotope Reactor (HFIR), at Oak Ridge National Laboratory (ORNL). PKL appreciates the support from the US National Science Foundation (DMR 1611180) and the US Army Research Office under project numbers of W911NF-13-1-0438 and W911NF-19-2-0049. This research used resources at the SNS, a US Department of Energy Office of Science User Facility operated by ORNL. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).
Keywords
- Fatigue-crack growth
- Fatigue-life predictive models
- Grain refinement
- High-cycle fatigue
- High-entropy alloys
- Low-cycle fatigue
- Microstructural hierarchy
- Neutron diffraction
- Synchrotron X-ray diffraction
- TRIP effect
- TWIP effect