Figures & data
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Figure 1. (a) Engineering strain-stress curves of the CrCoNi and boron-doped CrCoNi alloys in the hydrogen- uncharged and charged states. Fractured surfaces of (b and d) CrCoNi and (c and e) boron-doped CrCoNi with and without presence of hydrogen. Insets of Figure d and e are corresponding high-resolution fractographs from selected intergranular facets.
![Figure 1. (a) Engineering strain-stress curves of the CrCoNi and boron-doped CrCoNi alloys in the hydrogen- uncharged and charged states. Fractured surfaces of (b and d) CrCoNi and (c and e) boron-doped CrCoNi with and without presence of hydrogen. Insets of Figure 1d and e are corresponding high-resolution fractographs from selected intergranular facets.](/cms/asset/4767f058-dc27-43c6-9c8c-92a346a5a441/tmrl_a_2033865_f0001_oc.jpg)
Figure 2. EBSD measurements on grain sizes and GB characters of the fully recrystallized (a) CrCoNi and (b) boron-doped CrCoNi alloys as well as (c) their comparison on GB characters. The deformed microstructures of the hydrogen-charged (d) CrCoNi and (e) boron-doped CrCoNi alloys after fracture.
![Figure 2. EBSD measurements on grain sizes and GB characters of the fully recrystallized (a) CrCoNi and (b) boron-doped CrCoNi alloys as well as (c) their comparison on GB characters. The deformed microstructures of the hydrogen-charged (d) CrCoNi and (e) boron-doped CrCoNi alloys after fracture.](/cms/asset/f92e8674-af24-4264-a2ac-271ef2cf76c8/tmrl_a_2033865_f0002_oc.jpg)
Figure 3. (a and b) Two atom probe reconstructions of the boron-doped (400 at. ppm) CrCoNi alloy from the specific region containing a high-angel GB being 20.5°.
![Figure 3. (a and b) Two atom probe reconstructions of the boron-doped (400 at. ppm) CrCoNi alloy from the specific region containing a high-angel GB being 20.5°.](/cms/asset/0b6877ae-3c51-49ad-a3d1-39fc1aa354f4/tmrl_a_2033865_f0003_oc.jpg)
Figure 4. (a and c) Detailed atom probe reconstruction of the boron-doped (400 at. ppm) CrCoNi alloy using 0.4% B iso outlining the GB and 1.0% B iso outlining borides along the GB. 1D composition profiles across (b) a GB and (d) three borides.
![Figure 4. (a and c) Detailed atom probe reconstruction of the boron-doped (400 at. ppm) CrCoNi alloy using 0.4% B iso outlining the GB and 1.0% B iso outlining borides along the GB. 1D composition profiles across (b) a GB and (d) three borides.](/cms/asset/01746c15-27a9-4635-9eab-2d6bdc0045a3/tmrl_a_2033865_f0004_oc.jpg)
Figure A1. Overall fracture surfaces of the (a and b) CrCoNi and (c and d) boron-doped CrCoNi alloys with and without the presence of hydrogen.
![Figure A1. Overall fracture surfaces of the (a and b) CrCoNi and (c and d) boron-doped CrCoNi alloys with and without the presence of hydrogen.](/cms/asset/18edc04b-d8e8-4441-82c9-fa0a2ddb99de/tmrl_a_2033865_f0005_ob.jpg)