Corrosion behavior of (Cr 2/3 Ti 1/3 ) 3 AlC 2 and Ti 3 AlC 2 in static oxygen‐saturated liquid lead–bismuth eutectic (LBE) at 550°C and (Cr 2/3 Ti 1/3 ) 3 AlC 2 in static oxygen‐depleted LBE at 500°C were investigated. In oxygen‐saturated corrosion, the loose and porous corrosion layer consisting of (PbTiO 3 + TiO 2 ) was generated on the surface of Ti 3 AlC 2 . In contrast, (Cr 2/3 Ti 1/3 ) 3 AlC 2 formed the protective Cr 2 O 3 layer with better corrosion resistance. Moreover, dissolution corrosion of (Cr 2/3 Ti 1/3 ) 3 AlC 2 in oxygen‐depleted corrosion was intensified without a protective oxide film. And impurity phase TiC on the surface also caused the decomposition of matrix, thus impairing corrosion resistance.
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Zhang et al. (2024) studied this question.
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