He Aluminum Aluminum Hana Kiʻekiʻe: Al-Sc Alloy

He Aluminum Aluminum Hana Kiʻekiʻe: Al-Sc Alloy

ʻO Al-Sc alloy kahi ʻano alumini alumini kiʻekiʻe. Nui nā ala e hoʻomaikaʻi ai i ka hana o ka alumini alumini, ma waena o ka micro-alloying hoʻoikaika a me ka paʻakikī ke kahua mua o ka noiʻi alumini alumini hana kiʻekiʻe i nā makahiki 20 i hala iho nei.

ʻO ka helu hoʻoheheʻe o ka scandium he 1541 ℃, a ʻo ka alumini he 660 ℃, no laila pono e hoʻohui ʻia ka scandium i ka alumini alumini ma ke ʻano o ka master alloy, ʻo ia ke kumu kumu kumu no ka hoʻomākaukau ʻana i ka alumini alumini i loaʻa i ka scandium. Nui nā ʻano hana no ka hoʻomākaukau ʻana i nā alloy master, e like me ke ʻano doping, scandium fluoride, scandium oxide metal thermal reduction method, molten salt electrolysis method a pēlā aku. “

ʻO ke ʻano doping ka hoʻohui pololei ʻana i ka scandium metala i ka alumini alumini, ʻo ia ke kumu kūʻai, ka pau ʻana o ke ahi i ka hana hoʻoheheʻe ʻana a me ke kumu kūʻai kiʻekiʻe o ka master alloy.

Hoʻohana ʻia ʻo Toxic hydrogen fluoride i ka hoʻomākaukau ʻana i ka scandium fluoride e ke ʻano hoʻohaʻahaʻa wela metala o scandium fluoride, nona nā mea paʻakikī a me ke kiʻekiʻe metala wela hoʻohaʻahaʻa wela.

ʻO ka hoʻihoʻi hou ʻana o ka scandium e ka hoʻohaʻahaʻa wela metala o ka scandium oxide he 80% wale nō;

He paʻakikī ka mea hoʻoheheʻe paʻakai electrolysis a ʻaʻole kiʻekiʻe ka helu hoʻololi.

Ma hope o ka hoʻohālikelike ʻana a me ke koho ʻana, ʻoi aku ka maikaʻi o ka hoʻomākaukau ʻana i ka Al-Sc master alloy ma ka hoʻohana ʻana i ke ʻano hoʻemi wela o ka paʻakai hoʻoheheʻe ʻia ʻo Al-Mg.

Hoʻohana:

ʻO ka hoʻohui ʻana i ka scandium trace i ka alumini alumini hiki ke hoʻoikaika i ka hoʻomaʻemaʻe palaoa a hoʻonui i ka mahana recrystallization e 250℃~280℃. He mea hoʻomaʻemaʻe palaoa ikaika a me kahi mea hoʻopaneʻe recrystallization maikaʻi no ka alumini alumini, kahi i ʻike maopopo ʻia i ka th.ʻO ka hoʻolālā a me nā waiwai o ka huila a hoʻomaikaʻi nui i kona ikaika, paʻakikī, weldability a me ka pale ʻana i ka corrosion.

He hopena hoʻoikaika maikaʻi ʻo Scandium ma luna o ka alumini, a mālama i kahi ʻano paʻa ʻole i hoʻopaʻa ʻia i ka hana wela a i ʻole ka hoʻomaʻamaʻa annealing. ʻO kekahi mau ʻāpana he mau pepa ʻōwili anuanu me ka deformation nui, e mālama mau ana i kēia ʻano ma hope o ka annealing. Hiki i ka pale ʻana i ka scandium ma ka recrystallization ke hoʻopau i ka hana recrystallization i ka wela wela o ka weld, Hiki ke hoʻololi pololei ʻia ke ʻano subgrain o ka matrix i ke ʻano hoʻokalakupua o ka weld, e hana ai i ka hui welded o ka alumini alumini i loaʻa i ka scandium. ikaika kiʻekiʻe a me ka corrosion.

ʻO ka hopena o ka scandium i ke kūpaʻa ʻana o ka alumini alumini ma muli o ka hoʻomaʻemaʻe ʻana i ka palaoa a me ka pale ʻana i ke kaʻina hana recrystallization.

Hiki i ka hoʻohui ʻana o ka scandium ke hana i ke alumini alumini he superplasticity maikaʻi, a ʻo ka elongation o ka alumini alumini me 0.5% scandium hiki ke hiki i 1100% ma hope o ka mālama superplastic.

No laila, ua manaʻo ʻia ʻo Al-Sc alloy e lilo i hanauna hou o nā mea hana māmā no ka aerospace, aviation a me nā ʻoihana moku, ka mea i hoʻohana nui ʻia no ka hoʻopaʻa ʻana i nā ʻāpana hana o ka aerospace, aviation a me ka moku, nā paipu alumini alumini no ka alkaline corrosive medium environment, nā pahu aila kaʻaahi, nā ʻāpana hana nui o nā kaʻaahi holo wikiwiki, etc

Manaʻo noi:

Loaʻa i ka sc-i loko o ka alumini alumini ka manaʻolana ākea i nā keʻena ʻenehana kiʻekiʻe e like me ka moku, ka ʻoihana aerospace, rocket a me ka missile, ka ikehu nuklea, a me nā mea ʻē aʻe. nā mea alumini alumini e pili ana i ka alumini alumini e kū nei, e like me ka ikaika ultra-kiʻekiʻe a me ka paʻakikī kiʻekiʻe alumini alumini, kiʻekiʻe ka ikaika corrosion-resistant alumini alumini, kiʻekiʻe-ikaika neutron irradiation ʻO ka alumini alumini kūpaʻa a me nā mea'ē aʻe. E loaʻa i kēia mau mea hoʻohui i kahi manaʻo noi maikaʻi loa i ka aerospace, ka ikehu nuklea a me nā ʻoihana hana moku ma muli o kā lākou mau waiwai piha maikaʻi loa, a hiki ke hoʻohana ʻia i nā kaʻa māmā a me nā kaʻaahi kiʻekiʻe. No laila, ua lilo ke alumini alumini scandium i kekahi mea hoʻolālā maikaʻi loa a hoʻokūkū kiʻekiʻe ma hope o AlLi alloy.Ua waiwai nui ʻo China i nā kumu scandium a loaʻa kekahi kumu no ka noiʻi scandium a me ka hana ʻoihana, ʻo ia nō ka mea hoʻopuka nui o scandium oxide. He mea nui ia e hoʻomohala i nā mea alumini alumini no ka ʻenehana kiʻekiʻe a me ka hana pale aupuni ma Kina, a hiki iā AlSc ke hāʻawi i ka pāʻani piha i nā pono o nā kumu scandium ma Kina a hoʻoikaika i ka hoʻomohala ʻana i ka ʻoihana scandium a me ka hoʻokele aupuni ma Kina. .