Vanadium imapanga VAL11 refractory compound mu aluminiyamu alloy, yomwe imagwira ntchito poyenga mbewu mu kusungunuka ndi kuponyera, koma zotsatira zake ndizochepa kuposa za titaniyamu ndi zirconium. Vanadium imakhalanso ndi zotsatira zoyenga mawonekedwe a recrystallization ndikuwonjezera kutentha kwa recrystallization.
Kusungunuka kwa calcium mu aluminium alloy ndikotsika kwambiri, ndipo kumapanga CaAl4 pawiri ndi aluminiyamu. Calcium ndi chinthu chapamwamba kwambiri cha aluminium alloy. Aluminiyamu alloy ndi pafupifupi 5% calcium ndi 5% manganese ali superplasticity. Calcium ndi silicon zimapanga CaSi, zomwe sizisungunuka mu aluminiyamu. Popeza kuchuluka kwa njira yolimba ya silicon kumachepetsedwa, madutsidwe a aluminiyumu yoyera yamafakitale amatha kusintha pang'ono. Calcium imatha kupititsa patsogolo ntchito yodula ya aloyi ya aluminiyamu. CaSi2 singalimbikitse chithandizo cha kutentha kwa aloyi ya aluminiyamu. Trace calcium imathandiza kuchotsa haidrojeni mu aluminiyamu yosungunuka.
Zinthu za lead, malata, ndi bismuth ndizitsulo zosasungunuka kwambiri. Ali ndi kusungunuka kolimba pang'ono mu aluminiyumu, komwe kumachepetsa pang'ono mphamvu ya alloy, koma kumatha kupititsa patsogolo ntchito yodula. Bismuth imakula panthawi yolimba, yomwe imakhala yopindulitsa pakudyetsa. Kuonjezera bismuth ku ma alloys apamwamba a magnesium kumatha kuteteza "sodium brittleness".
Antimony imagwiritsidwa ntchito makamaka ngati chosinthira muzitsulo zotayidwa za aluminiyamu, ndipo sichimagwiritsidwa ntchito kawirikawiri pazitsulo za aluminiyamu. Bismuth m'malo mwa Al-Mg wopangidwa ndi ma aluminiyamu aloyi kuti ateteze kusokonekera kwa sodium. Chinthu cha antimony chikawonjezeredwa kuzitsulo zina za Al-Zn-Mg-Cu, kachitidwe ka kukanikiza kotentha ndi kukanikiza kozizira kumatha kusintha.
Beryllium imatha kusintha mawonekedwe a filimu ya okusayidi mu aloyi wopangidwa ndi aluminiyamu ndikuchepetsa kutayika koyaka ndi kuphatikizika pakuponya. Beryllium ndi chinthu chapoizoni chomwe chingayambitse poyizoni. Choncho, zitsulo zotayidwa zomwe zimagwirizanitsidwa ndi chakudya ndi zakumwa sizingakhale ndi beryllium. Zomwe zili mu beryllium muzinthu zowotcherera nthawi zambiri zimayendetsedwa pansi pa 8μg/ml. Aluminiyamu alloy omwe amagwiritsidwa ntchito ngati chowotcherera ayeneranso kuwongolera zomwe zili mu beryllium.
Sodium imakhala pafupifupi yosasungunuka mu aluminiyamu, kusungunuka kolimba kwambiri kumakhala kosakwana 0.0025%, ndipo malo osungunuka a sodium ndi otsika (97.8 ° C). Pamene sodium ilipo mu aloyi, imatulutsidwa pamwamba pa dendrites kapena malire a tirigu panthawi yolimba. Pakutentha kwamafuta, sodium pamalire ambewu imapanga wosanjikiza wamadzimadzi, ndipo pamene brittle cracking imachitika, gulu la NaAlSi limapangidwa, palibe sodium yaulere, ndipo "sodium brittleness" sichitika. Pamene magnesiamu iposa 2%, magnesium imatenga silicon ndikutulutsa sodium yaulere, zomwe zimapangitsa "sodium embrittlement". Chifukwa chake, ma aloyi apamwamba a magnesium aluminium saloledwa kugwiritsa ntchito mchere wa sodium. Njira yothetsera "sodium embrittlement" ndiyo njira ya chlorination, yomwe imapanga mawonekedwe a sodium NaCl ndikuyitulutsa mu slag, ndikuwonjezera bismuth kuti apange Na2Bi ndikulowa muzitsulo zachitsulo; kuwonjezera antimony kupanga Na3Sb kapena kuwonjezera osowa lapansi kungathenso kuchita chimodzimodzi.
Adasinthidwa ndi May Jiang kuchokera ku MAT Aluminium
Nthawi yotumiza: Nov-11-2023
