ʻO ke kuleana o nā mea hoʻohui like ʻole i ka alumini alumini

Silika (Si)
ʻO Silicon (Si) ka mea nui no ka hoʻomaikaʻi ʻana i ka wai. Hiki ke loaʻa ka wai maikaʻi loa mai ka eutectic a i ka hypereutectic. Eia nō naʻe, ʻo ke kilika (Si) e hoʻoheheʻe ʻia e hana i nā kiko paʻakikī, e ʻoi aku ka maikaʻi o ka ʻoki ʻana. No laila, ʻaʻole ʻae ʻia e ʻoi aku ma mua o ke kiko eutectic. Eia kekahi, hiki i ka silicon (Si) ke hoʻomaikaʻi i ka ikaika tensile, ka paʻakikī, ka ʻoki ʻana i ka hana, a me ka ikaika i nā mahana kiʻekiʻe me ka hōʻemi ʻana i ka elongation.
ʻO ka Magnesium (Mg) Aluminum-magnesium alloy ka maikaʻi o ka pale ʻana i ka corrosion. No laila, ʻo ADC5 a me ADC6 he mau mea hoʻoheheʻe kūʻokoʻa. He nui loa kona laulā paʻa, no laila he wela wela, a hiki ke hoʻoheheʻe ʻia nā mea hoʻoheheʻe, paʻakikī ke hoʻolei ʻana. ʻO Magnesium (Mg) ma ke ʻano he haumia i nā mea AL-Cu-Si, e hana ʻo Mg2Si i ka hoʻoheheʻe ʻana, no laila ʻo ka maʻamau i loko o 0.3%.

ʻO ka hao (Fe) ʻOiai hiki i ka hao (Fe) ke hoʻonui nui i ka recrystallization wela o ka zinc (Zn) a hoʻolōʻihi i ke kaʻina hana recrystallization, i ka hoʻoheheʻe ʻana i ka make, hiki mai ka hao (Fe) mai nā pahu hao, nā paipu gooseneck, a me nā mea hoʻoheheʻe. hiki ke hoʻoheheʻe ʻia i loko o ka zinc (Zn). ʻO ka hao (Fe) i lawe ʻia e ka alumini (Al) he liʻiliʻi loa, a ke ʻoi aku ka hao (Fe) ma mua o ka palena hiki ke hoʻoheheʻe ʻia, e kristal ia e like me FeAl3. ʻO nā hemahema i hoʻokumu ʻia e Fe ka nui o ka hoʻoulu ʻana i ka pala a me ka lana e like me nā pūhui FeAl3. Lilo ka hoʻolei ʻana, a deteriorates ka machinability. Hoʻopili ka wai o ka hao i ka maʻalahi o ka ʻili hoʻoheheʻe.
ʻO nā haumia o ka hao (Fe) e hoʻopuka i nā kristal e like me ka nila o FeAl3. Ma muli o ka hoʻomaʻalili ʻana o ka make-casting, maikaʻi loa nā kristal i hoʻoheheʻe ʻia a ʻaʻole hiki ke manaʻo ʻia he mau mea ʻino. Inā emi ka mea ma lalo o 0.7%, ʻaʻole maʻalahi ka demold, no laila ʻoi aku ka maikaʻi o ka hao o 0.8-1.0% no ka make-casting. Inā nui ka hao (Fe), e hana ʻia nā pūhui metala, e hana ana i nā kiko paʻakikī. Eia kekahi, ke ʻoi aku ka nui o ka hao (Fe) ma mua o 1.2%, e hōʻemi ia i ka wai o ka huila, e hōʻino i ka maikaʻi o ka hoʻolei ʻana, a pōkole ke ola o nā mea metala i loko o nā mea hana make.

ʻO Nickel (Ni) E like me ke keleawe (Cu), aia kahi manaʻo e hoʻonui i ka ikaika tensile a me ka paʻakikī, a he hopena koʻikoʻi ia i ka pale ʻana i ka corrosion. I kekahi manawa, hoʻohui ʻia ka nickel (Ni) e hoʻomaikaʻi i ka ikaika wela kiʻekiʻe a me ke kūpaʻa wela, akā he hopena maikaʻi ʻole ia i ke kūpaʻa corrosion a me ka conductivity thermal.

