Insight into thermodynamics and corrosion behavior of Al–Ni–Gd glassy alloys from atomic structure

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To clarify the relation between the thermodynamics and metastable pitting behavior of Al–Ni–Gd glassy alloys, the as-spun ribbons were investigated using various experimental methods and ab initio molecular dynamic simulations. The results show that the relative area of main peak shoulder in XRD patterns, onset crystallization temperature, contraction degree of samples increase with increasing cNi. The peak for the metastable pitting events in the polarization curves with Cl− containing solutions is accelerated by increasing cNi. The variation of thermal and electrochemical properties of samples is attributed to the strong interaction of Al–Ni bond based on the atomic structure analysis.