Gray and nodular cast iron with ferrite matrix couldn't be hardened with traditional hardening methods (austenitizing and quenching), but with more austenitizing time some dissolution or decomposition of flakes and nodular graphite shows.
Fausto Catto
decomposition in what? Martensite? I think this is possible as when you austenitize austanite can take carbon from graphite. qurench
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Armin Rajabi
please find link as follow
www.princeton.edu/mae/people/faculty/carter/ecdocs/EAC-136.pdf
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Jaafar Hadi Abboud
High temperature austenization for a long time leads to dissolve some of the graphite flakes and enriching the austenite phase with carbon. The method may leads to decarborization of the surface.
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