Kukho amawaka amanqanaba ensimbi ye-alloy namashumi amawaka eenkcazo ezisetyenzisiweyo phandle. Iziphumo zeakhawunti yentsimbi ye-alloy malunga ne-10% yemveliso yentsimbi. Siyinto ebalulekileyo yentsimbi esetyenziswe ngokubanzi kulwakhiwo lwelizwe lonke nolwakhiwo lokhuseleko.
Ukusukela ngo-1970, ukuphuculwa kwe-alloyamandla aphezuluEhlabathini lonke lingene kwixesha elitsha. Ngokusekwe kwitekhnoloji eqengqeni elawulwayo kunye ne-microallourgysgergy, amandla anamhlanje asezantsi, enguShulangathanga, oyile i-microalfalloles, alungiselele umxholo.
Ngo-1980s, ukuphuculwa kweentlobo ngeentlobo kubandakanya uluhlu olubanzi lwamabala emizi-mveliso kunye nodidi lwezixhobo ezizodwa zafikelela kwitekisi yokufezekiswa kwetekhnoloji ye-mekhelgation. yentsimbi, indawo ebalaseleyo yesakhiwo sensimbi kunye nesakhiwo esihle esincinci sibalaseliswa okokuqala. Ikwabonisa ukuba uphando olusisiseko lwensimbi eliphantsi le-alloy sele ivuthiwe kwaye ingalungiswa. Ingcinga entsha yeUyilo lwe-Aleloy.