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MachinableTungstenAlloy

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Omole, S.; Lunt, A.; Kirk, S.; Shokrani, A. Advanced Processing and Machining of Tungsten and Its Alloys. J. Manuf. Mater. Process. 2022, 6, 15. https://doi.org/10.3390/jmmp6010015

Omole, S., Lunt, A., Kirk, S., & Shokrani, A. (2022). Advanced Processing and Machining of Tungsten and Its Alloys. Journal of Manufacturing and Materials Processing, 6(1), 15. https://doi.org/10.3390/jmmp6010015

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Feature papers represent the most advanced research with significant potential for high impact in the field. A Feature Paper should be a substantial original Article that involves several techniques or approaches, provides an outlook for future research directions and describes possible research applications.

Omole S, Lunt A, Kirk S, Shokrani A. Advanced Processing and Machining of Tungsten and Its Alloys. Journal of Manufacturing and Materials Processing. 2022; 6(1):15. https://doi.org/10.3390/jmmp6010015

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Abstract: Tungsten is a refractory metal with the highest melting temperature and density of all metals in this group. These properties, together with the high thermal conductivity and strength, make tungsten the ideal material for high-temperature structural use in fusion energy and other applications. It is widely agreed that the manufacture of components with complex geometries is crucial for scaling and optimizing power plant designs. However, there are challenges associated with the large-scale processing and manufacturing of parts made from tungsten and its alloys which limit the production of these complex geometries. These challenges stem from the high ductile-to-brittle transition temperature (DBTT), as well as the strength and hardness of these parts. Processing methods, such as powder metallurgy and additive manufacturing, can generate near-net-shaped components. However, subtractive post-processing techniques are required to complement these methods. This paper provides an in-depth exploration and discussion of different processing and manufacturing methods for tungsten and identifies the challenges and gaps associated with each approach. It includes conventional and unconventional machining processes, as well as research on improving the ductility of tungsten using various methods, such as alloying, thermomechanical treatment, and grain structure refinement. Keywords: tungsten; ductility; microstructure; powder metallurgy; additive manufacturing; machining

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Omole, Samuel, Alexander Lunt, Simon Kirk, and Alborz Shokrani. 2022. "Advanced Processing and Machining of Tungsten and Its Alloys" Journal of Manufacturing and Materials Processing 6, no. 1: 15. https://doi.org/10.3390/jmmp6010015