Qhov saum npoo ntawm aluminium alloy muaj cov khoom siv oxide zaj duab xis, uas yog xim los ua ib zaj duab xis sib xyaw. Cov zaj duab xis sib xyaw tsis yog tsuas yog tiv taus corrosion thiab kev sib txhuam, tab sis kuj muaj qee qhov hluav taws kub, yog li nws tau ua rau hauv qhov rooj aluminium alloy hluav taws. Lub qhov rooj hluav taws muaj lub zog flexural siab thiab me me deformation.