Mechanical Engineering Exam > Mechanical Engineering Questions > In grey cast iron, carbon is present in the f...
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In grey cast iron, carbon is present in the form of
- a)cementite
- b)free carbon
- c)flakes
- d)spheroids
- e)nodular aggregates of graphite
Correct answer is option 'C'. Can you explain this answer?
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In grey cast iron, carbon is present in the form ofa)cementiteb)free c...
Grey Cast Iron and the presence of Carbon
Grey Cast Iron
Grey cast iron is a type of cast iron that contains graphite flakes in its microstructure. This gives it its characteristic grey color. Grey cast iron is relatively brittle and has low tensile strength, but it is also easy to cast and has good machinability.
Presence of Carbon in Grey Cast Iron
Carbon is a key component of grey cast iron. It is present in the form of flakes, which are formed during the solidification process. The carbon content of grey cast iron typically ranges from 2.5 to 4.0 percent.
Flakes
The carbon in grey cast iron is present in the form of flakes, which are also known as graphite. These flakes are the result of the way in which the carbon solidifies during the casting process. As the iron cools and solidifies, the carbon separates out and forms flakes or plates within the iron matrix. These flakes give the iron its characteristic grey color and also contribute to its brittleness.
Conclusion
In conclusion, carbon is present in grey cast iron in the form of flakes. These flakes are formed during the solidification process and give the iron its characteristic grey color. While grey cast iron is relatively brittle and has low tensile strength, it is also easy to cast and has good machinability.
Grey Cast Iron
Grey cast iron is a type of cast iron that contains graphite flakes in its microstructure. This gives it its characteristic grey color. Grey cast iron is relatively brittle and has low tensile strength, but it is also easy to cast and has good machinability.
Presence of Carbon in Grey Cast Iron
Carbon is a key component of grey cast iron. It is present in the form of flakes, which are formed during the solidification process. The carbon content of grey cast iron typically ranges from 2.5 to 4.0 percent.
Flakes
The carbon in grey cast iron is present in the form of flakes, which are also known as graphite. These flakes are the result of the way in which the carbon solidifies during the casting process. As the iron cools and solidifies, the carbon separates out and forms flakes or plates within the iron matrix. These flakes give the iron its characteristic grey color and also contribute to its brittleness.
Conclusion
In conclusion, carbon is present in grey cast iron in the form of flakes. These flakes are formed during the solidification process and give the iron its characteristic grey color. While grey cast iron is relatively brittle and has low tensile strength, it is also easy to cast and has good machinability.
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In grey cast iron, carbon is present in the form ofa)cementiteb)free c...
In grey cast iron, carbon is present in the form of free carbon which takes the shape of flakes. Hence, options 2 and 3 are correct.
Grey cast iron gets its name from the grey color that is observed when the material is fractured. This grey color is due to the presence of flake graphite. Cast irons are alloys of iron and carbon, with carbon content greater than 2%. In grey cast iron, the carbon is in the form of graphite flakes which give it its characteristic grey color on the fractured surface.
The free carbon in the form of graphite makes the grey cast iron have good machinability since the graphite flakes are weak points that allow the material to break away more easily. However, this also makes grey cast iron brittle and not suitable for applications where strength and ductility are required.
Grey cast iron gets its name from the grey color that is observed when the material is fractured. This grey color is due to the presence of flake graphite. Cast irons are alloys of iron and carbon, with carbon content greater than 2%. In grey cast iron, the carbon is in the form of graphite flakes which give it its characteristic grey color on the fractured surface.
The free carbon in the form of graphite makes the grey cast iron have good machinability since the graphite flakes are weak points that allow the material to break away more easily. However, this also makes grey cast iron brittle and not suitable for applications where strength and ductility are required.
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In grey cast iron, carbon is present in the form ofa)cementiteb)free carbonc)flakesd)spheroidse)nodular aggregates of graphiteCorrect answer is option 'C'. Can you explain this answer?
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