Chapter7ba - ©2003 Bil Young 1 Materials & Processes...

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Unformatted text preview: ©2003 Bil Young 1 Materials & Processes in Manufacturing ME 151 Chapter 7 Nonferrous Metals and Alloys ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bil Young 2 Introduction Introduction • Copper and Copper Alloys • Aluminum and Aluminum Alloys • Magnesium and Magnesium Alloys • Zinc-Based Alloys • Titanium and Titanium Alloys • Nickel-Based Alloys • Superalloys • Refractory Metals Figure 7-1 Page 126 ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bil Young 3 Introduction Introduction Nonferrous metals make up a large group of materials that offer a wide range of properties Nonferrous materials are generally higher cost than iron & steel materials Nonferrous materials often have properties or combinations of properties not available in ferrous metals Desirable Properties Disadvantages Resistance to _____________ Higher cost Ease of fabrication Lower _________ than steel Good _____________ Lower Modulus of Elasticity High electrical and thermal conductivity Poor weldability Light weight Strength at elevated temperatures Color ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bil Young 4 Copper and Copper Based Alloys Copper and Copper Based Alloys Primary metal used in the electrical industry Primary metal for brasses and bronzes Widely used for manufactured products due to properties Desirable Properties Undesirable Properties High electrical & thermal conductivity Low stress tolerance at elevated temp. Low strength with high ductility Oxygen content can cause brittleness Good corrosion resistance Copper-Zinc Alloys - Alloys known as __________ • Table 7.2 Page 171 (Typical Uses) Copper-Tin Alloys - Alloys known as ___________ • Good strength, toughness, wear resistance, & corrosion resistance • Uses: Bearings, Gears, Pipe Fittings Copper-Nickel Alloys • High thermal conductivity, high-temperature strength, corrosion resistance • Uses: Heat Exchangers, Cookware ___________________________________ ___________________________________ ___________________________________...
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This note was uploaded on 04/19/2008 for the course ME 151 taught by Professor Alant.male during the Spring '08 term at Kentucky.

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Chapter7ba - ©2003 Bil Young 1 Materials & Processes...

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