Rhenium has been discovered for almost a century, but it is still an unfamiliar element to most of us. It ranks 75th on the periodic table of the chemical elements and is the most recently discovered natural element. Rhenium is a silver-white metal with little natural content. Rhenium is less abundant in the earth’s crust […]
Tungsten is the most heat-resistant metal, and it has the highest density and strength of refractory metals. Tungsten alloys with alloying elements have good wear resistance, corrosion resistance, electrical conductivity, and thermal conductivity. The mechanism design and safety performance of aerospace equipment are closely related to the physical, chemical and mechanical properties of the materials […]
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