Q. What is the line QR in this fooling curve known as?

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Q. In this figure, what does O denote?

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Q. Transformation of hypoeutectic cast iron is applicable for the composition of cast iron of ________ carbon.

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Q. Heating of 4.8% cast iron at _______ results in the formation of liquid metal.

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Q. Cooling of austenite of eutectoid composition at 723°C results in formation of ________

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Q. A mixture of austenite and cementite is called ___________

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Q. Slow cooling of hypereutectoid steel results in formation of __________

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Q. Cooling of hypoeutectoid steel post heating forms __________ ferrite.

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Q. Transformation in eutectoid steels is named as _________

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Q. Eutectoid steel is heated at __________

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Q. How much carbon does hypoeutectoid steel contain?

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Q. Steels containing 0.8% C are called ________

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Q. Composition up to 0.008% carbon is considered as _________

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Q. At what temperature does eutectoid reaction occur?

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Q. How much austenite does eutectic reaction form?

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Q. Peritectic reactions are applicable for carbon contents up to _________

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Q. At what temperature does peritectic reaction occur?

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Q. What is the maximum solubility of carbon in austenite at 1148°C?

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Q. How much iron does cementite contain?

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Q. What is the crystal structure of austenite upon heating?

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