
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.
I-Exceptional Corrosion Resistance: Lesi yisakhiwo sabo esibachazayo. Banikeza ukumelana okuvelele ezinhlobonhlobo ze-corrosives, kuhlanganise:
Ama-asidi: i-sulfuric acid, i-hydrochloric acid, i-phosphoric acid.
I-Caustics: Izixazululo ezinamandla ze-alkaline.
Ukuhlasela Okubangelwa I-Chloride: Ukugqwala kwemigodi nokuqhekeka, okuyizindlela zokwehluleka eziyinhloko zezinsimbi ezingenasici ezijwayelekile.
I-Stress Corrosion Cracking (SCC): Imelana kakhulu nokuqhekeka ngaphansi kwesenzo esihlanganisiwe sokuqina kwengcindezi nendawo elimazayo.
Ukuhlukahluka: Uhlu olubanzi lokuqanjwa kwe-alloy luvumela izakhiwo zokuthunga ukuze ziqondise izimo ezithile zokubola (isb., i-Mo ephezulu yokumelana ne-chloride, i-Cr ephezulu yezindawo ze-oxidizing).
Ukusebenza Okuhle Kwezinga Lokushisa Okuphezulu: Eziningi zalezi zingxubevange zakha isikali se-oxide esizinzile, esivikelayo (esisekelwe ku-Cr₂O₃), esizivumela ukuthi zimelane ne-oxidation kanye ne-carburization emazingeni okushisa aphakeme.
Izinto Ezinhle Kakhulu Zemishini: Zigcina amandla amahle kanye nokuqina kusuka emazingeni okushisa e-cryogenic kuze kufike emazingeni okushisa aphezulu.
Ama-alloys amelana nokugqwala asuselwa ku-nickel angahlukaniswa abe imindeni eminingana emikhulu, ngayinye ithuthukiselwe izinselele ezahlukene.
| Umndeni we-alloy | Izinto Eziyisihluthulelo Zokuhlanganisa | Izibonelo Eziyisithonjana | I-Primary Corrosion Resistance & Applications |
| I-Nickel-Chromium | Ngi, Cr | Ingxubevange 600 | Ukumelana ne-oxidation emazingeni okushisa aphezulu; izindawo ze-caustic. |
| I-Nickel-Chromium-Iron | Ngi, Cr, Fe | Ingxubevange 800/800H | I-high-temperature oxidation kanye nokumelana ne-carburization; imishini yokwelapha ukushisa. |
| I-Nickel-Chromium-Molybdenum | Ni, Cr, Mo | C-276, C-22, C-2000 | Umndeni oguquguquka kakhulu. Ukumelana okuphakeme kokugoba, ukugqwala kwe-crevice, kanye nohlu olubanzi lwama-acids nama-chloride. Isetshenziswa ekucubunguleni amakhemikhali, i-flue gas desulfurization, nokulawulwa kokungcoliswa kwemvelo. |
| I-Nickel-Chromium-Molybdenum ene-Copper | Ni, Cr, Mo, Cu | Ingxubevange 400, Ingxubevange 825 | ukumelana okuhle kakhulu kwe-sulfuric ne-phosphoric acid; esetshenziswa kabanzi ekucutshungulweni kwasolwandle namakhemikhali. |
| I-Nickel-Molybdenum | Ngi, Mo | Ingxubevange B-2, B-3 | Ukumelana okukhethekile ezindaweni ezincishisiwe (ama-non-oxidizing acid) njenge-hydrochloric acid. |
| I-Nickel-Chromium-Molybdenum eneNitrogen | Ni, Cr, Mo, N | Ingxubevange 625, ingxubevange 718 | Ihlanganisa amandla aphezulu (kusukela ekuqineni kwemvula) nokugqwala okuhle kakhulu nokumelana ne-oxidation. Isetshenziswa ku-aerospace, amakhemikhali, nobunjiniyela basolwandle. |