Chapter 11- ISSUES TO ADDRESS... How are metal alloys classified and how are they used? What are some of the common fabrication techniques? How do properties.

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Presentation transcript:

Chapter 11- ISSUES TO ADDRESS... How are metal alloys classified and how are they used? What are some of the common fabrication techniques? How do properties vary throughout a piece of material that has been quenched, for example? 1 How can properties be modified by post heat treatment? CHAPTER 11: METAL ALLOYS APPLICATIONS AND PROCESSING

Chapter 11-2 Adapted from Fig. 9.21,Callister 6e. (Fig adapted from Binary Alloy Phase Diagrams, 2nd ed., Vol. 1, T.B. Massalski (Ed.-in-Chief), ASM International, Materials Park, OH, 1990.) Adapted from Fig. 11.1, Callister 6e. TAXONOMY OF METALS

Chapter 11- Fe 3 C  3Fe(  )+C(graphite) Gray iron Nodular (ductile) iron White iron Malleable iron: dark graphite rosettes (temper carbon) in an  -ferrite matrix. Metastable compound If Si content > 1 wt%, then:

Chapter 11- The true equilibrium iron-carbon phase diagram: for Si > 1 wt%