.... In this paper the dimensional changes during the aging time were investigated through a high precision dilatometer; this technique keeps the sample at constant temperature and follows the precipitation phenomena versus time continuously. All the samples were taken from commercial thick plates of different...

..., precipitation, dilatometer, aluminum nitrides, TEM Nomenclature T temperature DL length variation L0 initial length D average grain size D0 average initial grain size n time exponent K constant t time Introduction The control of the austenitic grain size of steel is very important because...