Direct determination of annealing ability of metals - by calorimetric method measuring energy released by recrystallisation when heated at controlled rate

The calorimetric method is based on measurement of the energy released in the recrystallisation process and comprises (a) initial cold deformation of the material causing embrittlement; (b) taking a sample suitable for measuring the energy liberated; (c) optimising the sample to improve measurement;...

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Hauptverfasser: PEREGRIN MONROS FRANCESC, GUIXA ARDERIU ORIOL, FERNANDEZ GONZALEZ JAVIER, GUILEMANY CASADAMON JOSE MARIA
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GUIXA ARDERIU ORIOL
FERNANDEZ GONZALEZ JAVIER
GUILEMANY CASADAMON JOSE MARIA
description The calorimetric method is based on measurement of the energy released in the recrystallisation process and comprises (a) initial cold deformation of the material causing embrittlement; (b) taking a sample suitable for measuring the energy liberated; (c) optimising the sample to improve measurement; (d) heating at a controlled rate to bring about recrystallisation; (e) application of an inert gas atmos; and (f) determining annealing ability using as parameters the recrystallisation onset temp, peak temp for conversion velocity or the temp at which 95% recrystallisation is achieved. METODO PARA LA DETERMINACION DIRECTA DEL GRADO DE RECOCIBILIDAD DE MATERIALES SOMETIDOS A ACRITUD MEDIANTE UN PROCESO DE DEFORMACION EN FRIO. EL METODO EMPLEA TECNICAS CALORIMETRICAS BASADAS EN LA MEDIDA DE LA ENERGIA LIBERADA EN EL PROCESO DE RECRISTALIZACION Y COMPRENDE LAS ETAPAS: A) DEFORMACION DEL MATERIAL INICIAL MEDIANTE UN PROCESO DE DEFORMACION EN FRIO PROVOCANDOLE ACRITUD, B) OBTENCION DE LA MUESTRA DE MASA ADECUADA PARA MEDIR DICHA ENERGIA LIBERADA, C) OPTIMIZACION DE LA MUESTRA PARA LA MEJOR MEDIDA DE DICHA ENERGIA LIBERADA, D) CALENTAMIENTO A VELOCIDAD CONTROLADA PARA PROVOCAR LA RECRISTALIZACION, E) APLICACION DE ATMOSFERA DE GAS INERTE, F) DETERMINACION DE LA RECOCIBILIDAD DEL MATERIAL EN CUESTION UTILIZANDO COMO PARAMETRO, POR EJEMPLO, LA TEMPERATURA DE INICIO DE LA RECRISTALIZACION (TEMPERATURA ONSET), LA TEMPERATURA A LA CUAL SE ALCANZA LA MAXIMA VELOCIDAD DE TRANSFORMACION (TEMPERATURA DE PICO MAXIMO), O LA TEMPERATURA A LA CUAL SE ALCANZA EL 95% DE RECRISTALIZACION.
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EL METODO EMPLEA TECNICAS CALORIMETRICAS BASADAS EN LA MEDIDA DE LA ENERGIA LIBERADA EN EL PROCESO DE RECRISTALIZACION Y COMPRENDE LAS ETAPAS: A) DEFORMACION DEL MATERIAL INICIAL MEDIANTE UN PROCESO DE DEFORMACION EN FRIO PROVOCANDOLE ACRITUD, B) OBTENCION DE LA MUESTRA DE MASA ADECUADA PARA MEDIR DICHA ENERGIA LIBERADA, C) OPTIMIZACION DE LA MUESTRA PARA LA MEJOR MEDIDA DE DICHA ENERGIA LIBERADA, D) CALENTAMIENTO A VELOCIDAD CONTROLADA PARA PROVOCAR LA RECRISTALIZACION, E) APLICACION DE ATMOSFERA DE GAS INERTE, F) DETERMINACION DE LA RECOCIBILIDAD DEL MATERIAL EN CUESTION UTILIZANDO COMO PARAMETRO, POR EJEMPLO, LA TEMPERATURA DE INICIO DE LA RECRISTALIZACION (TEMPERATURA ONSET), LA TEMPERATURA A LA CUAL SE ALCANZA LA MAXIMA VELOCIDAD DE TRANSFORMACION (TEMPERATURA DE PICO MAXIMO), O LA TEMPERATURA A LA CUAL SE ALCANZA EL 95% DE RECRISTALIZACION.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record>
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subjects CHEMISTRY
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
title Direct determination of annealing ability of metals - by calorimetric method measuring energy released by recrystallisation when heated at controlled rate
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