Mechanical Engineering Exam > Mechanical Engineering Questions > Carbon in iron is an example ofa)substitution...
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Carbon in iron is an example of
- a)substitutional solution
- b)interstitial solid solution
- c)intermetallic compounds
- d)all of the above
- e)none of the above
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Carbon in iron is an example ofa)substitutional solutionb)interstitial...
Carbon in iron is an example of interstitial solid solution.
Explanation:
- Interstitial solid solution occurs when atoms of a solute element fit into the interstices or gaps between the atoms of the solvent element in a solid solution.
- In the case of carbon in iron, carbon atoms are smaller than iron atoms. When carbon atoms are added to iron, they fit into the interstitial spaces between the iron atoms.
- The addition of carbon to iron forms a solid solution known as steel. Steel is a strong and versatile material widely used in various industries.
- The carbon atoms in the steel lattice significantly influence its properties, such as hardness, strength, and ductility.
- The amount of carbon in steel determines its carbon content and affects its properties. Low carbon steel contains a small amount of carbon (up to 0.25%), while high carbon steel contains a higher amount of carbon (up to 2%).
- The presence of carbon in steel also affects its microstructure. For example, high carbon steel tends to have a harder and more brittle microstructure compared to low carbon steel.
- Interstitial solid solutions can also occur in other metal systems, where small atoms of one element occupy the interstitial spaces of a metal lattice. This can influence the properties of the resulting solid solution.
In summary, carbon in iron is an example of an interstitial solid solution, where carbon atoms occupy the interstitial spaces between iron atoms in the lattice structure of steel.
Explanation:
- Interstitial solid solution occurs when atoms of a solute element fit into the interstices or gaps between the atoms of the solvent element in a solid solution.
- In the case of carbon in iron, carbon atoms are smaller than iron atoms. When carbon atoms are added to iron, they fit into the interstitial spaces between the iron atoms.
- The addition of carbon to iron forms a solid solution known as steel. Steel is a strong and versatile material widely used in various industries.
- The carbon atoms in the steel lattice significantly influence its properties, such as hardness, strength, and ductility.
- The amount of carbon in steel determines its carbon content and affects its properties. Low carbon steel contains a small amount of carbon (up to 0.25%), while high carbon steel contains a higher amount of carbon (up to 2%).
- The presence of carbon in steel also affects its microstructure. For example, high carbon steel tends to have a harder and more brittle microstructure compared to low carbon steel.
- Interstitial solid solutions can also occur in other metal systems, where small atoms of one element occupy the interstitial spaces of a metal lattice. This can influence the properties of the resulting solid solution.
In summary, carbon in iron is an example of an interstitial solid solution, where carbon atoms occupy the interstitial spaces between iron atoms in the lattice structure of steel.
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Community Answer
Carbon in iron is an example ofa)substitutional solutionb)interstitial...
It's option B, as carbon is small enough to fit into the Iron structure and may form FCC or BCC.
This may result in the formation of steel, based on the percentage of Carbon in Iron.
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