Cobalt-Based Alloys: From Prosthetic Dentistry to Hot Turbine Components
A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".
Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 30761
Special Issue Editors
Interests: elaboration; microstructures and properties of superalloys and dental alloys (mechanical behavior, oxidation and corrosion)
Special Issues, Collections and Topics in MDPI journals
2. Luxembourg Institute of Science and Technology, 4362 Esch-sur-Alzette, Luxembourg
Interests: prosthetic dentistry and implantology; dental alloys
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
At present, cobalt-based alloys are used in various applications: as refractory alloys for the hottest parts in aeronautical or power generation turbines, corrosion-resistant alloys for dental prostheses and other biomedical devices, wear-resistant alloys for hardfacing components, amorphous alloys for applications exploiting their magnetic properties, etc. Among the first cobalt-based alloys to appear, there were the conventionally cast chromium-rich ones which emerged about a century ago for responding dentistry needs and, a little later, their cousin cobalt-based superalloys which allowed developing turbines for WWII military aircrafts. From this period, the chemical composition and elaboration techniques were more or less continuously developed and improved. New elaboration ways, metallurgical strengthening principles, or answers for enhanced resistance against corrosion, for instance, are today investigated for crystalline cobalt-based superalloys (e.g., cobalt–rhenium–chromium alloys or gamma/gamma prime Co-based single crystals) as for dental alloys (e.g., new compositions and additive manufacturing).
The purpose of this Special Issue of Crystals, entitled “Cobalt-Based Alloys: From Prosthetic Dentistry to Hot Turbine Components” is to gather the most recent research results concerning single crystalline or polycrystalline cobalt-based alloys, coming from additional studies on well-known alloys or from works on recently developed metallurgical principles and fabrication processes. In this frame, we are pleased to invite researchers to submit to us their contributions dealing with the following topics (not exhaustive list):
- Characterization of cobalt-based superalloys and other cobalt alloys for various applications;
- Study of cast, wrought, and powder metallurgy cobalt alloys;
- Innovative compositions of alloys based on cobalt or with high content in cobalt (Co–Re–Cr, Co–W–Al, high entropy alloys, etc.);
- New elaboration ways for cobalt alloys (single-crystalline solidification, additive manufacturing, etc.);
- Dependence of microstructures and properties on the chemical composition and the process parameters;
- Characterization and understanding of the mechanical deformation/rupture and wear-phenomena;
- Characterization of the behaviors in oxidation by various hot gases and in corrosion by liquid/molten medias (aqueous solutions, artificial saliva, molten salts or glasses);
- Characterization of dental Co–Cr alloys manufactured via conventional casting, milling, selective laser melting (SLM), milling soft metal.
Prof. Dr. Patrice Berthod
Dr. Pascal De March
Guest Editors
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Keywords
- Cobalt-based superalloys
- Wear-resistant cobalt alloys
- Dental cobalt alloys
- High temperature components
- Hardfacing materials
- Biomedical applications
- New compositions and elaboration ways
- Microstructure
- Mechanical properties
- Hot or room temperature oxidation and corrosion
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