Ama-superalloy akhiwe nge-nickel ayikilasi lezinto ezisebenza kahle ezidizayinelwe amandla akhethekile emishini, ukumelana nokunyakaza, nokuzinza kwesakhiwo emazingeni okushisa aphakeme, ngokuvamile angaphezu kuka-540°C (1000°F). Igama elithi "okwenziwe" lisho ukuthi lawa ma-alloys alolongwa abe yisimo sawo sokugcina ngokusebenzisa izinqubo ze-thermomechanical ezifana nokufoja, ukugingqika, noma ukukhishwa, okuholela ekwakhekeni kokusanhlamvu okuhle, okuqondisayo okuhlinzeka ngezici eziqinile eziqinile nokukhathala uma kuqhathaniswa nozakwabo babalingisi. Ziwumgogodla wezingxenye ezijikelezayo ezinezinga eliphezulu lokushisa emkhathini nasekuphehleni amandla, lapho ukwehluleka kungeyona inketho.

Ama-alloys amelana nokugqwala asuselwa ku-nickel ayikilasi lezinto zensimbi ezithuthukisiwe ezakhelwe ngokuyinhloko ukumelana nezindawo ezigqwala kakhulu. Isisekelo sazo siyi-matrix ye-nickel (Ni), ekwazi ukumelana ngokwemvelo nezinto ezibolayo eziningi, ezihlanganiswe nezinye izakhi ezibalulekile—ikakhulukazi i-chromium (Cr), i-molybdenum (Mo), futhi ngezinye izikhathi ithusi (Cu) ne-nitrogen (N)—ukwakha umndeni oguquguqukayo nonamandla wezinto zokusebenza zamakhemikhali nezimboni ezinolaka kakhulu. Ziyisixazululo lapho izinsimbi ezingenasici zingasenelanga.

Ama-alloys akhiwe nge-ayoni enziwe nge-high-temperature ayikilasi lezinto zensimbi ezinensimbi (Fe) njengento eyinhloko, eklanyelwe ukugcina amandla emishini emihle kanye nokumelana nokonakala (njenge-oxidation) emazingeni okushisa aphakeme, ngokuvamile ebangeni lika-540°C kuya ku-760°C (1000°F kuya ku-1400°F). Igama elithi "okwenziwayo" libonisa ukuthi akhiwe izinqubo ze-thermomechanical ezifana nokuginqika okushisayo, ukufoja, noma i-extrusion, ecwenga i-microstructure yazo ukuze inikeze inhlanganisela evumayo yamandla, i-ductility, kanye nokwenziwa. Asebenza njengesixazululo esingabizi kakhulu nesiguquguquka kakhulu sohlu olubanzi lwezinhlelo zokusebenza ezisezingeni lokushisa eliphezulu, ukuvala igebe lokusebenza phakathi kwezinsimbi ezingenasici kanye ne-nickel ebiza kakhulu noma ama-superalloy asekelwe ku-cobalt.

Ama-superalloy asekelwe ku-cobalt ayikilasi lezinto zensimbi ezisebenza kahle eziklanyelwe ukugcina amandla akhethekile emishini, ukuzinza kwendawo, nokumelana nokugqwala emazingeni okushisa aphakeme kakhulu, ngokuvamile adlula lawo lapho ama-superalloy asekelwe ku-nickel eqala ukuba buthaka. Ziyitshe legumbi lezingxenye ezibalulekile ezindaweni ezidinga kakhulu, ikakhulukazi endaweni yezindiza, izinjini zegesi yezimboni, nezifakelo zezokwelapha. Ukusebenza kwawo okuphakeme kubangelwa i-cobalt-chromium matrix eqinisiwe kanye nenani eliphakeme lezinhlayiya ze-carbide eziqinile, eziphikisayo.