Hoʻolauna
ʻO ka ʻimi e ʻike i nā metala ikaika loa he mea hoʻoikaika ma hope o ka holomua ʻenehana i nā ʻoihana like ʻole. Mai ka ʻenehana aerospace a hiki i ke kūkulu ʻana, ʻo ka ikaika o kahi metala e hoʻoholo i kona kūpono no nā noi koʻikoʻi. I loko o kēia loiloi piha, ʻimi mākou i nā metala ikaika loa ʻelima i ʻike ʻia e ka ʻepekema, e ʻimi ana i kā lākou mau waiwai, nā noi, a me nā loina ʻepekema e kōkua i ko lākou ikaika ʻokoʻa.
He mea koʻikoʻi ka hoʻomaopopo ʻana i nā mea e hoʻoikaika ai i ka ikaika o ka metala no nā mea ʻepekema waiwai a me nā ʻenekinia. ʻO kēia mau mea e pili ana i ke ʻano atomic, ka hoʻopaʻa ʻana, a me ke alo o nā alloys. ʻO nā metala e like me ke kila ka mea i mua ma muli o ko lākou mau waiwai. I ke ʻano wae, Ua hoʻololi nā ʻano kila ikaika i ka ʻenekinia hou ma o ka hāʻawi ʻana i kahi kaulike ma waena o ka ikaika, ductility, a me ke kumu kūʻai.
1. Tungsten
Kaulana ʻo Tungsten no ka loaʻa ʻana o ka ikaika tensile kiʻekiʻe loa o kekahi metala maoli, ʻo ia ke ana o ka ikaika e koi ʻia e huki i kekahi mea a hiki i kahi e haki ai. Me ka ikaika tensile ma kahi o 1,510 megapascals (MPa), paʻa loa ka tungsten. ʻO kona wahi hoʻoheheʻe kiʻekiʻe a me kona mānoanoa e kūpono ia no nā noi i nā ʻoihana uila, pūʻali koa, a me nā ʻoihana aerospace.
ʻO nā waiwai kūʻokoʻa o ka metala ma muli o kona ʻano atomika a me nā paʻa metala ikaika ma waena o kāna mau ʻātoma. ʻO ka hiki o Tungsten ke kū i nā mahana wela me ka ʻole o ka hoʻololi ʻana he mea waiwai ia no nā mea like me nā nozzles engine rocket a me nā projectiles kiʻekiʻe.
2. Ke kila
ʻO ke kila he mea hao i haku mua ʻia me ka hao a me ke kalapona. ʻO ka hoʻohui ʻana o ke kalapona a me nā mea ʻē aʻe e like me ka chromium, nickel, a me ka manganese e hoʻonui i kona ikaika a paʻa. Ma muli o kona haku mele ʻana a me ka mālama ʻana, hiki i ke kila ke hōʻike i kahi ākea o nā ikaika a me nā ductilities. ʻo kahi laʻana, hoʻohana ʻia nā ʻano kila ikaika e like me ke kila kalapona kiʻekiʻe i nā mea ʻoki a me nā pūnāwai ma muli o ko lākou paʻakikī.
ʻO ka versatility o ke kila he pōhaku kihi i ke kūkulu ʻana a me ka hana ʻana. ʻO nā hana hou i ka hana kila, e like me ka thermo-mechanical processing a me ka micro-alloying, ua alakaʻi i nā kila ikaika kiʻekiʻe, haʻahaʻa-alloy (HSLA) e hāʻawi ana i nā waiwai mechanical i hoʻonui ʻia me ka piʻi ʻole o ke kaumaha.
3. Chromium
Ua ʻike ʻia ʻo Chromium no kona paʻakikī kiʻekiʻe a me ke kūpaʻa ʻana i ka corrosion. Me ka paakiki Mohs o 8.5, chromium kekahi o na metala paakiki loa. Hoʻohana pinepine ʻia e paʻi i nā metala ʻē aʻe e pale iā lākou a hoʻomaikaʻi i ko lākou helehelena. Hoʻohana ʻia ka ikaika o Chromium i ka hana ʻana i ke kila kila, kahi e hoʻonui ai i ke kūpaʻa ʻana o ka alloy i ka oxidation a me ka pala.
ʻO ka hoʻohui ʻana o ka chromium i ke kila, ma ka liʻiliʻi he 10.5% ma ka nuipaʻa, hana i kahi ʻāpana ʻokikene lahilahi ma ka ʻili o ke kila, e pale ana i ka ʻino hou ʻana - kahi waiwai i kapa ʻia ʻo passivation. He mea nui kēia i nā kila kila ma nā wahi kahi e koi ʻia ai ka ikaika a me ka pale ʻana i ka corrosion, e like me nā mea hana kemika a me nā mea lapaʻau.
