Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 796, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2020.139974
Keywords
Medium-entropy alloys; Defect engineering; Tensile properties; Deformation microstructure; Strengthening mechanisms
Categories
Funding
- National Natural Science Foundation of China [51404302]
- Open Fund for National Defence Key Discipline Laboratory for Light Alloy Processing Science and Technology [gf201601002]
- Innovation Driven Program of Central South University [2019CX006]
- EPSRC [EP/N007638/1] Funding Source: UKRI
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We employed 'defect engineering' to achieve high strength-ductility in a new Co23Cr23Ni23Mn31 medium-entropy alloy. Using rolling and annealing, various defects were introduced, including nanoparticles, dislocations, stacking faults, nanotwins, Lomer-Cottrell locks, h.c.p lamellaes and amorphous bands. Engineering these defects facilitated to tailor mechanical response at different temperatures and applied strains.
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