飞机上的发动机和工业上的燃气轮机所用的材料,必须耐高温而且不脆化、无膨胀收缩、在高温气流中不燃着、不腐蚀。英国赫勒福德郡(Hereford)生产适合于这种条件的材料——耐热高强度金属性超合金,因而成了欧洲超合金生产的中心。这种合金是美国 Inco Alloys 公司研制 Materials used in aircraft engines and industrial gas turbines must be heat-resistant and not brittle, have no expansion and contraction, and should not be flammable and non-corrosive in hot air streams. Hereford, UK, produces materials suitable for such conditions - heat-resistant and high-strength metallic superalloys and thus has become the center of European superalloy production. This alloy is developed by the United States Inco Alloys company