Atom probe tomographic study of L10 martensite in a Pt-modified NiCoCrAlYTa bond coating

Authors
Publication date
1 November 2013
Publisher
'Elsevier BV'
Doi

    Abstract

    The L10 martensite formed in a Pt-modified NiCoCrAlYTa bond coating has been investigated by atom probe tomography. It was found that obvious segregation of Co and Cr occurred in the micro-twins zone inside the martensite lath. Based upon the compositional analysis, it is known that Pt destabilizes the β phase and Co and Cr act as β stabilizers with respect to the β→L10 martensitic transformation. In addition, some α-Cr particles precipitated inside the martensite lath

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