Powder Metallurgy
A special issue of Metals (ISSN 2075-4701).
Deadline for manuscript submissions: closed (31 December 2015) | Viewed by 8578
Special Issue Editor
Interests: mathematical modeling of PM materials and their processing; development of metal matrix composites; welding of wrought metals to PM compacts
Special Issue Information
Dear Colleagues,
The upcoming Special Issue will focus on the " Recent Developments in Powder Metallurgy". The boundaries of Powder Metallurgy have now been extended to cover the processing, microstructure, properties, and applications of consolidated powders of difficult-to-process materials. Examples include titanium, its alloys, and titanium matrix compounds. Components having intricate shapes and possessing superior physical and mechanical properties are, nowadays, produced for aerospace, medical, and marine applications, although further research is being carried out in order to refine the processes and optimize the process parameters.
Among the processes that are gaining wide-spread industrial applications are Electron Beam and Laser Beam Additive Manufacturing (EBAM and LBAM), particularly when consolidating powders such as Ti-6Al and Ti-Al-4V. Both processes are, in fact, descendants of rapid prototyping, and enable manufacturing full dense components additively, layer-by-layer directly from a CAD file.
Another innovative process is Metal Injection Molding (MIM), which is mainly used for stainless steel, low-alloy nickel steels, magnetic alloys, tungsten, and high performance alloys, such as Inconel 718 and 625, Hastelloy, and superalloys.
There is also an emerging interest in producing components combining both wrought and PM parts, which posses superior vibration damping and sound deadening properties. These two dissimilar parts are combined through appropriate welding, brazing, or diffusion processes.
Equally important, newly developed materials and innovative processing of conventional materials enabled the achievement of superior properties that were not attainable before. Super austerities stainless steel, nitrogen solid-solution strengthening of PM titanium, and Ti Ni shape-memory alloys with added TiO2, are some examples.
Papers on the refinement of EBAM, LBAM, MIM, and the joining of wrought and porous metals, through experimentation and analysis or mathematical modeling are of particular interest and are invited for inclusion in this Special Issue on the "Recent Developments in Powder Metallurgy. Current Review articles of those processes in the industry are also welcomed.
Prof. Dr. Sherif D. El Wakil
Guest Editor
Manuscript Submission Information
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Keywords
- EBAM
- LBAM
- MIM
- Super stainless steel
- Shape memory alloys