ʻO ka ua-hoʻopaʻa paʻakikī ʻo ia ka ʻāpana o nā ʻāpana kila kila e hana ana i kahi kaʻina mālama wela i kapa ʻia ka paʻakikī paʻakikī e hoʻonui i ko lākou ikaika a paʻakikī. ʻO kēia kaʻina hana i ka hoʻokumu ʻana i nā ʻeke liʻiliʻi (nā ʻāpana liʻiliʻi) i loko o ka microstructure o ke kila, kahi e pale ai i ka neʻe ʻana o ka dislocation, e alakaʻi ana i ka hoʻonui ʻana i nā waiwai mechanical e like me ka ikaika a me ka paʻakikī.
ʻO nā hiʻohiʻona koʻikoʻi o ka ua-hoʻopaʻa paʻakikī.
ʻO ka ikaika kiʻekiʻe a me ka pale ʻana i ka ʻino: ʻO nā kila kuhili ka paʻakikī paʻakikī e mālama i ke kūpaʻa ʻino maʻamau o nā kila kila ʻoiai e loaʻa ana ka ikaika kiʻekiʻe ma o ke kaʻina hana wela.
Kaʻina Hoʻomaʻamaʻa wela:
1.Solution Heat Treatment: Hoʻomaʻamaʻa ʻia ke kila i kahi wela kiʻekiʻe (ma kahi o 1000 ° C a 1100 ° C) e hoʻopau i nā mea hoʻohui (e like me ke alumini, keleawe, a i ʻole niobium) i loko o kahi hopena paʻa.
2. Aging: Ma hope o ke kinai ʻana (hoʻoluʻu wikiwiki), ʻelemakule ke kila ma kahi haʻahaʻa haʻahaʻa (ma kahi o 500 ° C a 700 ° C). Hoʻoikaika kēia i ka ua o nā ʻāpana paʻakikī e keʻakeʻa i ka neʻe ʻana o ka dislocation, a laila e hoʻoikaika ai i ka mea.
3.Composition: Hoʻohui pinepine ʻia nā mea kila i hoʻopaʻa ʻia i ka ua me nā mea e like me ke keleawe, aluminika, niobium, titanium, a i ʻole molybdenum, e kōkua ana i ka ua o nā hana paʻakikī e hoʻonui ai i ka ikaika o ke kila.
Papa: ʻO kahi hiʻohiʻona kaulana o ke kila kila paʻakikī ka 17-4 PH, aia ka hao, chromium, nickel, a me ke keleawe. ʻO nā māka ʻē aʻe, e like me 15-5 PH a me 13-8 Mo, hoʻohana mau ʻia i nā noi e koi ana i ka hui pū ʻana o ka ikaika kiʻekiʻe a me ke kūpaʻa corrosion.
Nā noi: Hoʻohana nui ʻia nā kila kulika paʻa i ka ua i nā ʻoihana kahi e pono ai ka ikaika kiʻekiʻe a me ka pale ʻana i ka corrosion, e like me:
1.Aerospace: Nā ʻāpana mokulele, nā lau turbine, nā mea hoʻopaʻa.
2. Lapaʻau: ʻO nā mea hana ʻokiʻoki, implants.
3.Ka hana kemika: ʻO nā pumps, valves, a me nā mea ʻē aʻe i hōʻike ʻia i nā kaiapuni paʻakikī.
4. Moana: ʻO nā mea i ʻike ʻia i ka wai paʻakai.
1. Pono:
ʻO ka ikaika kiʻekiʻe e like me kekahi mau kila mea hana.
Kūleʻa maikaʻi loa i ka corrosion a me ka oxidation, ʻoi aku ka nui o ka wela a me ka ʻino.
Maikaʻi formability a me ka machinability i loko o ke kūlana hoʻonā.
2. Nā hemahema:
Hiki ke ʻoi aku ke kumukūʻai ma mua o nā kila kulika ʻē aʻe ma muli o nā mea hoʻohuihui a me ka hana ʻana.
ʻO ka ʻelemakule ma nā wela kiʻekiʻe no ka wā lōʻihi hiki ke hopena i ka embrittlement inā ʻaʻole mālama pono ʻia.
Nā Lakoʻa Laʻana o nā Steel Kuhili ʻole Paʻa ka ua:
1.17-4 PH (ʻike pū ʻia me 630): Aia ma kahi o 17% chromium, 4% nickel, a me 4% keleawe. ʻO kēia papa kekahi o nā mea maʻamau i hoʻohana ʻia a hāʻawi i ka hui pū ʻana o nā waiwai mechanical maikaʻi a me ke kūpaʻa corrosion.
2.15-5 PH: E like me ka 17-4 PH akā me ka paʻakikī iki a me ka pale ʻana i ka corrosion, hoʻohana pinepine ʻia i nā ʻoihana aerospace a me nā kemika.
3.13-8 Mo: Loaʻa ma kahi o 13% chromium, 8% nickel, a me molybdenum, e hāʻawi ana i ke kūpaʻa ʻoi aku ka maikaʻi.
ʻO ka hōʻuluʻulu manaʻo, ʻo nā mea kila e hoʻopaʻa ai i ka ua he mau mea maʻalahi loa ia e hoʻohui i nā pono o ke kūpaʻa ʻana o ke kila kila me nā waiwai mechanical i hoʻonui ʻia e like me ka ikaika kiʻekiʻe, e kūpono ana i nā noi noi ma nā ʻoihana lehulehu.
