Evaluated data from "Re-Assessing the Strength and Deformation Behavior of B2-ordered Binary Iron Aluminides"

The following file deisgnations are used:

Fe30Al = alloy with nominal 30 at.% Al and 70 at.% Fe
Fe35Al = alloy with nominal 35 at.% Al and 65 at.% Fe
Fe42Al = alloy with nominal 42 at.% Al and 58 at.% Fe
Fe47Al = alloy with nominal 47 at.% Al and 53 at.% Fe
Fe50Al = alloy with nominal 50 at.% Al and 50 at.% Fe
Fe53Al = alloy with nominal 53 at.% Al and 47 at.% Fe

RT = Testing temperature was room temperature (20°C)
400C = Testing temperature was 400°C
500C = Testing temperature was 500°C
600C = Testing temperature was 600°C
700C = Testing temperature was 700°C

SH = Abbreviation for "strain hardening". The data presented in these files were processed by interpolation and smoothening.

HV = Abbreviation for "Vickers Hardness". Indentation load was 1kg, dwell time was 10s. At least ten indents were evaluated with grains of random orientation. Distance to indents was at least three times the largest diagonal of an indent, and distance to grain boundaries at least six times the largest diagonal of an indent.

NH = Abbreviation for "Nanohardness". A diamond Berkovich indenter was used, maximum indentation depth was 1 micron at a constant strain rate of 0.02 1/s. 9 indents wer performed for each grain. Distance between two indents was 30 micron. 

Homogenization = denotes the heat treatment state for testing, which is 1000 °C for 48h for all alloys except Fe53Al, where the duration was set to 168 h.

Annealed = denotes the heat treatment state for testing, which is 400°C for 120h for all alloys.

Further details are found in the preprint linked to this dataset.

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We gratefully acknowledge financial support by the Deutsche Forschungsgemeinschaft (DFG) within the framework of the project no. 511095365 (HE1872/44-1 and KA4631/4-1 at KIT, STE1077/3-1 and BE7628/1-1 at MPI SusMat). This work was partly carried out with the support of the Karlsruhe Nano Micro Facility (KNMFi, proposal no. 2025-035-032491, www.knmf.kit.edu), a Helmholtz Research Infrastructure at Karlsruhe Institute of Technology (KIT, www.kit.edu). We acknowledge the chemical analysis by ICP-OES, CGHE and CA at the Institute for Applied Materials (IAM-AWP) by Dr. Bergfeldt, Karlsruhe Institute of Technology (KIT) and support by Dr. Anwesha Kanjilal (MPI SusMat) within the framework of this project.