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Electron Beam Melting Gets Brittle Metal into Shape


Karlsruhe Institute of Technology
Tungsten component produced by 3D printing using electron beam melting. (Photo: Markus Breig, KIT)
Tungsten has the highest melting point of all metals, 3,422 degrees Celsius. This makes the material ideal for use at high temperatures in e.g. space rocket nozzles, heating elements of high-temperature furnaces, or the fusion reactor. However, the metal is highly brittle and, hence, difficult to process. Researchers of Karlsruhe Institute of Technology (KIT) have developed an innovative approach to making this brittle material soft. To process tungsten, they have determined new process parameters for electron beam melting.
Tungsten is a metal with very attractive properties: It is corrosion-resistant and as heavy as gold. In the form of tungsten carbide, it is as hard as diamond. And it has the highest melting point of all metals, 3,422 degrees Celsius. However, the metal is highly brittle at room temperature. Due to its properties, tun ....

Steffen Antusch , Alexander Klein , Institute For Applied Materials , Materials Center , European Fusion Programme , Helmholtz Association , Researchers Of Karlsruhe Institute Technology , Karlsruhe Institute , Applied Materials , Materials Science , Enables Processing , Titanium Components , Karlsruhe Institute Of Technology , அலெக்சாண்டர் க்ளீன் , நிறுவனம் க்கு பயன்படுத்தப்பட்டது பொருட்கள் , பொருட்கள் மையம் , ஆராய்ச்சியாளர்கள் ஆஃப் கார்ல்‌ஸ்ரூ நிறுவனம் தொழில்நுட்பம் , கார்ல்‌ஸ்ரூ நிறுவனம் , பயன்படுத்தப்பட்டது பொருட்கள் , பொருட்கள் அறிவியல் , டைட்டானியம் கூறுகள் , கார்ல்‌ஸ்ரூ நிறுவனம் ஆஃப் தொழில்நுட்பம் ,