Ch. 14 - Nonferrous Alloys - Ch. 14 - Nonferrous Alloys...

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Thursday, November 04, 2010 11:55 AM Nonferrous-base metal other than that of Iron: Al, Cu, Ni, Co, Zn, Ti Weight is important but you have to consider strength as well. Use specific strength: Strength/Density Al 8.6E5 M 8.7E5 Ti 9.8E5 Glass Epoxy 2E6 14.1 Aluminum Alloys It is second to steel in use. They have a low density. 2.7 g/cm 3 vs. 2.79 g/cm for Iron Good electrical/thermal conductivity. It's FCC so it is ductile. Relatively low melting point (660 C if pure) Good corrosion resistance (protected by an oxide film) Oxide file=Al 2 O 3 =sapphire Cast and wrought form. It has a lower modulus than steel (about 1/3 of steel) Strengthening is due to additions for precipitation hardening and solid solution strengthening. Wrought Alloys Deformation processing. Aluminum association uses a 4 digit code: 1st digit is the major alloying element. For a larger list of common elements see table 14.5. Al
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Ch. 14 - Nonferrous Alloys - Ch. 14 - Nonferrous Alloys...

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