Phase-selective recrystallization makes eutectic high-entropy alloys ultra-ductile
Northwestern Polytechnical University · Pohang University of Science and Technology · +1 more institution
Abstract
Excellent ductility is crucial not only for shaping but also for strengthening metals and alloys. The ever most widely used eutectic alloys are suffering from the limited ductility and losing competitiveness among advanced structural materials. Here we report a distinctive concept of phase-selective recrystallization to overcome this challenge for eutectic alloys by triggering the strain hardening capacity of the duplex phases completely. We manipulate the strain partitioning behavior of the two phases in a eutectic high-entropy alloy (EHEA) to obtain the phase-selectively recrystallized microstructure with a fully recrystallized soft phase embedded in the skeleton of a hard phase. The resulting microstructure…
Citation impact
- FWCI
- 20.89
- Percentile
- 100%
- References
- 51
Authors
6Topics & keywords
- Materials science
- Eutectic system
- Microstructure
- Recrystallization (geology)
- Alloy
- Ductility (Earth science)
- High entropy alloys
- Elongation
Funding
- NRNational Research FoundationAward: 2021R1A2C3006662
- NNNational Natural Science Foundation of ChinaAwards: 51871183, 52001266
- MOMinistry of Science, ICT and Future PlanningAwards: 2021R1A2C3006662, NRF-2021R1A2C3006662
- NRNational Research Foundation of KoreaAwards: 2021R1A2C3006662, NRF-2021R1A2C3006662
- NSNatural Science Foundation of Shaanxi ProvinceAwards: 2020JQ, 2020JQ-720
- SKState Key Laboratory of Solidification ProcessingAward: 2020-TS-06