Element-resolved electrochemical analysis of transpassive dissolution and repassivation behavior of the multi-principal element alloy AlTiVCr
作者： S. Choudhary , Y. Qiu , S. Thomas , N. Birbilis
DOI: 10.1016/J.ELECTACTA.2020.137104
关键词:
摘要: Abstract The dissolution and subsequent repassivation behavior of a lightweight single-phase multi-principal element alloy (MPEA) AlTiVCr, have been investigated in quiescent 0.6 M NaCl. exhibits excellent passivity ability spite transpassive V Cr during cyclic potentiodynamic polarisation. Elemental-resolved analysis the using inline inductively coupled plasma mass spectroscopy (ICP-MS), together with composition passive film X-ray photoelectron (XPS) reveal that promptly recovers after each due to rapid growth stable TiO2 film, which led wide window. Moreover, was found be significant enrichment Ti on surface anodic results, corresponding compositional evolution were good agreement predicted E-pH diagram alloy.
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