经多年研究,美国最近开发了一种用于气体透平、压缩机等设备高温密封的优良自补性铝合金薄膜材料。此材料由X-铬-Z-铝或X-铬-Q-铝元素组成,其中X为铁、钴、镍元素,Z为钇、钪或稀土金属元素,Q为铪、锆、铌、钽元素。合金组成中铬占10～27%(重量), After years of research, the United States recently developed an excellent self-healing aluminum alloy film material for high temperature sealing of gas turbines, compressors and other equipment. The material consists of X-chrome-Z-aluminum or X-chrome-Q-aluminum elements, where X is iron, cobalt, nickel, Z is yttrium, scandium or a rare earth metal element, Q is hafnium, zirconium, niobium, tantalum element. Alloy composition of chromium accounted for 10 to 27% (by weight)