Directional Solidification of Alloys and Advanced Wear-Resistant Materials

Dear Colleagues,

Directional solidification is a crucial process to acquire tailored microstructure and desired properties of alloys, e.g., lamellar structures, grain size, oriented hard phases or compounds, Friction lubrication interface, and simultaneously promoting their related excellent performances, such as wear, mechanical and corrosion properties, etc. Moreover, the heat treatment of directionally solidified alloys may result in particular precipitates, especially for the morphologies, size and distribution of precipitates, thus leading to unique properties. The directional alloys or coatings overlaid on directional solidification alloys can also generate extraordinary properties or micro-interfaces, which may improve corrosion, oxidation, wear and lubrication performances.

Advanced directionally solidified alloys should demonstrate diversified functions during wear and corrosion conditions. Structurally achieved functions depend on directional solidification parameters and features including lamellar spacing, orientation of hard phase, thickness of columnar compounds, orientation of precipitates, etc. Functions in performance may cover strength, stiffness, thermal shock, fracture toughness, oxidation resistance, etc. Both microstructures and properties of directionally solidified alloys as well as their relationships should be understood and revealed in detail.

This Special Issue aims at the microstructural characters and properties of directional solidification alloys and their wear resistance, including the worn surface and interfaces. The simulation works are also included in this field.

Prof. Shengqiang Ma
Guest Editor

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