2. Knowing that the melting point of pure iron is 1538 C and there are three...

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2. Knowing that the melting point of pure iron is 1538 C and there are three invariant reactions namely, at the peritectic (0.2% C, 1495 C), at the eutectic (4.3% C, 1148 C) and at the eutectoid (0.8% C, 727 C) points, sketch the iron - carbon phase diagram in the 0- 6.7% C interval. Label all the phase regions on it." Show the steel and the cast iron intervals on the same phase diagram. Decode the AISI-SAE 1040 steel. Choose carbon contents proper for an engine block and a car fender. Sketch the microstructure of the AISI-SAE 1040 steel at room temperature, and calculate the weight fractions of the total ferrite and the total cementite phases present in the microstructure. 2. Knowing that the melting point of pure iron is 1538 C and there are three invariant reactions namely, at the peritectic (0.2% C, 1495 C), at the eutectic (4.3% C, 1148 C) and at the eutectoid (0.8% C, 727 C) points, sketch the iron - carbon phase diagram in the 0- 6.7% C interval. Label all the phase regions on it." Show the steel and the cast iron intervals on the same phase diagram. Decode the AISI-SAE 1040 steel. Choose carbon contents proper for an engine block and a car fender. Sketch the microstructure of the AISI-SAE 1040 steel at room temperature, and calculate the weight fractions of the total ferrite and the total cementite phases present in the microstructure.