Fig. 4: Mechanical performances of the series alloys.
From: Superior zero thermal expansion dual-phase alloy via boron-migration mediated solid-state reaction
a Engineering compressive stress-strain curves of the ZTE alloy (Tar. Er-Fe-B), Pre. Er-Fe-B, Er2Fe14B and α-Fe. b The compressive strength and Vickers hardness of the as-synthesized alloys. The error bars donate standard deviation. c Gears as fabricated in the laboratory. d, e Lattice strain (515)E, (110)α and the corresponding full width at half maximum (FWHM) evolution with the applied stress derived by the single peak fitting. The error bars donate standard deviation. f Stress partitioning dependence of the applied stress, Note the tensile stress is depicted as negative. g, h The microstructure of the fracture surface of the pure E (g) phase and Tar. Er-Fe-B (h) alloy. The inset in (h) is an enlarged area in which the dimples of the α-phase are indicated by orange circles. i The strengthening mechanism of the “plum pudding” microstructure.
