Yuav ua li cas aloying ntsiab lus hloov txhuas lub zog?
Adding elements like magnesium (0.5-5%) increases tensile strength through solid solution hardening, while silicon (7-12%) enhances castability by lowering melting point. Copper (2-10%) enables precipitation hardening (e.g., 2024 alloy), boosting yield strength to 450MPa. Iron improves high-temperature stability, but excess (>0.5%) txo cov qauv sib luag. Niaj hnub nimno alloys zoo li 7075 ua ke nrog Zinc (5.6%) thiab magnesium (2.5%) rau aerospace-rau-qhov kev sib piv.
Dab tsi yog cov feem ntau alloy series thiab lawv siv?
Lub 1xxx series (99% al) yog rau cov tso tsheb hlau luam yeeb yam {}} xxx (mg-si-si salmed, piv txwv li 6061) yog qhov zoo tagnrho rau Cov txheej txheem extrusions nyob rau hauv cov vaj tse . 7 xxx (zn-cu) domincates aircyccor Cheebtsam, nrog 7075-t6 ua tiav 570MPA lub zog kawg.
Vim li cas thiaj xaiv Alloy Aluminium dhau cov ntshiab txhuas daim hlau?
Alloy daim hlau muaj 3-10X siab dua lub zog (piv txwv li, 6061-T6: 310MPA VS AL: 90MPA). Lawv pab tau kev kho cua sov (T4 / T6 TIV nyuaj) rau customized hardness. Qee cov alloys (piv txwv li, 5052-H32) muab 40% zoo dua nkees tsis kam rau kev thauj khoom zoo. Tus nqi-ua haujlwm muaj peev xwm heev - kev txo qis cov ntaub ntawv tuab yuav tsum muaj, txuag 15-30% hnyav hauv kev thauj. Cov neeg tshwj xeeb alloys zoo li 2219 txawm tiv taus cryogenic kub (-250 degree).
Alloy Xaiv Qhov Cuam Tshuam Kev Ua Yeeb Yam Tau Li Cas?
High-tooj alloys (piv txwv li, 2024) yog nquag ua rau kub tawg tshwj tsis yog siv cov xaij hlau 40). Magnesium-nplua nuj alloys (5xxx) yuav tsum muaj kev tiv thaiv argon kom tiv thaiv cov tshuaj pleev oxide. Tshav kub-kho cov alloys (6xxx / 7xXX / 7xxx) poob 30-50% muaj zog nyob rau hauv tshav kub-cuam tshuam rau ib thaj chaw, tsim nyog tom qab weld kev laus. Kev sib txhuam tshiab-tsoo vuam cov tswv yim tam sim no cia cov pob qij txha tsis muaj kev ywj pheej rau yav dhau los "qib tsis muaj cai" zoo li 7075.
Dab tsi yog cov xwm txheej tawm hauv txhuas alloy kev loj hlob?
Kev tshawb fawb tsom rau scandium-hloov alloys (0.1-0.5% SC) rau 20% siab dua muaj zog tsis muaj zog. Rov qab siv alloys zoo li 5182-R tam sim no teeb meem 75% tom qab cov neeg siv khoom seem. Nano-engineered alloys (piv txwv li, al-li 2099) txo lub dav hlau hnyav los ntawm 8%. Digital Alloy Tsim Siv Ai (zoo li Baidu Tus TasBaddle) AccelerCoughroughrough tias corrosion tsis kam nyob rau hauv AA7085.
