Aluminium alloy 7075

Aluminium alloy 7075

7075 aluminium alloy (AA7075) yog aluminium alloy nrog zinc ua lub ntsiab alloy. Nws muaj cov khoom siv kho tshuab zoo heev, qhia tau zoo ductility, siab zog, toughness thiab zoo qaug zog tsis kam. Nws yog qhov cuam tshuam rau embrittlement ntau dua li ntau lwm cov aluminium alloys vim muaj kev sib cais ntawm microscopic, tab sis nws cov corrosion kuj zoo dua li ntawm 2000 series alloys. Nws yog ib qho ntawm feem ntau siv aluminium alloys nyob rau hauv high-stress structural applications thiab tau dav siv nyob rau hauv aircraft structural Cheebtsam.

Cov muaj pes tsawg leeg ntawm 7075 aluminium alloy roughly suav nrog 5.6% mus rau 6.1% zinc, 2.1% rau 2.5% magnesium, 1.2% mus rau 1.6% tooj liab, thiab tsawg dua 0.5% ntawm silicon, hlau, manganese, titanium, chromium thiab lwm yam hlau. Nws los nyob rau hauv ntau yam xwm txheej, ib txhia ntawm lawv yog 7075-0, 7075-T6, 7075-T651.

Thawj 7075 tau zais tsis pub leej twg paub los ntawm Japanese tuam txhab Sumitomo Hlau hauv xyoo 1935, tab sis Alcoa thim rov qab-engineered nws nyob rau hauv 1943 tom qab kuaj ib tug ntes Japanese aircraft. 7075 yog tus qauv hauv xyoo 1945 rau kev siv aerospace. 7075 nws thiaj li siv nyob rau hauv airframe ntau lawm rau Imperial Japanese Navy.