Physical Metallurgy of Refractory Alloys
A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Entropic Alloys and Meta-Metals".
Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 501
Special Issue Editor
Interests: mechanical properties; micromechanics; martensitic transformations; physical metallurgy of tungsten alloys
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
The high melting temperature, high strength at elevated temperatures, low thermal expansion, and high heat conduction make tungsten a favored candidate material for terrestrial energy production facilities. Tungsten and its alloys are fabricated as powders through the reduction of tungsten oxide, consolidation by sintering, activated sintering or liquid phase sintering. Heavy tungsten alloys bound by nickel, iron or copper are used as radiation shields, balancing weights, and penetrators. At higher temperatures, tungsten alloys are used for tools and molds for metal and glass forming. At higher temperatures under a protective atmosphere, tungsten is used for heating filaments and electrodes for welding. The strong chemical bonds of tungsten make its microstructure stable at elevated temperatures and generate potential for developing high-strength alloys for elevated temperature service. However, applications are limited by the brittle–ductile transition at about 800 °C and its high reactivity with oxygen and the volatility of its oxides. These limitations are encountered by alloying with other refractory metals. The high bond strength and high atomic mass of tungsten make it stable against radiation damage and a leading candidate for the first wall material in fusion reactors.
A Special Issue of Metals will be devoted to the physical metallurgy of the metallic alloys of tungsten. It is intended to give an account of the 2021 scientific and technological state of the art of recent and potential developments of tungsten alloys and environmental protection (see the Keywords/Topics below). Your contribution to this 2021 account is highly valuable and appreciated.
Prof. Roni Shneck
Guest Editor
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Keywords
- tungsten alloys and coatings
- refractory metal alloys
- sintering and shaping of tungsten alloys
- tungsten heavy metal
- tungsten penetrators
- high-strength alloys
- elevated temperature
- oxidation resistant tungsten alloys
- tungsten tools and molds
- tungsten radiation shields
- first wall reactor material
- radiation damage
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