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Table 2 STEM-EDX measurement of the elemental concentration within the highlighted (numbered) areas in Fig. 4a in at. %

From: Protective Alumina Scale Growth at 900 °C for a Ni- and Cr-Free Co-Base Model Alloy with γ/γ’-Microstructure: Synergistic Effects by Combining Shot-Peening and Halogenation

Position Description O Al Co Ta W
(1) CoO 52.7 0.2 47.1 0 0
(2) mixed oxides 58.3 19.5 17.7 1.9 2.6
(3) Al2O3 59.1 37.5 0.8 1.7 0.9
(4) Co3W 0.8 1.2 79.7 2.7 15.6