Superalloys and Ceramic Matrix Composites Behaviors under Extreme Conditions

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: 30 November 2024 | Viewed by 111

Special Issue Editors

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Guest Editor
Department of Aerospace Engineering, College of Aeronautics and Engineering, Kent State University, Kent, OH 44242, USA
Interests: materials development; degradation; EBC; CMC; characterization; life model validation; high temperature; performance; NDE; finite elements; fatigue; composite materials
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Guest Editor
Mechanics, Smart Sensors and Nondestructive Evaluation (MSS-NDE) Laboratory, Department of Materials Science and Engineering, University of Ioannina, Ioannina, Greece
Interests: development of "health monitoring" methodologies for assessment of deterioration and life prediction of technological materials and structures undergoing environmental aging; development of advanced non-destructive methods (ultrasound, acoustic microscopy, nonlinear acoustics, lock-in thermography, nano-microscopy) for the characterization of metal alloys, coatings, composite materials with a metal and ceramic matrix, nano-structured and intelligent materials; study of the mechanical behavior of materials (crack growth, local plastic deformation, low and high cycle fatigue, thermomechanical fatigue, micro-friction fatigue, creep, corrosion)
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The operating conditions that super alloys and CMCs are subjected to in the hot sections of turbine engines are known to be complex and harsh. The cyclic high temperatures and high stresses impose significant challenges, leading to fatigue phenomena. Furthermore, these critical engine components are subjected to various external and internal surface damages, including corrosion, oxidation, crack formation, erosion, and foreign object interactions. The combination of these factors accelerates the rate of failure caused by fatigue loading on such components.

Traditionally, fault identification and failure investigations in these materials have relied on experimental interpretations, microscopic observations, and non-destructive evaluation (NDE) inspections. Although these methodologies have provided valuable insights, the need for advanced analytical modeling and reliable fatigue life prediction techniques has become increasingly evident. We seek to bridge this gap by exploring state-of-the-art approaches that complement experimental techniques, encompassing the anisotropic attributes of materials and, particularly in the case of single crystals, considering their orientation characteristics.

Additionally, ceramic matrix composites (CMCs) have gained significant attention in aerospace applications due to their higher temperature endurance and lighter weight compared to super alloys. Their characteristics are typically different from those of superalloys. They endure relatively higher temperature environments, and they are much lighter. CMCs are one-third the weight of nickel (Ni) superalloys, and they can further operate at temperatures up to 260 °C. However, the analytical modeling of engine components composed of CMCs requires complex test-verified progressive damage models capable of capturing all stages of damage evolution and must consider material processing and manufacturing defects.

This Special Issue seeks contributions that address the behavior of super alloys and CMCs under extreme conditions. We encourage original research articles, reviews, and case studies that encompass a wide range of topics, including but not limited to the following:

  • Experimental investigations and observations of behavior in super alloys and CMCs;
  • Analytical modeling and simulation techniques to assess fatigue life and predict failure;
  • Progressive damage modeling for CMCs, considering material processing and manufacturing defects;
  • Applications and case studies in aerospace, defense, automotive, energy and power, and electrical and electronics industries;
  • Advanced non-destructive evaluation (NDE) techniques for fault identification and characterization;
  • Comparative studies on the performance and durability of super alloys and CMCs under extreme conditions.

Contributions should provide valuable insights into the behaviors of superalloys and CMCs, supporting the broader understanding of material performances in extreme environments. Moreover, this collaborative effort will facilitate knowledge exchange, foster advancements in analytical modeling, and aid in the development of more reliable fatigue life prediction techniques.

We are inviting researchers, experts, and professionals to contribute to the comparative analysis of fatigue behavior between super alloys and ceramic matrix composites (CMCs) under harsh and complex operating conditions. This Special Issue aims to provide comprehensive insights into the performance and durability of these materials in demanding environments, particularly in the context of aerospace and turbine engine applications.

Articles and reviews dealing with the life prediction of super alloys including CMCs for different market applications, like downstream sponsors, such as manufacturers, vendors, and end users, are welcome. This Special Issue also welcomes studies on various types of superalloys and ceramic matrix composites that are used by end users, such as in aerospace and defense, automotive, energy and power, and electrical and electronics. 

Dr. Ali Abdul-Aziz
Dr. Theodore E. Matikas
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

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.


  • super alloys
  • turbine engine
  • CMC
  • composites
  • fatigue
  • NDE
  • testing
  • durability
  • CMC
  • single crystal
  • characterization
  • material defects
  • damage and fracture initiation
  • material modeling

Published Papers

This special issue is now open for submission.
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