Tensile and bending properties of AA5754 aluminum alloys

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 316; no. 1; pp. 52 - 59
• Main Authors: Sarkar, J., Kutty, T.R.G., Conlon, K.T., Wilkinson, D.S., Embury, J.D., Lloyd, D.J.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.10.2001; Elsevier
• Subjects: Aluminum alloys; Applied sciences; Bendability; Elasticity. Plasticity; Exact sciences and technology; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology; Metals. Metallurgy; Tensile; Tensile; Aluminum alloys; Bendability; Scanning electron microscopy; Aluminium base alloys; Impurity density; Ductility; Slip line; Experimental study; Cavitation; Texture; Tension test; Iron addition; Automobile industry; Ripple; Cold rolled sheet; Surface conditions; Damaging; Bending test; Crack
• ISSN: 0921-5093; 1873-4936
• DOI: 10.1016/S0921-5093(01)01226-6

The ductility and bendability of AA5754 automotive sheets have been investigated as a function of iron content. The influence of pre-strain, introduced by cold rolling, on the bendability has also been examined. The low iron containing alloy (0.08 wt.%) showed development of surface instability in the form of small undulations on the tensile surface. In contrast, the high iron containing alloy (0.30 wt.%) showed cracks on the tensile surface. The development of damage during bending has been studied by carrying out in-situ bend tests in a scanning electron microscope. High iron containing alloy exhibits damage at the iron rich particles which leads to drastic reduction in the bendability.