Manganese (Mn) Hiki iā ia ke hoʻomaikaʻi i ka ikaika wela kiʻekiʻe o nā mea hoʻohui i loaʻa ke keleawe (Cu) a me ke silikoni (Si). Inā ʻoi aku ia ma mua o kekahi palena, ua maʻalahi ka hana ʻana i nā pūhui quaternary Al-Si-Fe-P+o {T*T f;X Mn, hiki ke hana maʻalahi i nā kiko paʻakikī a hoʻemi i ka conductivity thermal. Hiki i ka Manganese (Mn) ke pale i ke kaʻina hana recrystallization o nā alumini alumini, hoʻonui i ka mahana recrystallization, a hoʻomaʻemaʻe nui i ka palaoa recrystallization. ʻO ka hoʻomaʻemaʻe ʻana i nā kīʻaha recrystallization ma muli o ka hopena keakea o nā ʻāpana hui MnAl6 i ka ulu ʻana o nā kīʻaha recrystallization. ʻO kekahi hana ʻē aʻe o MnAl6 ʻo ia ka hoʻoheheʻe ʻana i ka hao haumia (Fe) e hana (Fe, Mn) Al6 a hoʻemi i nā hopena ʻino o ka hao. ʻO Manganese (Mn) he mea koʻikoʻi o nā alumini alumini a hiki ke hoʻohui ʻia ma ke ʻano he Al-Mn binary alloy kūʻokoʻa a i ʻole me nā mea hoʻohui ʻē aʻe. No laila, ʻo ka hapa nui o nā alumini alumini he manganese (Mn).

Zinc (Zn)
Inā loaʻa ka zinc maʻemaʻe (Zn), e hōʻike ana ia i ka brittleness wela kiʻekiʻe. Eia nō naʻe, ke hui pū ʻia me ka mercury (Hg) e hana i nā ʻāpana HgZn2 ikaika, hoʻopuka ia i kahi hopena hoʻoikaika nui. Hōʻike ʻo JIS i ka ʻike o ka zinc maʻemaʻe (Zn) ma lalo o 1.0%, ʻoiai hiki i nā kūlana haole ke ʻae i ka 3%. ʻAʻole kēia kūkākūkā e pili ana i ka zinc (Zn) ma ke ʻano he mea hoʻoheheʻe ʻia akā ʻo kona kuleana ma ke ʻano he haumia e hoʻomaka ai i nā māwae i ka hoʻolei ʻana.

Chromium (Cr)
Hoʻokumu ʻo Chromium (Cr) i nā pūhui intermetallic e like me (CrFe) Al7 a me (CrMn) Al12 i loko o ka alumini, ke keʻakeʻa nei i ka nucleation a me ka ulu ʻana o ka recrystallization a hāʻawi i kekahi mau hopena hoʻoikaika i ka alloy. Hiki iā ia ke hoʻomaikaʻi i ka paʻakikī o ka huila a hoʻemi i ka naʻau o ka ʻānai ʻana. Eia naʻe, hiki ke hoʻonui i ka naʻau hoʻopiʻi.

Titanium (Ti)
ʻO kahi liʻiliʻi liʻiliʻi o ka titanium (Ti) i loko o ka huila hiki ke hoʻomaikaʻi i kona mau waiwai mechanical, akā hiki ke hoʻemi i kona conductivity uila. ʻO ka maʻiʻo koʻikoʻi o ka titanium (Ti) ma Al-Ti series alloys no ka paʻakikī paʻakikī ma kahi o 0.15%, a hiki ke hoʻemi ʻia kona hele ʻana me ka hoʻohui ʻana o ka boron.

Lead (Pb), Tin (Sn), a me Cadmium (Cd)
Hiki ke noho ka calcium (Ca), ke kēpau (Pb), ke tin (Sn), a me nā mea haumia ʻē aʻe i loko o nā alumini alumini. No ka mea he ʻokoʻa nā helu heheʻe a me nā hale o kēia mau mea, hana lākou i nā pūhui like ʻole me ka alumini (Al), e hopena i nā hopena like ʻole i nā waiwai o nā alumini alumini. He haʻahaʻa loa ka hoʻoheheʻe paʻa ʻana o ka calcium (Ca) i ka alumini a hoʻokumu i nā pūhui CaAl4 me ka alumini (Al), hiki ke hoʻomaikaʻi i ka hana ʻoki ʻana o nā alumini alumini. ʻO ke kēpau (Pb) a me ka tin (Sn) he mau metala hoʻoheheʻe haʻahaʻa me ka haʻahaʻa haʻahaʻa paʻa i loko o ka alumini (Al), hiki ke hoʻohaʻahaʻa i ka ikaika o ka alloy akā e hoʻomaikaʻi i kāna hana ʻoki.

ʻO ka hoʻonui ʻana i ka maʻiʻo kepau (Pb) hiki ke hōʻemi i ka paʻakikī o ka zinc (Zn) a hoʻonui i kona solubility. Eia nō naʻe, inā ʻoi aku kekahi o ke kēpau (Pb), tin (Sn), a i ʻole cadmium (Cd) i ka nui i ʻōlelo ʻia i loko o kahi alumini: zinc alloy, hiki ke ʻino. ʻAʻole maʻamau kēia corrosion, hiki mai ma hope o kekahi manawa, a ʻōlelo nui ʻia ma lalo o nā ea hau kiʻekiʻe.