4. Titanium
Manaʻo ʻia ʻo Titanium no kona kiʻekiʻe ikaika-a-kaumaha ratio a me ka maikaʻi o ka corrosion. ʻOiai ʻaʻole ikaika e like me ka tungsten, hiki i nā titanium alloys ke hoʻokō i nā ikaika tensile ma waena o 830 MPa a me 2,070 MPa, e pili ana i ka ʻenehana a me nā ʻenehana hana. ʻO ka haʻahaʻa haʻahaʻa o Titanium he mea kūpono ia no nā noi aerospace kahi e koʻikoʻi ai ka mālama paona.
Loaʻa nā noi lapaʻau mai ka biocompatibility o titanium. ʻO kona kūpaʻa ʻana i nā wai o ke kino e kūpono ia no nā hoʻokomo ʻana a me nā prosthetics. Hoʻohana ka ʻoihana aerospace i ka titanium i nā mīkini jet, airframes, a me nā mokulele ma muli o kona hiki ke kū i nā koʻikoʻi kiʻekiʻe a me nā mahana.
5. Inconel
ʻO Inconel kahi ʻohana o nā superalloys nickel-chromium. ʻIke ʻia no ko lākou hiki ke hoʻomau i ka ikaika a me ke kūʻē ʻana i ka corrosion i nā wela kiʻekiʻe loa, he mea nui nā alloys Inconel i nā kaiapuni ʻenehana kiʻekiʻe. Me ka ikaika o ka tensile ma mua o 1,000 MPa, hoʻohana ʻia lākou i nā noi e like me ka turbine blades, rocket engines, a me nā reactors nuklea.
ʻO ka hana kūʻokoʻa o nā huila Inconel mai ko lākou hiki ke hana i kahi papa ʻokiʻoki paʻa paʻa paʻa i nā wela kiʻekiʻe. Mālama kēia ʻāpana i ka mea mai ka hoʻouka hou ʻana, e kūpono ana ʻo Inconel i nā wahi koʻikoʻi loa kahi e pono ai ke kūpaʻa wela a me ka ikaika mechanical.
Hoʻohālikelike Hoʻohālikelike o nā Metala
I ka hoʻohālikelike ʻana i kēia mau metala, he mea nui e noʻonoʻo ʻaʻole wale i ko lākou ikaika tensile akā ʻo nā mea mechanical ʻē aʻe e like me ka paʻakikī, ductility, a me ka pale ʻana i ka hopena. ʻO Tungsten, ʻoiai ʻo ia ka ikaika tensile kiʻekiʻe loa, he palupalu nō hoʻi, e kaupalena ana i kona hoʻohana ʻana i nā noi kahi e koi ʻia ai ka maʻalahi. ʻO ke kila, ʻoi aku nā mea kila ikaika , hāʻawi i kahi kaulike o ka ikaika a me ka ductility, e hoʻohana nui ʻia.
Hoʻonui ʻo Chromium i nā waiwai o nā metala ʻē aʻe ma o ka hoʻohuihui ʻana, e hāʻawi ana i ka paʻakikī a me ka pale ʻana i ka corrosion. ʻAʻole kūlike ka ikaika māmā o Titanium, akā ʻo kona kumukūʻai kiʻekiʻe hiki ke lilo i mea palena. ʻO ka hoʻohana kūikawā ʻana o Inconel i nā kaiapuni koʻikoʻi e hōʻoiaʻiʻo i kona lilo i nā noi inā ʻaʻole he koho ʻole.
Nā noi i nā ʻoihana hou
Aerospace a me ka pale
Ke koi nei ka ʻoihana aerospace i nā mea hiki ke kū i nā koʻikoʻi kiʻekiʻe a me nā mahana. Hoʻohana nui ʻia ka Titanium a me Inconel i nā papa mokulele, nā ʻenekini, a me nā missiles. Hoʻopau ʻia ke kumukūʻai kiʻekiʻe o kēia mau mea e kā lākou hana a me ka lōʻihi o ka lawelawe.
ʻO nā holomua i ka metallurgy ua alakaʻi i ka hoʻomohala ʻana i nā kila ikaika loa, e like me ke kila maraging, i hoʻohana ʻia i nā pahu rocket a me nā mea aerospace ʻē aʻe. Hāʻawi kēia mau kila i ka ikaika a me ka paʻakikī ma hope o ka hoʻomaʻamaʻa ʻana i ka wela.
Kūkulu a me nā ʻoihana
ʻO ke kila ka iwi kuamoʻo o ka hana hou. ʻAʻole like kona hoʻohana ʻana i ke kūkulu hale, nā alahaka, a me nā papahana ʻoihana. ʻO ka hoʻomohala ʻana i nā kila ikaika kiʻekiʻe, haʻahaʻa haʻahaʻa i hoʻomaikaʻi i ka hana o nā hale me ka hoʻemi ʻana i ka hoʻohana ʻana i nā mea waiwai a me nā kumukūʻai.
ʻO nā kila pale ʻino, e like me nā kila hoʻoheheʻe, loaʻa nā mea e like me ka chromium a me ke keleawe. Hoʻokumu kēia mau kila i kahi ʻōpala pale e hoʻemi i ka nui o ka corrosion, hoʻonui i ke ola o nā hale a hoʻemi i nā kumukūʻai mālama.
