Science Advances

Supplementary Materials

The PDF file includes:

  • Alloy design strategy
  • Fig. S1. TEM of the bulk Fe25Co25Ni25Al10Ti15 HEA.
  • Fig. S2. Twins in the primary fcc phase.
  • Fig. S3. HRTEM images of hierarchical precipitates.
  • Fig. S4. Sequential snapshots from a video recorded during the in situ TEM compression test.
  • Fig. S5. Fracture morphology after in situ SEM microtensile testing.
  • Fig. S6. X-ray scattering and microstructure of the Fe25Co25Ni25Al10Ti15 HEA powders.
  • Fig. S7. The Scheil-Gulliver simulation of the nonequilibrium fcc phase region.
  • Fig. S8. SEM micrograph of the microforce sensor’s flat probe tip with custom-milled tensile grip geometry.
  • Table S1. EDS/TEM and EDS/STEM results of the phases in the bulk Fe25Co25Ni25Al10Ti15.
  • Table S2. Processing routes and microstructures of selected HEAs.

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Other Supplementary Material for this manuscript includes the following:

  • Movie S1 (.mp4 format). During the initial deformation, dislocations were first generated in the γ matrix, and as the displacement increased, dislocations sheared the hierarchical γ′ and γ* precipitates.

Files in this Data Supplement: