Mythological characters that can be found on the periodic table include Tantalus (Tantalum, ta) and his daughter Niobe (Niobium, Nb), and Promethius (Promethium, Pm).
元素表中可以找到神话中的角色,比如坦塔罗斯(钽)和他的女儿尼俄伯(铌),还有普罗米修斯(钷)。
2
The wear resistance of niobium alloyed cast iron was studied. Result shows that the wea resistance of cast iron containing 0.15-0.4%nb is about 5 times higher than gray iron.