1. Fatigue Strength (Txoj Kev Txwv)
Qib 2 muaj qhov zoo -txhais kev qaug zog endurance txwv (theem kev ntxhov siab hauv qab no uas nws tuaj yeem tiv taus ntau lub voj voog yam tsis muaj kev ua haujlwm). Rau cov qauv du, polished hauv axial loading, lub zog qaug zog yog kwv yees li 170-200 MPa ntawm 107 cycles. Tus nqi no yog qhov siab dua li ntawm ntau cov hlau uas zoo sib xws thiab zoo dua rau cov aluminium alloys.
2.Qhov tshwm sim ntawm qhov chaw nyob
Kev qaug zog ntawm Qib 2 yog qhov ua tau zoo heev rau qhov ua tiav.
Ib tug ntxhib nto, machining marks, los yog khawb ua raws li kev ntxhov siab thiab muaj peev xwm txo tau lub neej qaug zog.
Cov txheej txheem zoo li polishing, txhaj tshuaj peening, lossis nto sib tsoo tuaj yeem txhim kho kev qaug zog los ntawm kev nthuav qhia cov kev ntxhov siab uas seem thiab tshem tawm qhov tsis xws luag.
3.Kev cuam tshuam ntawm ib puag ncig
Hauv huab cua ambient, Qib 2 tswj kev qaug zog zoo heev. Txawm li cas los xij, nyob rau hauv ib puag ncig hnyav (xws li dej hiav txwv, cov tshuaj corrosive), nws lub zog qaug zog tuaj yeem raug txo vim kev sib xyaw ua ke ntawm corrosion thiab cyclic loading, hu ua Corrosion Fatigue. Thaum nws muaj zog tiv taus corrosion ntau dua li lwm cov hlau, qhov qaug zog tawg tuaj yeem ua kom nrawm rau hauv xov xwm corrosive.
4.Notch Sensitivity
Qib 2 muaj qhov qis qis qis dua piv rau siab - lub zog alloys. Qhov no txhais tau hais tias kev ntxhov siab ntau ntawm qhov, xov, lossis cov fillets muaj kev cuam tshuam tsawg dua rau nws lub neej qaug zog, ua rau nws ntseeg tau rau cov khoom siv nrog cov geometries nyuaj.
5. Daim ntawv thov
Due to its favorable fatigue properties combined with low density and high corrosion resistance, Grade 2 is widely used in cyclic load applications such as aerospace components, marine hardware, medical implants, and pressure vessels.