ʻOihana Kaʻa
ʻO ka hoʻoikaika ʻana i ka pono wahie ua alakaʻi i ka ʻoihana kaʻa e ʻimi i nā mea māmā a ikaika. ʻO nā kila ikaika kiʻekiʻe a me nā mea titanium e hōʻemi i ke kaumaha o ke kaʻa me ka ʻole e hoʻopilikia i ka palekana. Hoʻohana nui ʻia nā mea hao kila i nā papa kaʻa, nā ʻāpana ʻenekini, a me nā hiʻohiʻona palekana e like me nā hale ʻōwili.
ʻO nā kila ikaika kiʻekiʻe kiʻekiʻe (AHSS) e ʻae i nā mea hoʻolālā e hoʻohana i nā mea lahilahi me ka mālama ʻana i ka crashworthiness. ʻO kēia ka hopena i nā kaʻa māmā me ka ʻoi aku ka maikaʻi o ka wahie a me ka hoʻemi ʻana i nā hoʻokuʻu.
Nā holomua ma ka Metallurgy
Ke hoʻomau nei ka noiʻi ʻana i ka metallurgy e pana i nā palena o ka ikaika metala. ʻO nā ʻenehana e like me ka nanostructuring a me ka hoʻohui ʻana me nā mea ʻenehana honua i alakaʻi i ka hoʻomohala ʻana i nā metala me nā waiwai ʻike ʻole. No ka laʻana, ke noiʻi nei nā mea noiʻi i nā aniani metala, kahi e hui pū ai i ka ikaika o nā metala me ka maʻalahi o ke aniani ma muli o kā lākou ʻano atomic amorphous.
ʻO kekahi ʻāpana o ka holomua ʻana ka hoʻohana ʻana i nā mea hoʻohui, kahi e hui pū ʻia ai nā metala me nā seramika a i ʻole nā polymers e hana i nā mea e hōʻike ana i ka nui o ka ikaika-a-kaumaha a me ka pale ʻana i ka corrosion. Loaʻa kēia mau mea i nā noi i ka aerospace, pale, a me nā ʻoihana olakino.
Nā pilikia a me nā manaʻo
ʻOiai he mea koʻikoʻi ka ikaika o kahi metala, pono e noʻonoʻo nā mea ʻenehana i nā waiwai ʻē aʻe e like me ka machinability, weldability, a me ke kumukūʻai. No ka laʻana, ʻo ka palupalu o ka tungsten a me ka paʻakikī i ka mīkini e kaupalena ʻia kona hoʻohana ākea ʻoiai kona ikaika kiʻekiʻe. Pēlā nō, hiki ke pāpā ʻia ke kumukūʻai o ka titanium a me Inconel no nā noi nui.
ʻO nā kumu kaiapuni kekahi mea nui. Hiki i ka unuhi a me ka hana ʻana o kēia mau metala ke loaʻa i nā hopena kaiapuni. Ke neʻe nei ka ʻoihana i nā hana hoʻomau e pili ana i ka hana hou ʻana a me ka hoʻomohala ʻana i nā kaʻina hana metallurgy ʻōmaʻomaʻo.
Manao e hiki mai ana
Aia ka wā e hiki mai ana o nā metala ikaika i ka hoʻomau ʻana i ka noiʻi a me ka hoʻomohala ʻana. ʻO nā holomua i ka nanotechnology a me ka ʻepekema waiwai e hoʻohiki i nā metala hou a me nā ʻāpana me nā waiwai kūpono no nā noi kikoʻī. ʻO ka hoʻohui ʻana o ka hoʻohālikelike hoʻohālikelike a me ka ʻike artificial e hoʻolalelale i ka loaʻa ʻana o nā mea hou.
Ke ʻimi ʻia nei nā mea e like me graphene a me nā mea ʻelua-dimensional ʻē aʻe no ko lākou ikaika a me nā waiwai uila. ʻOiai ʻaʻole metala, hiki ke hoʻohui ʻia me nā metala e hana i nā composites me ka hana i hoʻonui ʻia.
Ka hopena
ʻO ka ʻike ʻana i nā metala ikaika loa ʻelima e hōʻike ana i nā holomua kupaianaha i ka ʻepekema waiwai a me ka ʻenekinia. ʻO nā metala e like me tungsten, kila, chromium, titanium, a me Inconel e hāʻawi kūʻokoʻa i ka ʻenehana hou. ʻO ke kuleana o ʻAʻole hiki ke hoʻonuiʻia ke kila ikaika , no ka mea, hāʻawi ia i ke kaulike o ka ikaika, ka hiki, a me ka versatility.
Ke ulu nei nā ʻoihana a kū mai nā pilikia hou, e ulu mau ka koi no nā mea ikaika, māmā a paʻa. ʻO ka hoʻoikaika like ʻana o nā ʻepekema a me nā ʻenekinia ma ka honua holoʻokoʻa e hoʻolalelale ana i ke ala no ka hanauna hou o nā metala holomua e hoʻohālike i ka wā e hiki mai ana o ka ʻenehana a me nā ʻoihana.
