Solidification patterns of steels, with different compositions of carbon, in sand and metal molds by time...

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Solidification patterns of steels, with different compositions of carbon, in sand and metal molds by time elapse are represented in the following images. Briefly explain the differences observed between the microstructures that develop from mold walls in each case. (2 marks) 4- 0.05 0.10%C 0.25 – 0.30% C 0.55 0.60% C Steel Steel Steel Chill mold Sand Chill mold Sand mold Sand Chill mold mold mold 黑 D 15 2 16 2 Minutes after pouring Solidification patterns of steels, with different compositions of carbon, in sand and metal molds by time elapse are represented in the following images. Briefly explain the differences observed between the microstructures that develop from mold walls in each case. (2 marks) 4- 0.05 0.10%C 0.25 – 0.30% C 0.55 0.60% C Steel Steel Steel Chill mold Sand Chill mold Sand mold Sand Chill mold mold mold 黑 D 15 2 16 2 Minutes after pouring

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Solution In all three steel grades it is observed that chill zone thickness is higher in chill mold ... View the full answer