Fig. 3: Fracture surfaces of hydrogen pre-charged and uncharged equiatomic CoNiV MEA after tensile test. | Nature Communications

Fig. 3: Fracture surfaces of hydrogen pre-charged and uncharged equiatomic CoNiV MEA after tensile test.

From: A strong and ductile medium-entropy alloy resists hydrogen embrittlement and corrosion

Fig. 3

a Fracture morphologies of MEA samples after tensile testing without hydrogen charging, showing ductile dimple fracture surface. b, c Enlarged images for edge and interior regions of the fracture surface marked in (a), respectively. d Hydrogen pre-charged sample showing both brittle and ductile fracture features. e, f Enlarged images for surface and interior regions of the fracture surface marked in (d), respectively.

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