Austempering Transformation Kinetics of Compacted Graphite Cast Irons Obtained by Mössbauer Spectroscopy

Mossbauer spectroscopy has been applied systematically to study the processes occurring during the Stage I of the austempering transformation of compacted graphite cast irons at temperatures from 573 to 673 K for two Mn concentrations. The kinetics of transformation (γ→αFe+γhc) was followed determin...

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Detalles Bibliográficos
Autor principal: Desimoni, Judith
Formato: Articulo
Lenguaje:Español
Publicado: 2001
Materias:
Física
Ciencias Exactas
Mössbauer spectroscopy
austempering
Johnson–Mehl equation
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/145000
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-145000
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Física
Ciencias Exactas
Mössbauer spectroscopy
austempering
Johnson–Mehl equation
spellingShingle Física
Ciencias Exactas
Mössbauer spectroscopy
austempering
Johnson–Mehl equation
Desimoni, Judith
Austempering Transformation Kinetics of Compacted Graphite Cast Irons Obtained by Mössbauer Spectroscopy
topic_facet Física
Ciencias Exactas
Mössbauer spectroscopy
austempering
Johnson–Mehl equation
description Mossbauer spectroscopy has been applied systematically to study the processes occurring during the Stage I of the austempering transformation of compacted graphite cast irons at temperatures from 573 to 673 K for two Mn concentrations. The kinetics of transformation (γ→αFe+γhc) was followed determining the dependence of the high-carbon austenite percentage on austempering time for different austempering temperatures and Mn contents. The evolution of the C concentration and the total amount of C incorporated into high-carbon austenite were also monitored. The results are compared with those of other morphologies and discussed in the frame of Johnson-Mehl's and diffusion models.
format Articulo
Articulo
author Desimoni, Judith
author_facet Desimoni, Judith
author_sort Desimoni, Judith
title Austempering Transformation Kinetics of Compacted Graphite Cast Irons Obtained by Mössbauer Spectroscopy
title_short Austempering Transformation Kinetics of Compacted Graphite Cast Irons Obtained by Mössbauer Spectroscopy
title_full Austempering Transformation Kinetics of Compacted Graphite Cast Irons Obtained by Mössbauer Spectroscopy
title_fullStr Austempering Transformation Kinetics of Compacted Graphite Cast Irons Obtained by Mössbauer Spectroscopy
title_full_unstemmed Austempering Transformation Kinetics of Compacted Graphite Cast Irons Obtained by Mössbauer Spectroscopy
title_sort austempering transformation kinetics of compacted graphite cast irons obtained by mössbauer spectroscopy
publishDate 2001
url http://sedici.unlp.edu.ar/handle/10915/145000
work_keys_str_mv AT desimonijudith austemperingtransformationkineticsofcompactedgraphitecastironsobtainedbymossbauerspectroscopy
bdutipo_str Repositorios
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