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In this paper, the changes of surface morphology, microstructure, hardness and corrosion resistance of industrial pure zirconium before and after surface modification by high current pulsed electron beam were discussed. The microstructure evolution and surface morphologies of the samples were characterized by using X-ray diffraction (XRD), optical...
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... this case, with the increase of the number of pulses, the depth of the solid phase transition layer of martensite will in- crease. Figure 5 shows a different number pulses surface processing under different load hardness comparison chart. By comparison, we can see, after pulsed electron beam treatment, hardness under different load is compared, compared with that before the treatment has increased. ...
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Following the introduction of high-entropy alloys (HEAs) with five or more principal elements, dual-phase HEAs have recently received significant attention due to their promising mechanical properties. Theoretical simulations suggest that unique mechanical properties of these alloys arise due to the contribution of localized phase transformation an...
Citations
Comparative studies of the effect of pulsed electron beam irradiation on the structure and mechanical properties of Zr–1 wt % Nb and Zr–1 wt % Nb–0.25 wt % H alloys were performed. The irradiation with a pulsed electron beam in the surface melting mode is found to result in an increase in the strength characteristics of Zr–1Nb and Zr–1Nb–0.25H alloys in the temperature range of 293–673 K by 30–10% compared with unirradiated samples with the corresponding hydrogen concentration. Formation of a modified surface layer during irradiation is shown to increase the crack resistance and resistance to hydrogen embrittlement of the Zr–1Nb–0.25H alloy.
