Wednesday, 9 March 2016


viii. Sorbite:

          This is also produced by the transformation of tempered martensite at a temperature of 590-640°C. It is produced when steel is heated at a fairly rapid rate from the temperature of the solid solution to normal room temperature. Its properties are intermediate between those of pearlite and troosite and has a good strength. It is practically pearlite. We may note that troosite and sorbite division of pearlite structure is quite conventional, since the mixture dispersity increases monotonously with decreasing temperature of transformation.

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