Article ID Journal Published Year Pages File Type
1498265 Scripta Materialia 2015 4 Pages PDF
Abstract

 The applicability of Si in low-Mo duplex stainless steel weld metals is examined in terms of corrosion resistance and impact toughness. Nano-secondary ion mass spectrometry and three-dimensional atom probe analysis indicate that Si is enriched at the outermost layer in the form of Si-oxide a few nanometer thick, leading to a significant increase in critical pitting temperature without sacrificing the impact toughness. Improved corrosion resistance suggests that the thin oxide layer possibly acts as a diffusion barrier against aggressive ionic species.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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