铼及其合金具有优越的机械和物理性能,在约达1000℃的温度下氧化稳定性优异,因此在结构材料领域中重要性愈来愈大。虽然铼的成本较高,但是在其他金属失效的场合往往都使用铼合金。作为合金元素,铼与钨、钼共同赋予其它合金以高的硬度和其它优越的性能。制取方法铼可以在真空或保护气氛中熔炼;但是用这类 Rhenium and its alloys have superior mechanical and physical properties, are excellent in oxidation stability at temperatures up to about 1000 ° C, and are therefore of increasing importance in the field of structural materials. Although the cost of rhenium is high, rhenium alloys are often used in the event of failure of other metals. As an alloying element, rhenium together with tungsten and molybdenum give the other alloys high hardness and other superior properties. Preparation methods Rhenium can be melted in a vacuum or protective atmosphere; but with this