Transcription of CHAPTER 11: METAL ALLOYS APPLICATIONS AND PROCESSING
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CHAPTER 11: METAL ALLOYS APPLICATIONS AND PROCESSING
ISSUES TO 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? How can properties be modified by post heat treatment? CHAPTER 11: METAL ALLOYS APPLICATIONS AND PROCESSING Classifications of METAL ALLOYS Fe 3 C cementite METAL ALLOYS Steels Ferrous Nonferrous Cast Irons Cu Al Mg Ti < wt%C 1600 1400 1200 1000 800 6 00 4 00 0 1 2 3 4 5 6 L g austenite g +L g +Fe 3 C a ferrite a +Fe 3 C L+Fe 3 C d (Fe) Carbon concentration, C Eutectic Eutectoid 727 C 1148 C T( C) Steels < Cast Irons tic Ferrous ALLOYS : iron is the prime constituent Ferrous ALLOYS are relatively inexpensive and extremely versatile Thus these ALLOYS are wide spread engineering materials ALLOYS that are so brittle that forming by deformation is not possible ordinary are cast ALLOYS that are amenable to mechanical deformation are termed wrought Heat-treatable - are ALLOYS whose mechanical strength can be improved by heat-treatment ( precipitation hardening or martensitic transformations).
Classifications of Metal Alloys Fe3 C cementite800 deformation are termed Metal Alloys Steels ... • Cooper: soft and ductile; unlimited cold-work capacity, but difficult to ... - High Heat Transfer Efficiency: Under "in service" conditions, the heat transfer properties of ...
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