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High temperature tempering develops a ________ structure.

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High temperature tempering develops a ________ structure.

(a) Non-lamellar

(b) Sorbite

(c) Tempered-troostite

(d) Pearlite

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Asked question is from Tempering in division Heat Treatment of Engineering Material & Metallurgy

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The correct choice is (b) Sorbite

To elaborate: High-temperature tempering is usually carried out in a temperature range between 500^oC and 650^oC. This process develops a sorbite structure. This is used to completely eliminate internal stresses in the material.

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