Aluminum___Aluminum_Alloys

Aluminum___Aluminum_Alloys - Aluminum &...

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Unformatted text preview: Aluminum & Aluminum Alloys Assets of Aluminum: Lightweight (density = 2.7 gm/cc 3 ) Corrosion resistant Ductile Fabrication friendly Good electrical and thermal conductivity Strength/weight is good (specific strength) YS strongest /Ys weakest is high Nonmagnetic Low cost Low melting temperature Limitations of Aluminum: Stiffness low modulus (1/3 steel) Poor elevated temp strength Creeps Use generally limited to below 300F Wear Abrasivetoo soft Adhesivegalls Fatigue No endurance limit or too low to be useful Classification of Aluminums: Wrought: Shaped as solids via plastic deformation Attractive properties of wrought alloys Low yield strength High ductility High fracture resistance Good strain hardening Sub-classes Non-heat treatable NOTE : Non-heat treatable alloys tend to be single phase and offer the best corrosion resistance and weldability Heat treatable NOTE : Heat treatable alloys have the highest strength Wrought Alloys:...
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Aluminum___Aluminum_Alloys - Aluminum &...

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