美国冶金专家研制成功一种新型钛合金,用它制造飞机发动机重量可以减轻45kg,且功率也能大大提高.为了使用钛、铝和铌三种金属组成的钛合金更适用于飞机发动机,专家们多年来一直在努力寻找它们之间最佳的比例.因为在铌的含量较低(占13%左右)时,该合金在室温下韧度不佳;在铌的含量较高时,该合金在高温下强度较差.这次研制的新型钛合金,含有25%的铌,它具有良好的韧性和很高的强度,非常适用于飞机发动机. US metallurgists successfully developed a new type of titanium alloy, which can be used to manufacture aircraft engine weight can be reduced by 45kg, and the power can be greatly improved.To use titanium, aluminum and niobium three titanium alloy is more suitable for aircraft engines, experts For many years, efforts have been made to find the best ratio between them because the alloy has poor toughness at room temperature when the niobium content is low (about 13%), and when the niobium content is high, Under high temperature, the strength is poor.The new titanium alloy developed by this time contains 25% niobium, which has good toughness and high strength and is very suitable for aircraft engines.