超级耐热合金也叫超合金和高温合金，有镍基、铁基、钴基等合金，而其中高温强度最好的，目前主要是镍基高温合金。镍基超合金是以Ｎｊ成分为主体的固溶体相（ｒ相）通过析出相（ｒ’相）强化的合金、最近还开发了添加Ｒｅ或Ｉｒ之类高熔点金属，使ｒ相和ｒ’相自身固溶强化， Super heat-resistant alloys, also known as superalloys and superalloys, are nickel-based, iron-based, cobalt-based alloys, of which the best high-temperature strength, the current main is nickel-based superalloy. Nickel-based superalloys are alloys in which the solid solution phase (r phase) mainly composed of Nj components is strengthened by the precipitated phase (r ’phase). Recently, the addition of high-melting-point metals such as Re or Ir has been developed so that r phase and r’ phase Own solid solution strengthening,