Advanced In-Situ Characterization of Additive Manufactured Alloys

Dear Colleagues,

Additive Manufacturing is a novel manufacturing technique used to fabricate critical structural components for aerospace, shipbuilding, and medical and power plants. Three-dimensional components are fabricated based on correlating the digital system with the necessary equipment. The technique has the capability of reducing excessive manufacturing tooling, cost, and manufacturing time. The fabricated material/alloys’ microstructure can be controlled for desired mechanical properties by defining optimized process parameters.

Furthermore, advanced characterization techniques can provide a clear concept about the materials’ characteristics. Advanced in situ characterization provides real-time observations of the phenomena occurring during the experimental process. Insights can provide a more accurate understanding of phase transition temperature, crystalline slips/microcracks’ initiation, propagation, and interaction with obstacles during deformation processes. The in situ setup can simultaneously integrate multiple characterization techniques, which is a breakthrough in investigating the materials’ behavior for advanced applications. Even though advanced in situ characterization gives us innovative and valuable information about metallurgical phenomena, there are still challenges and restrictions to the different experimental in situ techniques, such as credibility of testing equipment, representation of an investigated region of material, correlating free surface effects with bulk material behavior, and temperature calibration during material testing.

In this Special Issue, we welcome original research and review articles related to additive manufactured metallic materials investigated by advanced in situ characterization techniques, contributions explaining recent achievements within in situ methodologies such as upgrading the in situ setup, parameter optimization, and specimen preparation.

Prof. Dr. Yuefei Zhang
Guest Editor

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• Additive manufacturing
• In situ testing
• Phase transformation
• Metal alloys
• SEM
• EBSD
• Temperature effect
• Deformation
• Microstructural evolution
• Mechanical properties