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Chapter 11: Problem 9

What is the principal difference between wrought and cast alloys?

Short Answer

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Short Answer: Wrought alloys are processed through mechanical means like rolling, extrusion, or forging, resulting in improved mechanical properties due to the refinement of the microstructure. Cast alloys, on the other hand, are created by melting the metal and pouring it into a mold, resulting in a more heterogeneous microstructure but allowing for more complex shapes. The principal difference between wrought and cast alloys is the processing method and the resulting microstructure and mechanical properties.

Step by step solution

01

Definition of Wrought Alloys

Wrought alloys are metals that have been mechanically processed, such as by rolling, extrusion, or forging, to change their shape and properties. These processes often involve plastic deformation, which refines the microstructure and improves the mechanical properties of the alloy.
02

Definition of Cast Alloys

Cast alloys are metals that have been melted and then poured into a mold to take on a specific shape as they solidify. The process of casting allows for complex and intricate shapes to be made, but often results in a more heterogeneous microstructure within the solidified metal.
03

Principal Difference between Wrought and Cast Alloys

The principal difference between wrought and cast alloys lies in the way they are processed. Wrought alloys are formed through mechanical processes like rolling, extrusion, or forging that result in plastic deformation and refinement of the microstructure for improved mechanical properties. On the other hand, cast alloys are formed by melting the metal and pouring it into a mold, which typically leads to a more heterogeneous microstructure but allows for the creation of complex shapes.

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Most popular questions from this chapter

Compute the volume percent of graphite \(V_{\mathrm{Gr}}\) in a \(3.5 \mathrm{wt} \% \mathrm{C}\) cast iron, assuming that all the carbon exists as the graphite phase. Assume densities of \(7.9\) and \(2.3 \mathrm{~g} / \mathrm{cm}^{3}\) for ferrite and graphite, respectively.

On the basis of microstructure, briefly explain why gray iron is brittle and weak in tension.

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Is it possible to produce malleable cast iron in pieces having large cross- sectional dimensions? Why or why not?

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