Additive Manufacturing of High Temperature Alloys

Dear Colleagues,

High-temperature alloys, such as superalloys, are some of the most commonly employed alloys for metal additive manufacturing and have a wide range of applications in aircraft, gas turbines, turbocharger rotors, and a variety of other energy and aerospace applications.  

Additive manufacturing (AM) is considered an attractive manufacturing technique for components with complex geometries due to the near-net shape production capability. Despite the many advantages of AM methods, including design flexibility, producing functionally graded parts, and a significantly lower buy-to-fly ratio, aspects such as the development of high residual stresses and, possibly, the formation of detrimental phases and defects in additively manufactured parts are a matter of concern. Thus, one of the main challenges preventing the widespread use of the AM method for the production of critical parts is the uncertainty in the resultant properties, such as quality, reproducibility, and predictability of mechanical and functional performance. AM process condition optimization and post-processing heat treatments are then often employed to reduce these detrimental effects and enhance the properties.

It is our pleasure to invite you to submit contributions that may take into account any of high-temperature alloy aspects involved in additive manufacturing. For this open-access Special Issue, we particularly welcome original research articles and review papers focused on (i) the relationship between AM process parameters, evolution of resulting microstructure, and functional properties; (ii) the effect of various heat treatments; (iii) mechanical performance and environmental effects (high temperature, hydrogen or corrosive environment); (iv) the development of functionally graded or multimaterials AM; (v) modeling and design for performance optimization; and (vi) powder and alloy design.

Dr. Vera Popovich
Dr. Ehsan Hosseini
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.