Idan ma'adanin karfe ya jefa simintin simintin gyare-gyaren nickel ta hanyar simintin saka hannun jari na kakin zuma (nau'in simintin daidaitaccen simintin), to za'a sami simintin simintin gyare-gyare na nickel gami. Alloy na tushen nickel wani nau'i ne na babban gami tare da nickel a matsayin matrix (gaba ɗaya mafi girma fiye da 50%) da jan ƙarfe, molybdenum, chromium da sauran abubuwa azaman abubuwan haɗin gwiwa. Babban abubuwan da aka haɗa da abubuwan haɗin gwiwar nickel sune chromium, tungsten, molybdenum, cobalt, aluminum, titanium, boron, zirconium da sauransu. Daga cikin su, Cr, Al, da dai sauransu, yafi taka wani anti-hadawan abu da iskar shaka sakamako, da sauran abubuwa da m bayani ƙarfafa, hazo ƙarfi da hatsi iyaka ƙarfafa. Alloys tushen nickel galibi suna da tsarin austenitic. A cikin yanayin m bayani da tsufa magani, akwai kuma intermetallic bulan da karfe carbonitrides a kan austenite matrix da hatsi iyakoki na gami. Abubuwan da ake amfani da su na nickel suna da ƙarfi mai ƙarfi da juriya mai kyau na iskar shaka, juriya na lalata da kuma juriya mai girma a cikin kewayon 650 zuwa 1000 ° C. Alloy na tushen nickel shine gama gari na gama-gari na juriya mai zafi. Abubuwan da ake amfani da su na nickel sun kasu kashi-kashi zuwa gadaje masu jure zafi na nickel, abubuwan da ke da alaƙa da lalatawar nickel, gami da abubuwan da ke da alaƙa da nickel, gami da ƙayyadaddun ƙayyadaddun ƙirar nickel bisa ga manyan kaddarorin su. Superalloys na tushen nickel, superalloys na tushen baƙin ƙarfe da superalloys na tushen nickel gabaɗaya ana kiransu galoli masu zafi. Don haka, ana kiran superalloys na tushen nickel a matsayin alluran tushen nickel. Abubuwan da ake amfani da su na superalloy na tushen nickel ana amfani da su sosai a cikin jirgin sama, sararin samaniya, man fetur, sinadarai, makamashin nukiliya, ƙarfe, marine, kare muhalli, injina, lantarki da sauran fannoni. Maki da hanyoyin maganin zafi da aka zaɓa don sassa daban-daban na inji za su bambanta.
