Article ID Journal Published Year Pages File Type
1498394 Scripta Materialia 2014 4 Pages PDF
Abstract

Addition of Zr to low-Cr ferritic stainless steel forms a mixture of ZrC and Fe23Zr6 precipitates that can prevent intergranular corrosion. Transmission electron microscopy and three-dimensional atom probe analysis suggest that the ZrC and Fe23Zr6 mixture prevents intergranular corrosion in two ways: by acting as a strong carbide former to suppress the formation of Cr-carbide and by acting as a barrier against the diffusion of the solute Cr towards the grain boundary.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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